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Ueshima T, Endo K, Nishimura H, Sawaji Y, Suzuki H, Aihara T, Murata K, Konishi T, Kusakabe T, Yamauchi H, Matsubayashi J, Yamamoto K. Magnetic resonance imaging findings in patients with dropped head syndrome. J Orthop Sci 2024:S0949-2658(24)00062-9. [PMID: 38705766 DOI: 10.1016/j.jos.2024.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 03/04/2024] [Accepted: 04/17/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND Dropped head syndrome (DHS) is difficult to diagnose only by clinical examination. Although characteristic images on X-rays of DHS have been studied, changes in soft tissue of the disease have remained largely unknown. Magnetic resonance imaging (MRI) is useful for evaluating soft tissue, and we therefore performed this study with the purpose of investigating the characteristic signal changes of DHS on MRI by a comparison with those of cervical spondylosis. METHODS The study involved 35 patients diagnosed with DHS within 6 months after the onset and 32 patients with cervical spondylosis as control. The signal changes in cervical extensor muscles, interspinous tissue, anterior longitudinal ligament (ALL) and Modic change on MRI were analyzed. RESULTS Signal changes of cervical extensor muscles were 51.4% in DHS and 6.3% in the control group, those of interspinous tissue were 85.7% and 18.8%, and those of ALL were 80.0% and 21.9%, respectively, suggesting that the frequency of signal changes of cervical extensor muscles, interspinous tissue and ALL was significantly higher in the DHS group (p < 0.05). The presence of Modic change of acute phase (Modic type I) was also significantly higher in the DHS group than in the control group (p < 0.001). CONCLUSION MRI findings of DHS within 6 months after the onset presented the characteristic signal changes in cervical extensor muscles, interspinous tissue, ALL and Modic change. Evaluation of MRI signal changes is useful for an objective evaluation of DHS.
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Affiliation(s)
- Tomoyuki Ueshima
- Department of Orthopedic Surgery, Tokyo Medical University, Japan.
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Japan
| | | | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, Japan
| | | | - Takuya Kusakabe
- Department of Orthopedic Surgery, Tokyo Medical University, Japan
| | - Hideya Yamauchi
- Department of Orthopedic Surgery, Tokyo Medical University, Japan
| | - Jun Matsubayashi
- Department of Anatomic Pathology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Japan
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Endo K, Nishimura H, Sawaji Y, Aihara T, Suzuki H, Konishi T, Nagayama K, Yamamoto K. Contrast-enhanced Magnetic Resonance Imaging in Patients With Dropped Head Syndrome. Spine (Phila Pa 1976) 2024; 49:385-389. [PMID: 37791664 DOI: 10.1097/brs.0000000000004841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 09/10/2023] [Indexed: 10/05/2023]
Abstract
STUDY DESIGN This is a retrospective study of a consecutive case series of dropped head syndrome (DHS). OBJECTIVE To identify the characteristic features of contrast-enhanced magnetic resonance imaging (MRI) in DHS patients. SUMMARY OF BACKGROUND DATA Isolated neck extensor myopathy DHS is thought to be caused by severe cervical extensor muscle weakness from age-related loss of elasticity. However, the MRI findings of the cervical extensor muscles in DHS patients have not yet been characterized. MATERIALS AND METHODS The subjects were 34 patients with isolated neck extensor myopathy DHS who underwent contrast-enhanced MRI within seven months after onset and 32 patients with age-matched cervical spondylosis or cervical soft-tissue tumor as controls. The presence of enhanced findings in the cervical extensor muscles, the involved cervical levels, and the characteristically enhanced shape of those muscles were evaluated using contrast-enhanced MRI. RESULTS In the DHS group, the contrast-enhanced MRI showed pronounced enhancement at splenius capitis in 34 cases, rhomboid in 23 cases, semispinalis cervicis in seven cases, and levator scapulae in three cases. In the non-DHS group, none of those extensor muscles were enhanced. The enhanced pattern was butterfly shaped in 29 cases (85.3%) and linear in five cases (14.7%). All were located at the spinous process attachment at C6 or C7 in the DHS group. In the non-DHS group, seven cases presented an enhanced image of the spinous process, with C5-6 in one case, C6 in five cases, and C7 in one case. CONCLUSIONS In DHS, contrast-enhanced MRI showed intramuscular enhancement of the cervical extensor muscles, which was not present in non-DHS cases. The enhanced muscles included the splenius capitis muscle in all cases. These findings may be useful for developing a strategy for DHS treatment.
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Affiliation(s)
- Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
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Sano H, Endo K, Sawaji Y, Aihara T, Suzuki H, Yamauchi T, Ishiyama M, Osada T, Ueno R, Masaoka T, Nishimura H, Yamamoto K. A novel diagnostic examination for dropped head syndrome (DHS) (Prone position cervical extension test; DHS test). J Orthop Sci 2023:S0949-2658(23)00262-2. [PMID: 37845161 DOI: 10.1016/j.jos.2023.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 08/18/2023] [Accepted: 09/07/2023] [Indexed: 10/18/2023]
Abstract
BACKGROUND Dropped head syndrome (DHS) is followed by severe cervical extension muscle weakness that results in chin-on chest deformity. However, maintaining a neutral cervical position can be temporarily possible, and the diagnosis of DHS might sometimes be difficult. The purpose of the present study is to examine a novel clinical test (DHS test) as the diagnostic utility for objective evaluation that focuses on cervical extension condition in the prone position. METHODS One hundred subjects were diagnosed with isolated neck extensor myopathy (INEM)-DHS at our hospital (17 men and 83 women, mean age 75.0 ± 8.5 years), and 62 subjects were enrolled as age-matched controls. The DHS test consisted of three examinations; the first was "Ceiling gazing test" in standing position, the second was horizontal gazing in "Sphinx prone position test", and the third was horizontal gazing in "Hands and knees prone position test". We investigated the sensitivity and specificity of the DHS test for DHS. RESULTS The patients showing positive in the INEM-DHS group were 63/100 in Ceiling gaze test, 73/100 in the Sphinx prone position test, and 91/100 in the Hands and knees prone position test. In the control group, 0/62 patients presented positive in the Ceiling gaze test, 4/62 in the Sphinx prone position test, and 0/62 in the Hands and knees prone position test. Sensitivity and specificity of the DHS test were 63.0%/100%, 73.0%/93.5%, and 91.0%/100% in the Ceiling gaze test, Sphinx position prone position test, and Hands and knees prone position test, respectively. CONCLUSION The prone position cervical extension test (DHS test) would be useful as a novel objective diagnostic tool for INEM-DHS.
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Affiliation(s)
- Hiroki Sano
- Department of Rehabilitation Center, Tokyo Medical University, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Japan.
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Japan
| | - Takahito Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Japan
| | - Tomoyasu Yamauchi
- Department of Rehabilitation Center, Tokyo Medical University, Japan
| | - Masahiro Ishiyama
- Department of Rehabilitation Center, Tokyo Medical University, Japan
| | - Takuya Osada
- Department of Rehabilitation Center, Tokyo Medical University, Japan
| | - Ryuuichi Ueno
- Department of Rehabilitation Center, Tokyo Medical University, Japan
| | - Toshinori Masaoka
- Department of Rehabilitation Center, Tokyo Medical University, Japan; Department of Orthopedic Surgery, Tokyo Medical University, Japan
| | | | - Kengo Yamamoto
- Department of Rehabilitation Center, Tokyo Medical University, Japan
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Yamaura K, Nelson AL, Nishimura H, Rutledge JC, Ravuri SK, Bahney C, Philippon MJ, Huard J. The effects of losartan or angiotensin II receptor antagonists on cartilage: a systematic review. Osteoarthritis Cartilage 2023; 31:435-446. [PMID: 36586717 DOI: 10.1016/j.joca.2022.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/06/2022] [Accepted: 11/28/2022] [Indexed: 12/29/2022]
Abstract
OBJECTIVE The aim of this study is to analyze the latest evidence on the effects of losartan or Ang II receptor antagonists on cartilage repair, with a focus on their clinical relevance. DESIGN The PubMed, Embase, and Cochrane Library databases were searched up to November 12th 2021 to evaluate the effects of losartan or Ang II receptor antagonists on cartilage repair in in vitro studies and in vivo animal studies. Study design, sample characteristics, treatment type, duration, and outcomes were analyzed. The risk of bias and the quality of the eligible studies were assessed using the Systematic Review Centre for Laboratory Animal Experimentation (SYRCLE) risk of bias assessment tool and Collaborative Approach to Meta-Analysis and Review of Animal Data from Experimental Studies (CAMARADES). RESULTS A total of 12 studies were included in this systematic review. Of the 12 eligible studies, two studies were in vitro human studies, three studies were in vitro animal studies, one study was an in vitro human and animal study, and six studies were in vivo animal studies. The risk bias and quality assessments were predominantly classified as moderate. Since meta-analysis was difficult due to differences in treatment type, dosage, route of administration, and method of outcome assessment among the eligible studies, qualitative evaluation was conducted for each study. CONCLUSIONS Both in vitro and in vivo studies provide evidence to demonstrate beneficial effects of Ang II receptor antagonists on osteoarthritis and cartilage defect models across animal species.
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Affiliation(s)
- K Yamaura
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, USA; Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.
| | - A L Nelson
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, USA.
| | - H Nishimura
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, USA; Department of Orthopaedic Surgery, University Hospital of Occupational and Environmental Health, Fukuoka, Japan.
| | - J C Rutledge
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, USA.
| | - S K Ravuri
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, USA.
| | - C Bahney
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, USA; The Orthopaedic Trauma Institute, University of California, San Francisco (UCSF), San Francisco, CA, USA.
| | - M J Philippon
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, USA; The Steadman Clinic, Vail, CO, USA.
| | - J Huard
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, USA.
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Nishimura H, Endo K, Sawaji Y, Suzuki H, Aihara T, Murata K, Konishi T, Yamauchi H, Ueshima T, Yamamoto K. Global Sagittal Spinal Compensation for Dropped Head Alignment. Spine (Phila Pa 1976) 2023; 48:421-427. [PMID: 36728796 DOI: 10.1097/brs.0000000000004562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/14/2022] [Indexed: 02/03/2023]
Abstract
STUDY DESIGN This is a retrospective radiographic study of a consecutive series of cases in patients with dropped head syndrome (DHS) at a single tertiary referral center. OBJECTIVE The aim was to clarify the compensation among parameters of spinal sagittal alignment in patients with DHS. SUMMARY OF BACKGROUND DATA The treatment strategy for DHS should vary according to the types of global sagittal spinal alignment. However, theoretical evidence in consideration of spinal sagittal compensation against the dropped head condition is lacking. MATERIALS AND METHODS One hundred sixteen patients diagnosed with isolated neck extensor myopathy were enrolled. Radiographic measurements were made, including parameters of spinal sagittal alignment. The patients were divided into three groups according to sagittal spinal balance: C7SVA (sagittal vertical axis) ≥ +50 mm (P-DHS; positive imbalanced DHS), -50 mm ≤C7SVA <+50 mm (B-DHS; balanced DHS), and C7SVA <-50 mm (N-DHS; negative imbalanced DHS). Correlations among the various spinal parameters were analyzed. RESULTS Among all types of DHS, there was no correlation between C2-C7 angle (C2-C7A) and T1 slope. In B-DHS, other correlations among the adjacent spinal segments were maintained. In N-DHS, there was no correlation between C2-C7A and TK, and in P-DHS, there was also no correlation between TK and lumbar lordosis. CONCLUSIONS The loss of compensation at the cervicothoracic junction was observed in all DHS types. B-DHS showed decompensation only at the cervicothoracic junction. N-DHS presented additional decompensation of the thoracic spine, and P-DHS showed decompensation between the thoracic and lumbar spine. Evaluation of global sagittal spinal balance is important for determining global spinal compensation associated with DHS and when considering treatment strategy.
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Affiliation(s)
- Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
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Inoue G, Miyagi M, Saito W, Shirasawa E, Uchida K, Hosogane N, Watanabe K, Katsumi K, Kaito T, Yamashita T, Fujiwara H, Nagamoto Y, Nojiri K, Suzuki S, Okada E, Ueda S, Hikata T, Shiono Y, Watanabe K, Terai H, Tamai K, Matsuoka Y, Suzuki H, Nishimura H, Tagami A, Yamada S, Adachi S, Ohtori S, Furuya T, Orita S, Inage K, Yoshii T, Ushio S, Funao H, Isogai N, Harimaya K, Okada S, Kawaguchi K, Yokoyama N, Oishi H, Doi T, Kiyasu K, Imagama S, Ando K, Kobayashi K, Sakai D, Tanaka M, Kimura A, Inoue H, Nakano A, Ikegami S, Shimizu M, Futatsugi T, Kakutani K, Yurube T, Nakanishi K, Oshima M, Uei H, Aoki Y, Takahata M, Iwata A, Endo H, Seki S, Murakami H, Kato S, Yoshioka K, Hongo M, Abe T, Tsukanishi T, Takaso M, Ishii K. Effect of low body mass index on clinical recovery after fusion surgery for osteoporotic vertebral fracture: A retrospective, multicenter study of 237 cases. Medicine (Baltimore) 2022; 101:e32330. [PMID: 36595994 PMCID: PMC9803438 DOI: 10.1097/md.0000000000032330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
A retrospective multicenter study. Body mass index (BMI) is recognized as an important determinant of osteoporosis and spinal postoperative outcomes; however, the specific impact of BMI on surgery for osteoporotic vertebral fractures (OVFs) remains inconclusive. This retrospective multicenter study investigated the impact of BMI on clinical outcomes following fusion surgery for OVFs. 237 OVF patients (mean age, 74.3 years; 48 men and 189 women) with neurological symptoms who underwent spinal fusion were included in this study. Patients were grouped by World Health Organization BMI categories: low BMI (<18.5 kg/m2), normal BMI (≥18.5 and <25 kg/m2), and high BMI (≥25 kg/m2). Patients' backgrounds, surgical method, radiological findings, pain measurements, activities of daily living (ADL), and postoperative complications were compared after a mean follow-up period of 4 years. As results, the proportion of patients able to walk independently was significantly smaller in the low BMI group (75.0%) compared with the normal BMI group (89.9%; P = .01) and the high BMI group (94.3%; P = .04). Improvement in the visual analogue scale for leg pain was significantly less in the low BMI group than the high BMI group (26.7 vs 42.8 mm; P = .046). Radiological evaluation, the Frankel classification, and postoperative complications were not significantly different among all 3 groups. Improvement of pain intensity and ADL in the high BMI group was equivalent or non-significantly better for some outcome measures compared with the normal BMI group. Leg pain and independent walking ability after fusion surgery for patients with OVFs improved less in the low versus the high BMI group. Surgeons may want to carefully evaluate at risk low BMI patients before fusion surgery for OVF because poor clinical results may occur.
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Affiliation(s)
- Gen Inoue
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara City, Kanagawa, Japan
- * Correspondence: Gen Inoue, Department of Orthopaedic Surgery, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-ku, Sagamihara, Kanagawa 252-0374, Japan (e-mail: )
| | - Masayuki Miyagi
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara City, Kanagawa, Japan
| | - Wataru Saito
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara City, Kanagawa, Japan
| | - Eiki Shirasawa
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara City, Kanagawa, Japan
| | - Kentaro Uchida
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara City, Kanagawa, Japan
- Shonan University of Medical Sciences Research Institute, Chigasaki City, Kanagawa, Japan
| | - Naobumi Hosogane
- Department of Orthopaedic Surgery, Kyorin University, Mitaka City, Tokyo, Japan
| | - Kei Watanabe
- Department of Orthopaedic Surgery, Niigata University, Chuo-ku, Niigata City, Japan
| | - Keiichi Katsumi
- Department of Orthopaedic Surgery, Niigata University, Chuo-ku, Niigata City, Japan
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University, Suita City, Osaka, Japan
| | - Tomoya Yamashita
- Department of Orthopaedic Surgery, Osaka University, Suita City, Osaka, Japan
| | - Hiroyasu Fujiwara
- Department of Orthopaedic Surgery, Osaka University, Suita City, Osaka, Japan
| | - Yukitaka Nagamoto
- Department of Orthopaedic Surgery, Osaka University, Suita City, Osaka, Japan
| | - Kenya Nojiri
- Department of Orthopaedic Surgery, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Satoshi Suzuki
- Department of Orthopaedic Surgery, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Eijiro Okada
- Department of Orthopaedic Surgery, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Seiji Ueda
- Department of Orthopaedic Surgery, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Tomohiro Hikata
- Department of Orthopaedic Surgery, Spine Center, Kitasato Institute Hospital, Minato-ku, Tokyo, Japan
| | - Yuta Shiono
- Department of Orthopaedic Surgery, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Kota Watanabe
- Department of Orthopaedic Surgery, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Hidetomi Terai
- Department of Orthopaedic Surgery, Osaka City University, Abeno-ku, Osaka City, Japan
| | - Koji Tamai
- Department of Orthopaedic Surgery, Osaka City University, Abeno-ku, Osaka City, Japan
| | - Yuji Matsuoka
- Department of Orthopaedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopaedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopaedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Atsushi Tagami
- Department of Orthopaedic Surgery, Nagasaki University, Nagasaki City, Japan
| | - Shuta Yamada
- Department of Orthopaedic Surgery, Nagasaki University, Nagasaki City, Japan
| | - Shinji Adachi
- Department of Orthopaedic Surgery, Nagasaki University, Nagasaki City, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Chiba University, Chuo-ku, Chiba City, Japan
| | - Takeo Furuya
- Department of Orthopaedic Surgery, Chiba University, Chuo-ku, Chiba City, Japan
| | - Sumihisa Orita
- Department of Orthopaedic Surgery, Chiba University, Chuo-ku, Chiba City, Japan
- Center for Medical Engineering, Chiba University, Inage-ku, Chiba City, Japan
| | - Kazuhide Inage
- Department of Orthopaedic Surgery, Chiba University, Chuo-ku, Chiba City, Japan
| | - Toshitaka Yoshii
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Shuta Ushio
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Haruki Funao
- Department of Orthopaedic Surgery, International University of Health and Welfare, Narita City, Chiba, Japan
- Spine and Spinal cord Center, International University of Health and Welfare Mita Hospital, Minato-ku, Tokyo, Japan
| | - Norihiro Isogai
- Spine and Spinal cord Center, International University of Health and Welfare Mita Hospital, Minato-ku, Tokyo, Japan
| | - Katsumi Harimaya
- Department of Orthopaedic Surgery, Kyushu University, Higashi-ku, Fukuoka City, Japan
| | - Seiji Okada
- Department of Orthopaedic Surgery, Kyushu University, Higashi-ku, Fukuoka City, Japan
| | - Kenichi Kawaguchi
- Department of Orthopaedic Surgery, Kyushu University, Higashi-ku, Fukuoka City, Japan
| | - Nobuhiko Yokoyama
- Department of Orthopaedic Surgery, Kyushu University, Higashi-ku, Fukuoka City, Japan
| | - Hidekazu Oishi
- Department of Orthopaedic Surgery, Kyushu University, Higashi-ku, Fukuoka City, Japan
| | - Toshio Doi
- Department of Orthopaedic Surgery, Kyushu University, Higashi-ku, Fukuoka City, Japan
| | - Katsuhito Kiyasu
- Department of Orthopaedic Surgery, Kochi University, Oko-cho Kohasu, Nankoku City, Kochi, Japan
| | - Shiro Imagama
- Department of Orthopaedic Surgery, Nagoya University, Showa-ku, Nagoya City, Aichi, Japan
| | - Kei Ando
- Department of Orthopaedic Surgery, Nagoya University, Showa-ku, Nagoya City, Aichi, Japan
| | - Kazuyoshi Kobayashi
- Department of Orthopaedic Surgery, Nagoya University, Showa-ku, Nagoya City, Aichi, Japan
| | - Daisuke Sakai
- Department of Orthopaedic Surgery, Tokai University, Isehara City, Kanagawa, Japan
| | - Masahiro Tanaka
- Department of Orthopaedic Surgery, Tokai University, Isehara City, Kanagawa, Japan
| | - Atsushi Kimura
- Department of Orthopaedic Surgery, Jichi Medical University, Shimotsuke City, Tochigi, Japan
| | - Hirokazu Inoue
- Department of Orthopaedic Surgery, Jichi Medical University, Shimotsuke City, Tochigi, Japan
| | - Atsushi Nakano
- Department of Orthopaedic Surgery, Osaka Medical College, Takatsuki City, Osaka, Japan
| | - Shota Ikegami
- Department of Orthopaedic Surgery, Shinshu University, Matsumoto City, Nagano, Japan
| | - Masayuki Shimizu
- Department of Orthopaedic Surgery, Shinshu University, Matsumoto City, Nagano, Japan
| | - Toshimasa Futatsugi
- Department of Orthopaedic Surgery, Shinshu University, Matsumoto City, Nagano, Japan
| | - Kenichiro Kakutani
- Department of Orthopaedic Surgery, Kobe University, Chuou-ku, Kobe City, Hyogo, Japan
| | - Takashi Yurube
- Department of Orthopaedic Surgery, Kobe University, Chuou-ku, Kobe City, Hyogo, Japan
| | - Kazuyoshi Nakanishi
- Department of Orthopaedic Surgery, Nihon University Itabashi Hospital, Itabashi-ku, Tokyo, Japan
| | - Masashi Oshima
- Department of Orthopaedic Surgery, Nihon University Itabashi Hospital, Itabashi-ku, Tokyo, Japan
| | - Hiroshi Uei
- Department of Orthopaedic Surgery, Nihon University Itabashi Hospital, Itabashi-ku, Tokyo, Japan
| | - Yasuchika Aoki
- Department of Orthopaedic Surgery, Eastern Chiba Medical Center, Togane City, Chiba, Japan
| | - Masahiko Takahata
- Department of Orthopaedic Surgery, Hokkaido University, Kita-ku, Sapporo City, Hokkaido, Japan
| | - Akira Iwata
- Department of Orthopaedic Surgery, Hokkaido University, Kita-ku, Sapporo City, Hokkaido, Japan
| | - Hirooki Endo
- Department of Orthopaedic Surgery, Iwate Medical University, Yahaba-cho, Iwate, Japan
| | - Shoji Seki
- Department of Orthopaedic Surgery, University of Toyama, Toyama City, Japan
| | - Hideki Murakami
- Department of Orthopaedic Surgery, Nagoya City University, Mizuho-ku, Nagoya City, Aichi, Japan
| | - Satoshi Kato
- Department of Orthopaedic Surgery, Kanazawa University, Kanazawa City, Japan
| | - Katsuhito Yoshioka
- Department of Orthopaedic Surgery, Kanazawa University, Kanazawa City, Japan
| | - Michio Hongo
- Department of Orthopaedic Surgery, Akita University, Akita City, Japan
| | - Tetsuya Abe
- Department of Orthopaedic Surgery, University of Tsukuba, Tsukuba City, Ibaraki, Japan
| | - Toshinori Tsukanishi
- Department of Orthopaedic Surgery, University of Tsukuba, Tsukuba City, Ibaraki, Japan
| | - Masashi Takaso
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara City, Kanagawa, Japan
| | - Ken Ishii
- Department of Orthopaedic Surgery, International University of Health and Welfare, Narita City, Chiba, Japan
- Spine and Spinal cord Center, International University of Health and Welfare Mita Hospital, Minato-ku, Tokyo, Japan
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7
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Yamamoto T, Okada E, Michikawa T, Yoshii T, Yamada T, Watanabe K, Katsumi K, Hiyama A, Watanabe M, Nakagawa Y, Okada M, Endo T, Shiraishi Y, Takeuchi K, Matsunaga S, Maruo K, Sakai K, Kobayashi S, Ohba T, Wada K, Ohya J, Mori K, Tsushima M, Nishimura H, Tsuji T, Koda M, Okawa A, Yamazaki M, Matsumoto M, Watanabe K. The impact of diabetes mellitus on spinal fracture with diffuse idiopathic skeletal hyperostosis: A multicenter retrospective study. J Orthop Sci 2022; 27:582-587. [PMID: 34162513 DOI: 10.1016/j.jos.2021.03.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/09/2021] [Accepted: 03/03/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Patients with diffuse idiopathic skeletal hyperostosis (DISH) are susceptible to spinal column injuries with neurological deterioration. Previous studies indicated that the prevalence of diabetes mellitus (DM) in patients with DISH was higher than that in patients without DISH. This study investigates the impact of DM on surgical outcomes for spinal fractures in patients with DISH. METHODS We retrospectively evaluated 177 spinal fractures in patients with DISH (132 men and 45 women; mean age, 75 ± 10 years) who underwent surgery from a multicenter database. The subjects were classified into two groups according to the presence of DM. Perioperative complications, neurological status by Frankel grade, mortality rate, and status of surgical site infection (SSI) were compared between the two groups. RESULTS DM was present in 28.2% (50/177) of the patients. The proportion of men was significantly higher in the DM group (DM group: 86.0% vs. non-DM group: 70.1%) (p = 0.03). The overall complication rate was 22.0% in the DM group and 19.7% in the non-DM group (p = 0.60). Poisson regression model revealed that SSI was significantly associated with DM (DM group: 10.0% vs. non-DM group: 2.4%, Relative risk: 4.5) (p = 0.048). Change in neurological status, mortality rate, instrumentation failure, and nonunion were similar between both groups. HbA1c and fasting blood glucose level (SSI group: 7.2% ± 1.2%, 201 ± 67 mg/dL vs. non-SSI group: 6.6% ± 1.1%, 167 ± 47 mg/dL) tended to be higher in patients with SSI; however, there was no significant difference. CONCLUSIONS In spinal fracture in patients with DISH, although DM was an associated factor for SSI with a relative risk of 4.5, DM did not negatively impact neurological recovery. Perioperative glycemic control may be useful for preventing SSI because fasting blood glucose level was high in patients with SSI.
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Affiliation(s)
- Tatsuya Yamamoto
- Dept. of Orthopaedic Surgery, Keio University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Eijiro Okada
- Dept. of Orthopaedic Surgery, Keio University, Tokyo, Japan; Dept. of Orthopaedic Surgery, Saiseikai Central Hospital, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | | | - Toshitaka Yoshii
- Dept. of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Tsuyoshi Yamada
- Dept. of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kei Watanabe
- Dept. of Orthopaedic Surgery, Niigata University Medical and Dental General Hospital, Niigata, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Keiichi Katsumi
- Dept. of Orthopaedic Surgery, Niigata University Medical and Dental General Hospital, Niigata, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Akihiko Hiyama
- Dept. of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Masahiko Watanabe
- Dept. of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Yukihiro Nakagawa
- Dept. of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Motohiro Okada
- Dept. of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Teruaki Endo
- Dept. of Orthopaedic Surgery, Jichi Medical University, Tochigi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Yasuyuki Shiraishi
- Dept. of Orthopaedic Surgery, Jichi Medical University, Tochigi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kazuhiro Takeuchi
- Dept. of Orthopaedic Surgery, National Hospital Organization Okayama Medical Center, Okayama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Shunji Matsunaga
- Dept. of Orthopaedic Surgery, Imakiire General Hospital, Kagoshima, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Keishi Maruo
- Dept. of Orthopaedic Surgery, Hyogo College of Medicine, Hyogo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kenichiro Sakai
- Dept. of Orthopaedic Surgery, Saiseikai Kawaguchi General Hospital, Saitama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Sho Kobayashi
- Dept. of Orthopaedic Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Tetsuro Ohba
- Dept. of Orthopaedic Surgery, University of Yamanashi, Yamanashi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kanichiro Wada
- Dept. of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Aomori, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Junichi Ohya
- Dept. of Orthopaedic Surgery, The University of Tokyo, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kanji Mori
- Dept. of Orthopaedic Surgery, Shiga University of Medical Science, Shiga, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Mikito Tsushima
- Dept. of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Aichi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Hirosuke Nishimura
- Dept. of Orthopaedic Surgery, Tokyo Medical University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Takashi Tsuji
- Dept. of Orthopaedic Surgery, Fujita Health University, Aichi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Masao Koda
- Dept. of Orthopaedic Surgery, University of Tsukuba, Ibaraki, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Atsushi Okawa
- Dept. of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Masashi Yamazaki
- Dept. of Orthopaedic Surgery, University of Tsukuba, Ibaraki, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Morio Matsumoto
- Dept. of Orthopaedic Surgery, Keio University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kota Watanabe
- Dept. of Orthopaedic Surgery, Keio University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan.
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Endo K, Sawaji Y, Aihara T, Suzuki H, Murata K, Matsuoka Y, Nishimura H, Takamatsu T, Konishi T, Yamamoto K. Eight cases of sudden-onset dropped head syndrome: patient series. Journal of Neurosurgery: Case Lessons 2021; 2:CASE21177. [PMID: 36059718 PMCID: PMC9435544 DOI: 10.3171/case21177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 08/10/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND
As the proportion of elderly people continues to increase, the number of patients with dropped head syndrome (DHS) also grows. However, the relationship between onset and clinical course of DHS has hardly been studied, particularly, that of sudden-onset DHS has not been reported and remains unclear.
OBSERVATIONS
Sudden-onset DHS was defined as presenting with chin on chest deformity within 3 days from the time of awareness of cervical weakness. Sixty-six patients with DHS visited our facility. Among them, 8 of the total cases (12.1%) had experienced sudden onset DHS (6 females and 2 males; average age: 71.9 ± 10.9 years). Six of 8 cases showed recovery by conservative treatment, whose first interventions were from 0.1 to 12 months, but 3 experienced recurrence. Diffuse spinal kyphotic-type DHS was seen in 2 cases, and both had recurring horizontal gaze disturbance after initial recovery. Two unimproved cases underwent surgery of combined anterior and posterior cervical fixation, and their first interventions were at 5 and 24 months. After surgery, cervical sagittal alignment was improved, and they could walk maintaining horizontal gaze.
LESSONS
Sudden-onset DHS can be expected to have a better outcome, but recurrence is possible in global imbalanced-type DHS.
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Affiliation(s)
- Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takamitsu Konishi
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
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9
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Kobayashi K, Okada E, Yoshii T, Tsushima M, Yamada T, Watanabe K, Katsumi K, Hiyama A, Katoh H, Watanabe M, Nakagawa Y, Okada M, Endo T, Shiraishi Y, Takeuchi K, Matsunaga S, Maruo K, Sakai K, Kobayashi S, Ohba T, Wada K, Ohya J, Mori K, Nishimura H, Tsuji T, Watanabe K, Okawa A, Matsumoto M, Imagama S. Risk factors for delayed diagnosis of spinal fracture associated with diffuse idiopathic skeletal hyperostosis: A nationwide multiinstitution survey. J Orthop Sci 2021; 26:968-973. [PMID: 33334624 DOI: 10.1016/j.jos.2020.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 10/07/2020] [Accepted: 10/09/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Patients with DISH are susceptible to spinal fractures and subsequent neurological impairment, including after minor trauma. However, DISH is often asymptomatic and fractures may have minimal symptoms, which may lead to delayed diagnosis. The purpose of this study was to identify risk factors for delayed diagnosis of spinal fractures in patients with diffuse idiopathic skeletal hyperostosis (DISH). METHODS The subjects were 285 patients with DISH surgically treated at 18 medical centers from 2005 to 2015. Cause of injury, imaging findings, neurological status at the times of injury and first hospital examination, and the time from injury to diagnosis were recorded. A delayed diagnosis was defined as that made >24 h after injury. RESULTS Main causes of injury were minor trauma due to a fall from a standing or sitting position (51%) and high-energy trauma due to a fall from a high place (29%) or a traffic accident (12%). Delayed diagnosis occurred in 115 patients (40%; 35 females, 80 males; mean age 76.0 ± 10.4 years), while 170 (60%; 29 females, 141 males; mean age 74.6 ± 12.8 years) had early diagnosis. Delayed group had a significantly higher rate of minor trauma (n = 73, 63% vs. n = 73, 43%), significantly more Frankel grade E (intact neurological status) cases at the time of injury (n = 79, 69% vs. n = 73, 43%), and greater deterioration of Frankel grade from injury to diagnosis (34% vs. 8%, p < 0.01). In multivariate analysis, a minor trauma fall (OR 2.08; P < 0.05) and Frankel grade E at the time of injury (OR 2.29; P < 0.01) were significantly associated with delayed diagnosis. CONCLUSION In patients with DISH, it is important to keep in mind the possibility of spinal fracture, even in a situation in which patient sustained only minor trauma and shows no neurological deficit. This is because delayed diagnosis of spinal fracture can cause subsequent neurological deterioration.
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Affiliation(s)
- Kazuyoshi Kobayashi
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan; Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan
| | - Eijiro Okada
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan
| | - Toshitaka Yoshii
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan
| | - Mikito Tsushima
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Chubu Rosai Hospital, 1-10-6 Komei, Minato-ku, 455-8530, Aichi, Japan
| | - Tsuyoshi Yamada
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan
| | - Kei Watanabe
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachidori, Chuo-ku, Niigata-shi, 951-8510, Niigata, Japan
| | - Keiichi Katsumi
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachidori, Chuo-ku, Niigata-shi, 951-8510, Niigata, Japan
| | - Akihiko Hiyama
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara-shi, 259-1193, Kanagawa, Japan
| | - Hiroyuki Katoh
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara-shi, 259-1193, Kanagawa, Japan
| | - Masahiko Watanabe
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara-shi, 259-1193, Kanagawa, Japan
| | - Yukihiro Nakagawa
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Wakayama Medical University Kihoku Hospital, 219 Myoji, Katsuragi-cho, Ito-gun, 649-7113, Wakayama, Japan
| | - Motohiro Okada
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Wakayama, Japan
| | - Teruaki Endo
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-shi, 329-0498, Tochigi, Japan
| | - Yasuyuki Shiraishi
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-shi, 329-0498, Tochigi, Japan
| | - Kazuhiro Takeuchi
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, National Hospital Organization Okayama Medical Center, 1711-1 Tamasu, Kita Ward, Okayama, 701-1192, Okayama, Japan
| | - Shunji Matsunaga
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Imakiire General Hospital, 4-16 Shimotatsuocho, 892-8502, Kagoshima, Japan
| | - Keishi Maruo
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopedic Surgery, Hyogo College of Medicine, 1-1 Mukogawacho, Nishinomiya, 663-8501, Hyogo, Japan
| | - Kenichiro Sakai
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Saiseikai Kawaguchi General Hospital, 5 Chome-11-5 Nishikawaguchi, Kawaguchi, 332-8558, Saitama, Japan
| | - Sho Kobayashi
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Hamamatsu University School of Medicine, 1 Chome-20-1 Handayama, Higashi Ward, Hamamatsu, 432-8580, Shizuoka, Japan
| | - Tetsuro Ohba
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, University of Yamanashi, 1110 Shimokato, Chuo-shi, 409-3898, Yamanashi, Japan
| | - Kanichiro Wada
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho Hirosaki, 036-8562, Aomori, Japan
| | - Junichi Ohya
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8655, Tokyo, Japan
| | - Kanji Mori
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, 520-2192, Shiga, Japan
| | - Hirosuke Nishimura
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, 160-8402, Tokyo, Japan
| | - Takashi Tsuji
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Tokyo Medical Center, 2-5-1, Higashigaoka, Meguro-ku, 152-8902, Tokyo, Japan
| | - Kota Watanabe
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan
| | - Atsushi Okawa
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan
| | - Morio Matsumoto
- Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan; Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan
| | - Shiro Imagama
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan; Japanese Organization for the Study for Ossification of Spinal Ligament (JOSL), 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan.
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Aihara T, Kojima A, Urushibara M, Endo K, Sawaji Y, Suzuki H, Matsuoka Y, Nishimura H, Murata K, Konishi T, Yamamoto K. In Reply to the Letter to the Editor Regarding "Long-Term Outcomes Following Lumbar Microendoscopic Decompression for Lumbar Spinal Stenosis with and without Degenerative Spondylolisthesis: Minimum 10-Year Follow-Up". World Neurosurg 2021; 151:326-328. [PMID: 34243658 DOI: 10.1016/j.wneu.2021.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 11/26/2022]
Affiliation(s)
- Takato Aihara
- Department of Orthopedic Surgery, Funabashi Orthopedic Hospital, Chiba; Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan.
| | - Atsushi Kojima
- Department of Orthopedic Surgery, Funabashi Orthopedic Hospital, Chiba
| | - Makoto Urushibara
- Department of Orthopedic Surgery, Funabashi Orthopedic Hospital, Chiba
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takamitsu Konishi
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
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11
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Murata K, Endo K, Aihara T, Suzuki H, Matsuoka Y, Nishimura H, Takamatsu T, Yamamoto K. The impact of sagittal imbalance on walking in patients with lumbar spinal canal stenosis. J Orthop Surg (Hong Kong) 2021; 29:23094990211010522. [PMID: 33926315 DOI: 10.1177/23094990211010522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
PURPOSE Gait and posture disorder severely impedes the quality of life of affected patients with lumbar spinal canal stenosis (LSCS). Despite the major health concern, there is a paucity of literature about the relationships among spatiotemporal gait parameters and spinal sagittal parameters. This is a cross sectional study performed in a single tertiary referral center to determine the relationships among spatiotemporal gait parameters and spinal sagittal parameters in patients with LSCS. METHODS A total of 164 consecutive patients with LSCS, 87 men and 77 women with mean age of 70.7 years, were enrolled. Spatiotemporal gait parameters were studied using a gait analysis system. Spinal sagittal parameters were studied including sagittal vertical axis (SVA), thoracic kyphosis (TK), lumbar lordosis (LL), sacral slope (SS), pelvic inclination (PI), and pelvic tilt (PT) both in the neutral and stepped positions. RESULTS SVA was significantly larger in the stepped position than in the neutral position (neutral position, 72.5 mm; stepped position, 96.8 mm; p = 0.003). Parameters regarding the pelvis exhibited significant differences, which could represent pelvic anteversion in the stepped position. By stepwise multiple regression analysis, the prediction models, containing SVA (neutral) and PT (stepped) for double supporting phase, exhibited statistical significance, and accounted for approximately 50% of the variance. CONCLUSIONS The present study provides statistically established evidence of correlation among spatiotemporal gait parameters and spinal sagittal parameters. Differences between sagittal parameters in neutral and stepped position may stand for the postural control during gait cycle, and increased SVA in neutral position and increased PT in stepped position may correlate with prolonged double supporting phase.
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Affiliation(s)
- Kazuma Murata
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
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Nishimura H, Endo K, Aihara T, Murata K, Suzuki H, Matsuoka Y, Takamatsu T, Maekawa A, Sawaji Y, Tsuji H, Yamamoto K. Risk factors of dysphagia in patients with ossification of the anterior longitudinal ligament. J Orthop Surg (Hong Kong) 2021; 28:2309499020960564. [PMID: 33047666 DOI: 10.1177/2309499020960564] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Cervical ossification of the anterior longitudinal ligament (OALL) occasionally leads to dysphagia by the anterior osteophyte. A recent report explained that the dysphagia after an occipito-cervical fusion is caused by the narrowing of pharyngeal space due to the cranio-cervical malalignment. The purpose of this study was to evaluate the cranio-cervical alignment in patients with OALL complaining of the dysphagia. SUBJECTS AND METHODS The subjects were 11 cases with complaining of dysphagia due to cervical OALL who underwent anterior cervical OALL resection and as control, age-matched 12 cases without dysphagia who have diffuse idiopathic skeletal hyperostosis in cervical spine. All subjects were male, and the mean age was 59.5 ± 9.1 years. The subjects were divided into two groups according to the symptoms of dysphagia (dysphagia, group A; control, group B). The O-C2 angle, C2-C7 angle, and the maximum thickness of OALL and the cranio-cervical alignment (pharyngeal inlet angle; PIA) and swallowing line (S-line) were measured before and after the operation on the lateral cervical radiogram at the sitting position. RESULTS Group A showed significantly large maximum thickness of OALL, small cervical range of motion, small O-C2 angle, large C2-C7 angle, and small PIA. The S-line crossed the anterior apex of cervical osteophyte in group A. After OALL resection, dysphagia had improved, PIA had increased, and the S-line uncrossed the apex of cervical vertebrae in all cases. CONCLUSION The prevalence of dysphagia in patients with cervical OALL was influenced by the thickness of osteophyte, cervical mobility, and cranio-cervical alignment.
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Affiliation(s)
- Hirosuke Nishimura
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Asato Maekawa
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Hanako Tsuji
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
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Abstract
Clonal complex 398 methicillin-resistant Staphylococcus aureus (MRSA) is a typical lineage of livestock-associated MRSA. We report a case of intractable arthritis of the shoulder joint caused by a multidrug-resistant Panton-Valentine leukocidin–positive livestock-associated MRSA clonal complex 398 sequence type 1232 clone in a patient in Japan who had no animal contact.
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Konishi T, Endo K, Aihara T, Suzuki H, Matsuoka Y, Nishimura H, Takamatsu T, Murata K, Kusakabe T, Maekawa A, Sawaji Y, Yamamoto K. Global sagittal spinal alignment at cervical flexion in patients with dropped head syndrome. J Orthop Surg (Hong Kong) 2021; 28:2309499020948266. [PMID: 32856531 DOI: 10.1177/2309499020948266] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE Dropped head syndrome (DHS) is characterized by the passively correctable chin-on-chest deformity. The characteristic feature is emphasized in the cervical flexion position. The purpose of this study was to analyze the influence of cervical flexion on sagittal spinal alignment in patients with DHS. METHODS The study included 15 DHS subjects and 55 cervical spondylosis (CS) subjects as the control group. The following parameters were analyzed: cervical sagittal vertical axis (C-SVA), occipitoaxial angle (O-C2A), C2 slope (C2S), C2-C7 angle (C2-C7A), T1 slope (T1S), sagittal vertical axis, T1-T4 angle (T1-T4A), T5-T8 angle (T5-T8A), T9-T12 angle, lumbar lordosis, sacral slope, and pelvic tilt, in cervical flexion and neutral positions. RESULTS The values of C-SVA, O-C2A, C2S, and T1S were significantly different between CS and DHS at cervical neutral and flexion positions. C2-C7A showed significant difference in cervical neutral position, but the difference disappeared in flexion position. T1-T4A did not present a significant difference, but T5-T8A showed a difference in neutral and flexion positions. CONCLUSIONS Malalignment of DHS extended not only to cervical spine but also to cranio-cervical junction and thoracic spine, except T1-T4. It is known that global sagittal spinal alignment is correlated with adjacent parameters, although in DHS the reciprocal change was lost from cranio-cervical junction to the middle part of thoracic spine at cervical flexion.
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Affiliation(s)
- Takamitsu Konishi
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Takuya Kusakabe
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Asato Maekawa
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, 13112Tokyo Medical University, Tokyo, Japan
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Kusakabe T, Endo K, Sawaji Y, Suzuki H, Nishimura H, Matsuoka Y, Murata K, Takamatsu T, Maekawa A, Aihara T, Yamamoto K. Mode of onset of dropped head syndrome and efficacy of conservative treatment. J Orthop Surg (Hong Kong) 2021; 28:2309499020938882. [PMID: 32638646 DOI: 10.1177/2309499020938882] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE The initial treatment of dropped head syndrome (DHS) is basically nonsurgical, but the mode of onset of DHS and efficacy of conservative treatment have not been fully clarified. METHODS The subjects were 38 DHS patients without neuromuscular disease (11 men and 27 women, average age 74.5 years). Cervical collar, physical therapy, and temporary medication for cervical pain were provided for all DHS patients. The following parameters were measured on lateral global spine standing radiographs: sagittal vertical axis (SVA), cervical sagittal vertical axis, C2-C7 angle, first thoracic slope, thoracic kyphosis, lumbar lordosis, sacral slope, pelvic tilt, and pelvic incidence. According to the mode of onset of DHS, the subjects were classified into acute-onset group (<3 months) and chronic-onset group (≥3 months). RESULTS Acute- and chronic-onset DHS were observed in 20 and 18 patients, respectively. A history of cervical trauma was involved in nine and two cases of acute- and chronic-onset DHS, respectively. Acute-onset DHS included more balanced-SVA (B-SVA: -30 mm <SVA ≤40 mm) than chronic-onset DHS. In conservative cases, the recovery rate was better in acute-onset DHS with B-SVA. In acute-onset DHS treated conservatively, the recovery rate was significantly poor in cervical trauma cases. CONCLUSIONS Acute-onset DHS includes more balanced SVA and a history of cervical trauma, while acute-onset DHS without a history of cervical trauma has better prognosis by conservative treatment. Surgical indications for DHS should be carefully determined, and sufficient conservative treatment is essential.
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Affiliation(s)
- Takuya Kusakabe
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Asato Maekawa
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
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Murata K, Endo K, Aihara T, Matsuoka Y, Nishimura H, Suzuki H, Sawaji Y, Yamamoto K, Fukami S, Tanigawa M, Matsubayashi J, Nagao T, Imai R. Salvage carbon ion radiotherapy for recurrent solitary fibrous tumor: A case report and literature review. J Orthop Surg (Hong Kong) 2020; 28:2309499019896099. [PMID: 32101079 DOI: 10.1177/2309499019896099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Malignant solitary fibrous tumor (MSFT) arising from the spinal cord is extremely rare and poorly understood mesenchymal neoplasms: only a few MSFT in the spinal canal has been described. We describe the clinical course of the patient with MSFT arising from the thoracic spinal cord. CASE REPORT We describe the clinical course of the patient and the radiological and pathological findings of the tumor. The tumor had been resected by microscopic posterior approach and video-assisted thoracic surgery, but local recurrence was observed by MRI at 1-year follow-up period. No metastatic lesion was confirmed. Then, carbon ion radiotherapy (CIRT) was administered to the recurrent lesion. Local suppression has been observed for 40 months after irradiation. CONCLUSION Dumbbell-shaped MSFT arising from thoracic spinal cord is a highly unusual presentation. CIRT might be effective for treatment of recurrent tumors.
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Affiliation(s)
- Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Shinjiro Fukami
- Department of Neurosurgery, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Maki Tanigawa
- Department of Anatomic Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Jun Matsubayashi
- Department of Anatomic Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Reiko Imai
- Division of Radiation Oncology, QST Hospital, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
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Murata K, Endo K, Aihara T, Suzuki H, Sawaji Y, Matsuoka Y, Nishimura H, Takamatsu T, Konishi T, Maekawa A, Yamauchi H, Kanazawa K, Endo H, Tsuji H, Inoue S, Fukushima N, Kikuchi H, Sato H, Yamamoto K. Artificial intelligence for the detection of vertebral fractures on plain spinal radiography. Sci Rep 2020; 10:20031. [PMID: 33208824 PMCID: PMC7674499 DOI: 10.1038/s41598-020-76866-w] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 10/29/2020] [Indexed: 12/26/2022] Open
Abstract
Vertebral fractures (VFs) cause serious problems, such as substantial functional loss and a high mortality rate, and a delayed diagnosis may further worsen the prognosis. Plain thoracolumbar radiography (PTLR) is an essential method for the evaluation of VFs. Therefore, minimizing the diagnostic errors of VFs on PTLR is crucial. Image identification based on a deep convolutional neural network (DCNN) has been recognized to be potentially effective as a diagnostic strategy; however, the accuracy for detecting VFs has not been fully investigated. A DCNN was trained with PTLR images of 300 patients (150 patients with and 150 without VFs). The accuracy, sensitivity, and specificity of diagnosis of the model were calculated and compared with those of orthopedic residents, orthopedic surgeons, and spine surgeons. The DCNN achieved accuracy, sensitivity, and specificity rates of 86.0% [95% confidence interval (CI) 82.0-90.0%], 84.7% (95% CI 78.8-90.5%), and 87.3% (95% CI 81.9-92.7%), respectively. Both the accuracy and sensitivity of the model were suggested to be noninferior to those of orthopedic surgeons. The DCNN can assist clinicians in the early identification of VFs and in managing patients, to prevent further invasive interventions and a decreased quality of life.
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Affiliation(s)
- Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takamitsu Konishi
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Asato Maekawa
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hideya Yamauchi
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Kei Kanazawa
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hiroo Endo
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hanako Tsuji
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Shigeru Inoue
- Department of Preventive Medicine and Public Health, Tokyo Medical University, Tokyo, Japan
| | - Noritoshi Fukushima
- Department of Preventive Medicine and Public Health, Tokyo Medical University, Tokyo, Japan
| | - Hiroyuki Kikuchi
- Department of Preventive Medicine and Public Health, Tokyo Medical University, Tokyo, Japan
| | - Hiroki Sato
- Department of Preventive Medicine and Public Health, Tokyo Medical University, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
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Ohtake H, Ishii J, Nishimura H, Kawai H, Muramatsu T, Harada M, Motoyama S, Watanabe E, Ozaki Y, Iwata M. Prospective validation of 0-hour/1-hour algorithm using high-sensitivity cardiac troponin I in Japanese patients presenting to emergency department. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The diagnostic performance of 0-hour/1-hour algorithm using high-sensitivity cardiac troponin I (hsTnI) for non-ST-segment elevation myocardial infarction (NSTEMI) has not been evaluated in an Asian population.
Purpose
We aimed to prospectively validate the 0-hour/1-hour algorithm using hsTnI in a Japanese population.
Method
We enrolled 754 Japanese patients (mean age of 70 years, 395 men) presenting to our emergency department with symptoms suggestive of NSTEMI. The hsTnI concentration was measured using the Siemens ADVIA Centaur hsTnI assay at presentation and after 1 hour. Patients were divided into three groups according to the algorithm: hsTnI below 3 ng/L (only applicable if chest pain onset >3 hours) or below 6 ng/L and delta 1 hour below 3 ng/L were the “rule-out” group; hsTnI at least 120 ng/L or delta 1 hour at least 12 ng/L were in the “rule-in” group; the remaining patients were classified as the “observe” group. Based on the Fourth Universal Definition of Myocardial Infarction, the final diagnosis was adjudicated by 2 independent cardiologists using all available information, including coronary angiography, coronary computed tomography, and follow-up data. Safety of rule-out was quantified by the negative predictive value (NPV) for NSTEMI, accuracy of rule-in by the positive predictive value (PPV), and overall efficacy by the proportion of patients triaged towards rule-out or rule-in within 1 hour.
Results
Prevalence of NSTEMI was 6.5%. The safety of rule-out (NPV 100%), accuracy of rule-in (PPV 26%), and overall efficacy (54%) were shown in Figure.
Conclusion
The 0-hour/1-hour algorithm using hsTnI is very safe and effective in triaging Japanese patients with suspected NSTEMI.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- H Ohtake
- Fujita Health University, Toyoake, Japan
| | - J Ishii
- Fujita Health University, Toyoake, Japan
| | | | - H Kawai
- Fujita Health University, Toyoake, Japan
| | | | - M Harada
- Fujita Health University, Toyoake, Japan
| | - S Motoyama
- Fujita Health University, Toyoake, Japan
| | - E Watanabe
- Fujita Health University, Toyoake, Japan
| | - Y Ozaki
- Fujita Health University, Toyoake, Japan
| | - M Iwata
- Fujita Health University, Toyoake, Japan
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Senoo K, Nakata M, Teramukai S, Yamamoto T, Nishimura H, Matoba S. Gender differences in patterns of relationship between body mass index and AF incidence. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Obesity is reportedly associated with the new incidence of atrial fibrillation (AF). However, gender differences in patterns of relationship between body mass index (BMI) and the risk of AF are unknown.
Methods
We analyzed 21,382 middle-aged Japanese subjects (10923 men, 10459 women) without AF from a cohort of employees undergoing annual health examinations, with a follow-up period of 4.8±3.7 years. We examined the relationship between BMI at baseline to AF incidence in unadjusted and adjusted analyses. This relationship was also studied using linear and quadratic models.
Results
AF had developed in 137 subjects (119 men; mean age, 54.4±8.2 years; incidence, 2.19 and 0.38 per 1000 person-years in men and women, respectively). In multivariable Cox proportional-hazard models, increasing age (hazard ratio [HR], 2.72 per year; 95% CI, 2.22 to 3.33; P<0.001), male gender (HR, 3.28; 95% CI, 1.86 to 5.76; P<0.001) and BMI (HR, 1.08; 95% CI, 1.02 to 1.15; P=0.007) were associated with the new incidence of AF in all cohorts. The shape of the BMI-incident AF relationship showed a linear association in women and a J-shaped association in men. (Figure) In particular, a U-shaped relationship was observed in young men aged 40–49, with increased risk among those with higher BMI and with very low BMI. In analyses adjusted for comorbidities and risk factors for CV disease, the U-shaped AF incidence versus BMI curves were not attenuated, suggesting that other genetic or congenital factors may mediate this relationship.
Conclusion
Our results indicate that the shape of the BMI-incident AF relation differs by sex and in particular a U-shaped relationship was observed in young men.
Patterns of relation among BMI and AF
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Senoo
- Kyoto Prefectural University of Medicine, Department of Cardiac Arrhythmia Research and Innovation, Kyoto, Japan
| | - M Nakata
- Kyoto Prefectural University of Medicine, Department of Biostatistics, Kyoto, Japan
| | - S Teramukai
- Kyoto Prefectural University of Medicine, Department of Biostatistics, Kyoto, Japan
| | - T Yamamoto
- Medical Corporation Soukenkai, Nishimura Clinic, Kyoto, Japan
| | - H Nishimura
- Medical Corporation Soukenkai, Nishimura Clinic, Kyoto, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Department of Cardiovascular medicine, Kyoto, Japan
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20
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Ishii J, Takahashi H, Nishimura H, Fujiwara W, Ohta M, Kawai H, Muramatsu T, Harada M, Yamada A, Naruse H, Motoyama S, Watanabe E, Izawa H, Ozaki Y. Circulating presepsin (soluble CD14 subtype) as a novel marker of mortality in patients treated at medical cardiac intensive care units. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Presepsin, a subtype of soluble CD14, is an inflammatory marker, which largely reflects monocyte activation. The association between presepsin levels and mortality in patients treated at medical cardiac intensive care units (CICUs) remains poorly known.
Objective
We aimed to understand the prognostic value of presepsin levels on admission to medical CICUs for mortality.
Methods
We prospectively studied 1636 heterogeneous patients (median age; 71 years) treated at medical (non-surgical) CICUs. Patients with stage 5 chronic kidney disease (estimated glomerular filtration rate [eGFR] <15 mL/min/1.73 m2) were excluded. Acute coronary syndrome was present in 46% of the patients, and acute decompensated heart failure in 36%. Upon admission, baseline plasma presepsin levels were measured. The primary endpoint was all-cause death.
Results
During a mean follow-up period of 44.6 months after admission, there were 323 (19.7%) deaths. Patients who died were older (median: 75 vs. 71 years, P<0.0001); had higher levels of presepsin (194 vs. 110 pg/mL, P<0.0001), B-type natriuretic peptide (BNP: 520 vs. 144 pg/mL, P<0.0001), high-sensitivity C-reactive protein (hsCRP: 4.7 vs. 2.0 mg/L, P<0.0001), and sequential organ failure assessment (SOFA) score (3 vs. 2, P<0.0001); and had lower levels of eGFR (55 vs. 69 mL/min/1.73m2, P<0.0001) and left ventricular ejection fraction (46% vs. 52%, P<0.0001) than those of the survivors. Multivariate Cox regression analyses revealed presepsin levels as independent predictors of all-cause deaths when assessed as either continuous variables (relative risk [RR] 3.33 per 10-fold increment; P<0.0001) or variables categorized according to quartiles (RR quartile 4 vs. 1, 3.60; P<0.0001). Quartiles of presepsin levels were significantly (P<0.0001) associated with increased risk of mortality (Figure). Adding presepsin levels to a baseline model that included established risk factors, BNP, and hsCRP further enhanced reclassification (P=0.009) and discrimination (P=0.0008) beyond that of the baseline model alone.
Conclusions
Circulating concentration of presepsin on admission may be a potent and independent predictor of mortality, and it may improve the risk stratification of patients admitted at medical CICUs.
Presepsin quartiles and mortality
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- J Ishii
- Dept of Joint Research Laboratory of Clinical Medicine, Fujita Health University School of Medicine, Toyoake, Japan
| | - H Takahashi
- Division of Statistics, Fujita Health University School of Medicine, Toyoake, Japan
| | - H Nishimura
- Dept of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - W Fujiwara
- Dept of Cardiology, Banbuntane Hotokukai Hospital, Nagoya, Japan
| | - M Ohta
- Dept of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - H Kawai
- Dept of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - T Muramatsu
- Dept of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - M Harada
- Dept of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - A Yamada
- Dept of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - H Naruse
- Dept of Joint Research Laboratory of Clinical Medicine, Fujita Health University School of Medicine, Toyoake, Japan
| | - S Motoyama
- Dept of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - E Watanabe
- Dept of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - H Izawa
- Dept of Cardiology, Banbuntane Hotokukai Hospital, Nagoya, Japan
| | - Y Ozaki
- Dept of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
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Hosogane N, Nojiri K, Suzuki S, Funao H, Okada E, Isogai N, Ueda S, Hikata T, Shiono Y, Watanabe K, Watanabe K, Kaito T, Yamashita T, Fujiwara H, Nagamoto Y, Terai H, Tamai K, Matsuoka Y, Suzuki H, Nishimura H, Tagami A, Yamada S, Adachi S, Ohtori S, Orita S, Furuya T, Yoshii T, Ushio S, Inoue G, Miyagi M, Saito W, Imagama S, Ando K, Sakai D, Nukaga T, Kiyasu K, Kimura A, Inoue H, Nakano A, Harimaya K, Kawaguchi K, Yokoyama N, Oishi H, Doi T, Ikegami S, Shimizu M, Futatsugi T, Kakutani K, Yurube T, Oshima M, Uei H, Aoki Y, Takahata M, Iwata A, Seki S, Murakami H, Yoshioka K, Endo H, Hongo M, Nakanishi K, Abe T, Tsukanishi T, Ishii K. Reply to the Editor: Surgical Treatment of Osteoporotic Vertebral Fracture with Neurological Deficit-A Nationwide Multicenter Study in Japan. Spine Surg Relat Res 2020; 4:292-293. [PMID: 32865540 PMCID: PMC7447343 DOI: 10.22603/ssrr.2020-0033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 03/04/2020] [Indexed: 01/20/2023] Open
Affiliation(s)
- Naobumi Hosogane
- Department of Orthopedic Surgery, Kyorin University, Tokyo, Japan.,Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kenya Nojiri
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Suzuki
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Haruki Funao
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.,Department of Orthopedic Surgery, International University of Health and Welfare, Tokyo, Japan
| | - Eijiro Okada
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Norihiro Isogai
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.,Department of Orthopedic Surgery, International University of Health and Welfare, Tokyo, Japan
| | - Seiji Ueda
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Tomohiro Hikata
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Yuta Shiono
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kota Watanabe
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kei Watanabe
- Department of Orthopedic Surgery, Niigata University, Niigata, Japan
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tomoya Yamashita
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hiroyasu Fujiwara
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yukitaka Nagamoto
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hidetomi Terai
- Department of Orthopedic Surgery, Osaka City University, Osaka, Japan
| | - Koji Tamai
- Department of Orthopedic Surgery, Osaka City University, Osaka, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Tagami
- Department of Orthopedic Surgery, Nagasaki University, Nagasaki, Japan
| | - Syuta Yamada
- Department of Orthopedic Surgery, Nagasaki University, Nagasaki, Japan
| | - Shinji Adachi
- Department of Orthopedic Surgery, Nagasaki University, Nagasaki, Japan
| | - Seiji Ohtori
- Department of Orthopedic Surgery, Chiba University, Chiba, Japan
| | - Sumihisa Orita
- Department of Orthopedic Surgery, Chiba University, Chiba, Japan
| | - Takeo Furuya
- Department of Orthopedic Surgery, Chiba University, Chiba, Japan
| | - Toshitaka Yoshii
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shuta Ushio
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Gen Inoue
- Department of Orthopedic Surgery, Kitasato University, Sagamihara, Japan
| | - Masayuki Miyagi
- Department of Orthopedic Surgery, Kitasato University, Sagamihara, Japan
| | - Wataru Saito
- Department of Orthopedic Surgery, Kitasato University, Sagamihara, Japan
| | - Shiro Imagama
- Department of Orthopedic Surgery, Nagoya University, Nagoya, Japan
| | - Kei Ando
- Department of Orthopedic Surgery, Nagoya University, Nagoya, Japan
| | - Daisuke Sakai
- Department of Orthopedic Surgery, Tokai University, Isehara, Japan
| | - Tadashi Nukaga
- Department of Orthopedic Surgery, Tokai University, Isehara, Japan
| | - Katsuhito Kiyasu
- Department of Orthopedic Surgery, Kochi University, Nankoku, Japan
| | - Atsushi Kimura
- Department of Orthopedic Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Hirokazu Inoue
- Department of Orthopedic Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Atsushi Nakano
- Department of Orthopedic Surgery, Osaka Medical College, Takatsuki, Japan
| | - Katsumi Harimaya
- Department of Orthopedic Surgery, Kyushu University, Fukuoka, Japan
| | | | | | - Hidekazu Oishi
- Department of Orthopedic Surgery, Kyushu University, Fukuoka, Japan
| | - Toshio Doi
- Department of Orthopedic Surgery, Kyushu University, Fukuoka, Japan
| | - Shota Ikegami
- Department of Orthopedic Surgery, Shinshu University, Matsumoto, Japan
| | - Masayuki Shimizu
- Department of Orthopedic Surgery, Shinshu University, Matsumoto, Japan
| | | | | | - Takashi Yurube
- Department of Orthopedic Surgery, Kobe University, Kobe, Japan
| | - Masashi Oshima
- Department of Orthopedic Surgery, Nihon University Itabashi Hospital, Tokyo, Japan
| | - Hiroshi Uei
- Department of Orthopedic Surgery, Nihon University Itabashi Hospital, Tokyo, Japan
| | - Yasuchika Aoki
- Department of Orthopedic Surgery, Eastern Chiba Medical Center, Togane, Japan
| | - Masahiko Takahata
- Department of Orthopedic Surgery, Hokkaido University, Sapporo, Japan
| | - Akira Iwata
- Department of Orthopedic Surgery, Hokkaido University, Sapporo, Japan
| | - Shoji Seki
- Department of Orthopedic Surgery, University of Toyama, Toyama, Japan
| | - Hideki Murakami
- Department of Orthopedic Surgery, Kanazawa University, Kanazawa, Japan
| | | | - Hirooki Endo
- Department of Orthopedic Surgery, Iwate Medical University, Morioka, Japan
| | - Michio Hongo
- Department of Orthopedic Surgery, Akita University, Akita, Japan
| | | | - Tetsuya Abe
- Department of Orthopedic Surgery, University of Tsukuba, Tsukuba, Japan
| | | | - Ken Ishii
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.,Department of Orthopedic Surgery, International University of Health and Welfare, Tokyo, Japan
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22
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Kobayashi H, Endo K, Sawaji Y, Matsuoka Y, Nishimura H, Murata K, Takamatsu T, Suzuki H, Aihara T, Yamamoto K. Global sagittal spinal alignment in patients with degenerative low-grade lumbar spondylolisthesis. J Orthop Surg (Hong Kong) 2020; 27:2309499019885190. [PMID: 31714180 DOI: 10.1177/2309499019885190] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE Global sagittal spinal alignment undergoes changes on the basis of sagittal malalignment (trunk inclined forward) in natural degenerative progression. We hypothesized that this change would associate with the disease state of the degenerative lumbar spondylolisthesis (DS). This study aimed to evaluate the global sagittal spinal alignment of low-grade DS by classifying in accordance with sagittal vertical axis (SVA). METHODS The DS group was classified into three types according to the adult spinal deformity classification: type 1, SVA < 40 mm; type 2, 40 mm ≤ SVA < 95 mm; and type 3, 95 mm ≤ SVA. Age and sagittal spinal parameters (thoracic kyphosis, lumbar lordosis (LL), sacral slope (SS), pelvic tilt (PT), and pelvic incidence (PI)) were compared among three types. RESULTS There were statistically significant differences in age, LL, PI, and PT among the three types. In comparison between two types, there was a statistically significant difference between type 1 and type 2 and between type 1 and type 3, but not between type 2 and type 3 in these parameters. PI tended to increase as the type increases. Furthermore, there was significant difference between types 1 and 3. CONCLUSION We evaluated the features of the DS types classified by sagittal alignment. Large PI is one of the risk factors for SVA deterioration of DS. PI may be involved in the onset and progression of DS.
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Affiliation(s)
- Hiroto Kobayashi
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
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23
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Ishikawa Y, Watanabe K, Katsumi K, Ohashi M, Shibuya Y, Izumi T, Hirano T, Endo N, Kaito T, Yamashita T, Fujiwara H, Nagamoto Y, Matsuoka Y, Suzuki H, Nishimura H, Terai H, Tamai K, Tagami A, Yamada S, Adachi S, Yoshii T, Ushio S, Harimaya K, Kawaguchi K, Yokoyama N, Oishi H, Doi T, Kimura A, Inoue H, Inoue G, Miyagi M, Saito W, Nakano A, Sakai D, Nukaga T, Ikegami S, Shimizu M, Futatsugi T, Ohtori S, Furuya T, Orita S, Imagama S, Ando K, Kobayashi K, Kiyasu K, Murakami H, Yoshioka K, Seki S, Hongo M, Kakutani K, Yurube T, Aoki Y, Oshima M, Takahata M, Iwata A, Endo H, Abe T, Tsukanishi T, Nakanishi K, Watanabe K, Hikata T, Suzuki S, Isogai N, Okada E, Funao H, Ueda S, Shiono Y, Nojiri K, Hosogane N, Ishii K. Short- versus long-segment posterior spinal fusion with vertebroplasty for osteoporotic vertebral collapse with neurological impairment in thoracolumbar spine: a multicenter study. BMC Musculoskelet Disord 2020; 21:513. [PMID: 32738900 PMCID: PMC7395972 DOI: 10.1186/s12891-020-03539-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 07/27/2020] [Indexed: 11/10/2022] Open
Abstract
Background Vertebroplasty with posterior spinal fusion (VP + PSF) is one of the most widely accepted surgical techniques for treating osteoporotic vertebral collapse (OVC). Nevertheless, the effect of the extent of fusion on surgical outcomes remains to be established. This study aimed to evaluate the surgical outcomes of short- versus long-segment VP + PSF for OVC with neurological impairment in thoracolumbar spine. Methods We retrospectively collected data from 133 patients (median age, 77 years; 42 men and 91 women) from 27 university hospitals and their affiliated hospitals. We divided patients into two groups: a short-segment fusion group (S group) with 2- or 3-segment fusion (87 patients) and a long-segment fusion group (L group) with 4- through 6-segment fusion (46 patients). Surgical invasion, clinical outcomes, local kyphosis angle (LKA), and complications were evaluated. Results No significant differences between the two groups were observed in terms of neurological recovery, pain scale scores, and complications. Surgical time was shorter and blood loss was less in the S group, whereas LKA at the final follow-up and correction loss were superior in the L group. Conclusion Although less invasiveness and validity of pain and neurological relief are secured by short-segment VP + PSF, surgeons should be cautious regarding correction loss.
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Affiliation(s)
- Yuya Ishikawa
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Kei Watanabe
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan.
| | - Keiichi Katsumi
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Masayuki Ohashi
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Yohei Shibuya
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Tomohiro Izumi
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Toru Hirano
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Naoto Endo
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Tomoya Yamashita
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Hiroyasu Fujiwara
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Yukitaka Nagamoto
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Yuji Matsuoka
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hidekazu Suzuki
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hirosuke Nishimura
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hidetomi Terai
- Department of Orthopaedic Surgery, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Koji Tamai
- Department of Orthopaedic Surgery, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Atsushi Tagami
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, Nagasaki, 852-8501, Japan
| | - Shuta Yamada
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, Nagasaki, 852-8501, Japan
| | - Shinji Adachi
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, Nagasaki, 852-8501, Japan
| | - Toshitaka Yoshii
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Shuta Ushio
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Katsumi Harimaya
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Kenichi Kawaguchi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Nobuhiko Yokoyama
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Hidekazu Oishi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Toshiro Doi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Atsushi Kimura
- Department of Orthopaedic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke City, Tochigi, 329-0498, Japan
| | - Hirokazu Inoue
- Department of Orthopaedic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke City, Tochigi, 329-0498, Japan
| | - Gen Inoue
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Masayuki Miyagi
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Wataru Saito
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Atsushi Nakano
- Department of Orthopedic Surgery, Osaka Medical College, 2-7 Daigakumachi, Takatsuki City, Osaka, 569-8686, Japan
| | - Daisuke Sakai
- Department of Orthopaedic Surgery, Tokai University, 143 Shimokasuya, Isehara City, Kanagawa, 259-1193, Japan
| | - Tadashi Nukaga
- Department of Orthopaedic Surgery, Tokai University, 143 Shimokasuya, Isehara City, Kanagawa, 259-1193, Japan
| | - Shota Ikegami
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Masayuki Shimizu
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Toshimasa Futatsugi
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, 260-8670, Japan
| | - Takeo Furuya
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, 260-8670, Japan
| | - Sumihisa Orita
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, 260-8670, Japan
| | - Shiro Imagama
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Kei Ando
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Kazuyoshi Kobayashi
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Katsuhito Kiyasu
- Department of Orthopaedic Surgery, Kochi University, Oko-cho Kohasu, Nankoku City, Kochi, 783-8505, Japan
| | - Hideki Murakami
- Department of Orthopaedic Surgery, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan.,Department of Orthopaedic Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa City, Ishikawa, 920-8641, Japan
| | - Katsuhito Yoshioka
- Department of Orthopaedic Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa City, Ishikawa, 920-8641, Japan
| | - Shoji Seki
- Department of Orthopaedic Surgery, University of Toyama, 2630 Sugitani, Toyama City, Toyama, 930-0194, Japan
| | - Michio Hongo
- Department of Orthopaedic Surgery, Akita University, 1-1-1 Hondo, Akita City, 010-8543, Japan
| | - Kenichiro Kakutani
- Department of Orthopaedic Surgery, Kobe University, 7-5-1 Kusunoki-cho, chuou-ku, Kobe City, Hyogo, 650-0017, Japan
| | - Takashi Yurube
- Department of Orthopaedic Surgery, Kobe University, 7-5-1 Kusunoki-cho, chuou-ku, Kobe City, Hyogo, 650-0017, Japan
| | - Yasuchika Aoki
- Department of Orthopaedic Surgery, Eastern Chiba Medical Center, 3-6-2 Okayamadai, Togane City, Chiba, 283-8686, Japan
| | - Masashi Oshima
- Department of Orthopaedic Surgery, Nihon University Itabashi Hospital, 30-1 Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Masahiko Takahata
- Department of Orthopaedic Surgery, Hokkaido University, North-15, West-7, Kita-ku, Sapporo City, Hokkaido, 060-8638, Japan
| | - Akira Iwata
- Department of Orthopaedic Surgery, Hokkaido University, North-15, West-7, Kita-ku, Sapporo City, Hokkaido, 060-8638, Japan
| | - Hirooki Endo
- Department of Orthopaedic Surgery, Iwate Medical University, 19-1 Uchimaru, Morioka City, Iwate, 020-8505, Japan
| | - Tetsuya Abe
- Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8577, Japan
| | - Toshinori Tsukanishi
- Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8577, Japan
| | - Kazuyoshi Nakanishi
- Department of Orthopaedic Surgery, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima, 734-8551, Japan
| | - Kota Watanabe
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tomohiro Hikata
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Satoshi Suzuki
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Norihiro Isogai
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Mita, Minato-ku, Tokyo, 108-8329, Japan
| | - Eijiro Okada
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Haruki Funao
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Mita, Minato-ku, Tokyo, 108-8329, Japan
| | - Seiji Ueda
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yuta Shiono
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kenya Nojiri
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Naobumi Hosogane
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Orthopaedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa City, Saitama, 359-8513, Japan.,Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Mita, Minato-ku, Tokyo, 108-8329, Japan
| | - Ken Ishii
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Mita, Minato-ku, Tokyo, 108-8329, Japan
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24
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Konishi T, Endo K, Aihara T, Matsuoka Y, Suzuki H, Takamatsu T, Kusakabe T, Sawaji Y, Nishimura H, Murata K, Yamamoto K. Effect of cervical flexion and extension on thoracic sagittal alignment. J Orthop Surg (Hong Kong) 2020; 27:2309499019876999. [PMID: 31597519 DOI: 10.1177/2309499019876999] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
INTRODUCTION The cervical spine has the largest sagittal motion in the whole spine, and cervical alignment affects the thoracic sagittal alignment. However, the effects of cervical flexion and extension on thoracic sagittal alignment have not been investigated in detail. The purpose of this study was to analyze the change of thoracic sagittal alignment following cervical flexion and extension. SUBJECTS AND METHODS A total of 55 consecutive patients (42 men and 13 women; average age 49.1 years) who presented to our department with spinal degenerative disease between January 2016 and September 2017 were enrolled in our study. Subjects with a history of trauma, infection, tumor, inflammatory disease, ossification, or cervical deformities, and those who had undergone spinal surgery were excluded. The following parameters were analyzed: occipito-axial angle (O-C2), C2 slope (C2S), C2-C7 angle, T1 slope (T1S), thoracic kyphosis, T1-T4 angle, T5-T8 angle, T9-T12 angle, lumbar lordosis, sacral slope, pelvic tilt in cervical flexion, neutral, and extension. RESULTS Cervical flexion significantly decreased O-C2, C2-C7 angles and T1S, and increased C2S. Cervical extension conversely changed these parameters. At cervical flexion, the correlation of C2-C7 angle with thoracic parameters was maintained, except for the T1-T4 angle. At cervical extension, the correlation was observed with T1S and T1-T4 angle. CONCLUSION Cervical flexion affects the T1S and T5-T8 angle, but there is no significant change in T1-T4 and T9 and lower spino-pelvic columns. This study suggests that T2-T4 can be considered as a stable distal end when cervical long fixation for corrective surgery is performed.
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Affiliation(s)
- Takamitsu Konishi
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Takuya Kusakabe
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
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25
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Kawabata A, Yoshii T, Hirai T, Ushio S, Kaito T, Yamashita T, Fujiwara H, Nagamoto Y, Matsuoka Y, Suzuki H, Nishimura H, Terai H, Tamai K, Tagami A, Yamada S, Adachi S, Watanabe K, Katsumi K, Ohashi M, Shibuya Y, Harimaya K, Kawaguchi K, Yokoyama N, Oishi H, Doi T, Kimura A, Inoue H, Inoue G, Miyagi M, Saito W, Nakano A, Sakai D, Nukaga T, Ikegami S, Shimizu M, Futatsugi T, Ohtori S, Furuya T, Orita S, Imagama S, Ando K, Kobayashi K, Kiyasu K, Murakami H, Yoshioka K, Seki S, Hongo M, Kakutani K, Yurube T, Aoki Y, Oshima M, Takahata M, Iwata A, Endo H, Abe T, Tsukanishi T, Nakanishi K, Watanabe K, Hikata T, Suzuki S, Isogai N, Okada E, Funao H, Ueda S, Shiono Y, Nojiri K, Hosogane N, Ishii K. Effect of bisphosphonates or teriparatide on mechanical complications after posterior instrumented fusion for osteoporotic vertebral fracture: a multi-center retrospective study. BMC Musculoskelet Disord 2020; 21:420. [PMID: 32611386 PMCID: PMC7331246 DOI: 10.1186/s12891-020-03452-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 06/23/2020] [Indexed: 12/18/2022] Open
Abstract
Background The optimal treatment of osteoporosis after reconstruction surgery for osteoporotic vertebral fractures (OVF) remains unclear. In this multicentre retrospective study, we investigated the effects of typically used agents for osteoporosis, namely, bisphosphonates (BP) and teriparatide (TP), on surgical results in patients with osteoporotic vertebral fractures. Methods Retrospectively registered data were collected from 27 universities and affiliated hospitals in Japan. We compared the effects of BP vs TP on postoperative mechanical complication rates, implant-related reoperation rates, and clinical outcomes in patients who underwent posterior instrumented fusion for OVF. Data were analysed according to whether the osteoporosis was primary or glucocorticoid-induced. Results A total of 159 patients who underwent posterior instrumented fusion for OVF were included. The overall mechanical complication rate was significantly lower in the TP group than in the BP group (BP vs TP: 73.1% vs 58.2%, p = 0.045). The screw backout rate was significantly lower and the rates of new vertebral fractures and pseudoarthrosis tended to be lower in the TP group than in the BP group. However, there were no significant differences in lumbar functional scores and visual analogue scale pain scores or in implant-related reoperation rates between the two groups. The incidence of pseudoarthrosis was significantly higher in patients with glucocorticoid-induced osteoporosis (GIOP) than in those with primary osteoporosis; however, the pseudoarthrosis rate was reduced by using TP. The use of TP also tended to reduce the overall mechanical complication rate in both primary osteoporosis and GIOP. Conclusions The overall mechanical complication rate was lower in patients who received TP than in those who received a BP postoperatively, regardless of type of osteoporosis. The incidence of pseudoarthrosis was significantly higher in patients with GIOP, but the use of TP reduced the rate of pseudoarthrosis in GIOP patients. The use of TP was effective to reduce postoperative complications for OVF patients treated with posterior fusion.
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Affiliation(s)
- Atsuyuki Kawabata
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Toshitaka Yoshii
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan. .,Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1 Chome-5-45 Yushima, Bunkyo City, Tokyo, 113-8510, Japan.
| | - Takashi Hirai
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Shuta Ushio
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Tomoya Yamashita
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Hiroyasu Fujiwara
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Yukitaka Nagamoto
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Yuji Matsuoka
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hidekazu Suzuki
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hirosuke Nishimura
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hidetomi Terai
- Department of Orthopaedic Surgery, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Koji Tamai
- Department of Orthopaedic Surgery, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Atsushi Tagami
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, Nagasaki, 852-8501, Japan
| | - Syuta Yamada
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, Nagasaki, 852-8501, Japan
| | - Shinji Adachi
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, Nagasaki, 852-8501, Japan
| | - Kei Watanabe
- Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachi Dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Keiichi Katsumi
- Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachi Dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Masayuki Ohashi
- Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachi Dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Yohei Shibuya
- Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachi Dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Katsumi Harimaya
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Kenichi Kawaguchi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Nobuhiko Yokoyama
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Hidekazu Oishi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Toshiro Doi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Atsushi Kimura
- Department of Orthopaedic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke City, Tochigi, 329-0498, Japan
| | - Hirokazu Inoue
- Department of Orthopaedic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke City, Tochigi, 329-0498, Japan
| | - Gen Inoue
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Masayuki Miyagi
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Wataru Saito
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Atsushi Nakano
- Department of Orthopaedic Surgery, Osaka Medical College, 2-7 Daigakumachi, Takatsuki City, Osaka, 569-0801, Japan
| | - Daisuke Sakai
- Department of Orthopaedic Surgery, Tokai University, 143 Shimokasuya, Isehara City, Kanagawa, 259-1193, Japan
| | - Tadashi Nukaga
- Department of Orthopaedic Surgery, Tokai University, 143 Shimokasuya, Isehara City, Kanagawa, 259-1193, Japan
| | - Shota Ikegami
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Masayuki Shimizu
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Toshimasa Futatsugi
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Takeo Furuya
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Sumihisa Orita
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Shiro Imagama
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Kei Ando
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Kazuyoshi Kobayashi
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Katsuhito Kiyasu
- Department of Orthopaedic Surgery, Kochi University, Oko-cho Kohasu, Nankoku City, Kochi, 783-8505, Japan
| | - Hideki Murakami
- Department of Orthopaedic Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa City, Ishikawa, 920-8641, Japan
| | - Katsuhito Yoshioka
- Department of Orthopaedic Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa City, Ishikawa, 920-8641, Japan
| | - Shoji Seki
- Department of Orthopaedic Surgery, University of Toyama, 2630 Sugitani, Toyama City, Toyama, 930-0194, Japan
| | - Michio Hongo
- Department of Orthopaedic Surgery, Akita University, 1-1-1 Hondo, Akita City, Akita, 010-8543, Japan
| | - Kenichiro Kakutani
- Department of Orthopaedic Surgery, Kobe University, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe City, Hyogo, 650-0017, Japan
| | - Takashi Yurube
- Department of Orthopaedic Surgery, Kobe University, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe City, Hyogo, 650-0017, Japan
| | - Yasuchika Aoki
- Department of Orthopaedic Surgery, Eastern Chiba Medical Center, 3-6-2 Okayamadai, Togane City, Chiba, 283-8686, Japan
| | - Masashi Oshima
- Department of Orthopaedic Surgery, Nihon University Itabashi Hospital, 30-1 Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Masahiko Takahata
- Department of Orthopaedic Surgery, Hokkaido University, North-15, West-7, Kita-ku, Sapporo City, Hokkaido, 060-8638, Japan
| | - Akira Iwata
- Department of Orthopaedic Surgery, Hokkaido University, North-15, West-7, Kita-ku, Sapporo City, Hokkaido, 060-8638, Japan
| | - Hirooki Endo
- Department of Orthopaedic Surgery, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
| | - Tetsuya Abe
- Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8577, Japan
| | - Toshinori Tsukanishi
- Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8577, Japan
| | - Kazuyoshi Nakanishi
- Department of Orthopaedic Surgery, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima, 734-8551, Japan
| | - Kota Watanabe
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tomohiro Hikata
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Satoshi Suzuki
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Norihiro Isogai
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Mita, Minato-ku, Tokyo, 108-8329, Japan
| | - Eijiro Okada
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Haruki Funao
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Mita, Minato-ku, Tokyo, 108-8329, Japan
| | - Seiji Ueda
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yuta Shiono
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kenya Nojiri
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Naobumi Hosogane
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Orthopaedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa City, Saitama, 359-8513, Japan
| | - Ken Ishii
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Mita, Minato-ku, Tokyo, 108-8329, Japan
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26
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Isogai N, Hosogane N, Funao H, Nojiri K, Suzuki S, Okada E, Ueda S, Hikata T, Shiono Y, Watanabe K, Watanabe K, Kaito T, Yamashita T, Fujiwara H, Nagamoto Y, Terai H, Tamai K, Matsuoka Y, Suzuki H, Nishimura H, Tagami A, Yamada S, Adachi S, Ohtori S, Orita S, Furuya T, Yoshii T, Ushio S, Inoue G, Miyagi M, Saito W, Imagama S, Ando K, Sakai D, Nukaga T, Kiyasu K, Kimura A, Inoue H, Nakano A, Harimaya K, Kawaguchi K, Yokoyama N, Oishi H, Doi T, Ikegami S, Shimizu M, Futatsugi T, Kakutani K, Yurube T, Oshima M, Uei H, Aoki Y, Takahata M, Iwata A, Seki S, Murakami H, Yoshioka K, Endo H, Hongo M, Nakanishi K, Abe T, Tsukanishi T, Ishii K. The Surgical Outcomes of Spinal Fusion for Osteoporotic Vertebral Fractures in the Lower Lumbar Spine with a Neurological Deficit. Spine Surg Relat Res 2020; 4:199-207. [PMID: 32864485 PMCID: PMC7447347 DOI: 10.22603/ssrr.2019-0079] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 12/07/2019] [Indexed: 12/27/2022] Open
Abstract
Introduction Osteoporotic vertebral fracture (OVF) is the most common osteoporotic fracture, and some patients require surgical intervention to improve their impaired activities of daily living with neurological deficits. However, many previous reports have focused on OVF around the thoracolumbar junction, and the surgical outcomes of lumbar OVF have not been thoroughly discussed. We aimed to investigate the surgical outcomes for lumbar OVF with a neurological deficit. Methods Patients who underwent fusion surgery for thoracolumbar OVF with a neurological deficit were enrolled at 28 institutions. Clinical information, comorbidities, perioperative complications, Japanese Orthopaedic Association scores, visual analog scale scores, and radiographic parameters were compared between patients with lower lumbar fracture (L3-5) and those with thoracolumbar junction fracture (T10-L2). Each patient with lower lumbar fracture (L group) was matched with to patients with thoracolumbar junction fracture (T group). Results A total 403 patients (89 males and 314 females, mean age: 73.8 ± 7.8 years, mean follow-up: 3.9 ± 1.7 years) were included in this study. Lower lumbar OVF was frequently found in patients with lower bone mineral density. After matching, mechanical failure was more frequent in the L group (L group: 64%, T group: 39%; p < 0.001). There was no difference between groups in the clinical and radiographical outcomes, although the rates of complication and revision surgery were still high in both groups. Conclusions The surgical intervention for OVF is effective in patients with myelopathy or radiculopathy regardless of the surgical level, although further study is required to improve clinical and radiographical outcomes. Level of evidence Level III
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Affiliation(s)
- Norihiro Isogai
- Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare (IUHW), Narita, Japan.,Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Naobumi Hosogane
- Department of Orthopedic Surgery, Kyorin University, Tokyo, Japan
| | - Haruki Funao
- Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare (IUHW), Narita, Japan.,Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kenya Nojiri
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Suzuki
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Eijiro Okada
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Seiji Ueda
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Tomohiro Hikata
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Yuta Shiono
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kota Watanabe
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kei Watanabe
- Department of Orthopedic Surgery, Niigata University, Niigata, Japan
| | - Takashi Kaito
- Department of Orthopedic Surgery, Osaka University, Suita, Japan
| | - Tomoya Yamashita
- Department of Orthopedic Surgery, Osaka University, Suita, Japan
| | | | | | - Hidetomi Terai
- Department of Orthopedic Surgery, Osaka City University, Osaka, Japan
| | - Koji Tamai
- Department of Orthopedic Surgery, Osaka City University, Osaka, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Tagami
- Department of Orthopedic Surgery, Nagasaki University, Nagasaki, Japan
| | - Shuta Yamada
- Department of Orthopedic Surgery, Nagasaki University, Nagasaki, Japan
| | - Shinji Adachi
- Department of Orthopedic Surgery, Nagasaki University, Nagasaki, Japan
| | - Seiji Ohtori
- Department of Orthopedic Surgery, Chiba University, Chiba, Japan
| | - Sumihisa Orita
- Department of Orthopedic Surgery, Chiba University, Chiba, Japan
| | - Takeo Furuya
- Department of Orthopedic Surgery, Chiba University, Chiba, Japan
| | - Toshitaka Yoshii
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shuta Ushio
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Gen Inoue
- Department of Orthopedic Surgery, Kitasato University, Sagamihara, Japan
| | - Masayuki Miyagi
- Department of Orthopedic Surgery, Kitasato University, Sagamihara, Japan
| | - Wataru Saito
- Department of Orthopedic Surgery, Kitasato University, Sagamihara, Japan
| | - Shiro Imagama
- Department of Orthopedic Surgery, Nagoya University, Nagoya, Japan
| | - Kei Ando
- Department of Orthopedic Surgery, Nagoya University, Nagoya, Japan
| | - Daisuke Sakai
- Department of Orthopedic Surgery, Tokai University, Isehara, Japan
| | - Tadashi Nukaga
- Department of Orthopedic Surgery, Tokai University, Isehara, Japan
| | - Katsuhito Kiyasu
- Department of Orthopedic Surgery, Kochi University, Nankoku, Japan
| | - Atsushi Kimura
- Department of Orthopedic Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Hirokazu Inoue
- Department of Orthopedic Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Atsushi Nakano
- Department of Orthopedic Surgery, Osaka Medical College, Takatsuki, Japan
| | - Katsumi Harimaya
- Department of Orthopedic Surgery, Kyushu University, Fukuoka, Japan
| | | | | | - Hidekazu Oishi
- Department of Orthopedic Surgery, Kyushu University, Fukuoka, Japan
| | - Toshiro Doi
- Department of Orthopedic Surgery, Kyushu University, Fukuoka, Japan
| | - Shota Ikegami
- Department of Orthopaedic Surgery, Shinshu University, Matsumoto, Japan
| | - Masayuki Shimizu
- Department of Orthopaedic Surgery, Shinshu University, Matsumoto, Japan
| | | | - Kenichiro Kakutani
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Yurube
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masashi Oshima
- Department of Orthopedic Surgery, Nihon University Itabashi Hospital, Tokyo, Japan
| | - Hiroshi Uei
- Department of Orthopedic Surgery, Nihon University Itabashi Hospital, Tokyo, Japan
| | - Yasuchika Aoki
- Department of Orthopedic Surgery, Eastern Chiba Medical Center, Togane, Japan
| | - Masahiko Takahata
- Department of Orthopedic Surgery, Hokkaido University, Sapporo, Japan
| | - Akira Iwata
- Department of Orthopedic Surgery, Hokkaido University, Sapporo, Japan
| | - Shoji Seki
- Department of Orthopedic Surgery, University of Toyama, Toyama, Japan
| | - Hideki Murakami
- Department of Orthopedic Surgery, Kanazawa University, Kanazawa, Japan
| | | | - Hirooki Endo
- Department of Orthopedic Surgery, Iwate Medical University, Morioka, Japan
| | - Michio Hongo
- Department of Orthopedic Surgery, Akita University, Akita, Japan
| | | | - Tetsuya Abe
- Department of Orthopedic Surgery, University of Tsukuba, Tsukuba, Japan
| | | | - Ken Ishii
- Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare (IUHW), Narita, Japan.,Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
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27
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Murata K, Endo K, Aihara T, Suzuki H, Matsuoka Y, Nishimura H, Takamatsu T, Kusakabe T, Maekawa A, Yamamoto K. Relationship between cervical and global sagittal balance in patients with dropped head syndrome. Eur Spine J 2020; 29:413-419. [PMID: 31938945 DOI: 10.1007/s00586-019-06229-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 10/14/2019] [Accepted: 11/09/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND DHS is characterized by chin-on-chest deformity and devastatingly impedes activities of daily living in affected individuals. There is a paucity of literature about the pathophysiology of DHS including knowledge about spinal sagittal alignment. We conducted this study to clarify the relationship between cervical sagittal alignment and global sagittal balance in DHS. METHODS This is a retrospective radiographic study of a case series of DHS. Forty-one patients with diagnosed DHS were enrolled. Measurements were made using lateral standing radiograph. RESULTS C2-C7 sagittal vertical axis (SVA) was estimated as 52.0 ± 2.4 mm. Among sagittal parameters, C7-S1 SVA positively correlated with C2-C7 angle (C2-C7 A) (r = 0.33). For the correlations between C7 and S1 SVA and C2-C7 A, both logistic and linear regression models were used to determine the threshold for C2-C7 A value responsible for global sagittal balance. C2-C7 A of - 15.0 and 6.0 were predicted by logistic and linear regression models and were considered responsible for the occurrence of global positive imbalance. Therefore, we divided into two groups, namely, cervical kyphosis group (C type) and diffuse kyphosis group (D type) by median value of C2-C7 A. Enlarged thoracic kyphosis and global positive imbalance were observed in D type compared to C type. CONCLUSION C2-C7 A exhibited correlations with cervical balance and also with global balance. There should be various type of thoraco-lumbar alignment in DHS. These slides can be retrieved under Electronic Supplementary Material.
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Affiliation(s)
- Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takuya Kusakabe
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Asato Maekawa
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
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Leemann SC, Liu S, Hexemer A, Marcus MA, Melton CN, Nishimura H, Sun C. Demonstration of Machine Learning-Based Model-Independent Stabilization of Source Properties in Synchrotron Light Sources. Phys Rev Lett 2019; 123:194801. [PMID: 31765214 DOI: 10.1103/physrevlett.123.194801] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/23/2019] [Indexed: 06/10/2023]
Abstract
Synchrotron light sources, arguably among the most powerful tools of modern scientific discovery, are presently undergoing a major transformation to provide orders of magnitude higher brightness and transverse coherence enabling the most demanding experiments. In these experiments, overall source stability will soon be limited by achievable levels of electron beam size stability, presently on the order of several microns, which is still 1-2 orders of magnitude larger than already demonstrated stability of source position and current. Until now source size stabilization has been achieved through corrections based on a combination of static predetermined physics models and lengthy calibration measurements, periodically repeated to counteract drift in the accelerator and instrumentation. We now demonstrate for the first time how the application of machine learning allows for a physics- and model-independent stabilization of source size relying only on previously existing instrumentation. Such feed-forward correction based on a neural network that can be continuously online retrained achieves source size stability as low as 0.2 μm (0.4%) rms, which results in overall source stability approaching the subpercent noise floor of the most sensitive experiments.
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Affiliation(s)
- S C Leemann
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S Liu
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | - A Hexemer
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M A Marcus
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C N Melton
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - H Nishimura
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C Sun
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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29
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Sakai Y, Kaito T, Takenaka S, Yamashita T, Makino T, Hosogane N, Nojiri K, Suzuki S, Okada E, Watanabe K, Funao H, Isogai N, Ueda S, Hikata T, Shiono Y, Watanabe K, Katsumi K, Fujiwara H, Nagamoto Y, Terai H, Tamai K, Matsuoka Y, Suzuki H, Nishimura H, Tagami A, Yamada S, Adachi S, Ohtori S, Orita S, Furuya T, Yoshii T, Ushio S, Inoue G, Miyagi M, Saito W, Imagama S, Ando K, Sakai D, Nukaga T, Kiyasu K, Kimura A, Inoue H, Nakano A, Harimaya K, Doi T, Kawaguchi K, Yokoyama N, Oishi H, Ikegami S, Futatsugi T, Shimizu M, Kakutani K, Yurube T, Oshima M, Uei H, Aoki Y, Takahata M, Iwata A, Seki S, Murakami H, Yoshioka K, Endo H, Hongo M, Nakanishi K, Abe T, Tsukanishi T, Ishii K. Complications after spinal fixation surgery for osteoporotic vertebral collapse with neurological deficits: Japan Association of Spine Surgeons with ambition multicenter study. J Orthop Sci 2019; 24:985-990. [PMID: 31521452 DOI: 10.1016/j.jos.2019.08.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 08/20/2019] [Accepted: 08/22/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND There have been few reports on the incidence and risk factors of the complications after spinal fixation surgery for osteoporotic vertebral collapse (OVC) with neurological deficits. This study aimed to identify the incidence and risk factors of the complications after OVC surgery. METHODS In this retrospective multicenter study, a total of 403 patients (314 women and 89 men; mean age 73.8 years) who underwent spinal fixation surgery for OVC with neurological deficits between 2005 and 2014 were enrolled. Data on patient demographics were collected, including age, sex, body mass index, smoking, steroid use, medical comorbidities, and surgical procedures. All postoperative complications that occurred within 6 weeks were recorded. Patients were classified into two groups, namely, complication group and no complication group, and risk factors for postoperative complications were investigated by univariate and multivariate analyses. RESULTS Postoperative complications occurred in 57 patients (14.1%), and the most common complication was delirium (5.7%). In the univariate analysis, the complication group was found to be older (p = 0.039) and predominantly male (p = 0.049), with higher occurrence rate of liver disease (p = 0.001) and Parkinson's disease (p = 0.039) compared with the no-complication group. In the multivariate analysis, the significant independent risk factors were age (p = 0.021; odds ratio [OR] 1.051, 95% confidence interval [CI] 1.007-1.097), liver disease (p < 0.001; OR 8.993, 95% CI 2.882-28.065), and Parkinson's disease (p = 0.009; OR 3.636, 95% CI 1.378-9.599). CONCLUSIONS Complications after spinal fixation surgery for OVC with neurological deficits occurred in 14.1%. Age, liver disease, and Parkinson's disease were demonstrated to be independent risk factors for postoperative complications.
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Affiliation(s)
- Yusuke Sakai
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan.
| | - Shota Takenaka
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tomoya Yamashita
- Department of Orthopaedic Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Takahiro Makino
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Naobumi Hosogane
- Department of Orthopedic Surgery, Kyorin University, Mitaka, Japan
| | - Kenya Nojiri
- Department of Orthopedic Surgery, Isehara Kyodo Hospital, Isehara, Japan
| | - Satoshi Suzuki
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Eijiro Okada
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kota Watanabe
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Haruki Funao
- Spine and Spinal Cord Center, International University of Health and Welfare, Mita Hospital, Tokyo, Japan
| | - Norihiro Isogai
- Spine and Spinal Cord Center, International University of Health and Welfare, Mita Hospital, Tokyo, Japan
| | - Seiji Ueda
- Department of Orthopaedic Surgery, Kawasaki Municipal Hospital, Kawasaki, Japan
| | - Tomohiro Hikata
- Department of Orthopaedic Surgery, Spine Center, Kitasato Institute Hospital, Tokyo, Japan
| | - Yuta Shiono
- Department of Orthopaedic Surgery, Saiseikai Central Hospital, Tokyo, Japan
| | - Kei Watanabe
- Department of Orthopaedic Surgery, Niigata University Medical and Dental General Hospital, Niigata, Japan
| | - Keiichi Katsumi
- Department of Orthopaedic Surgery, Niigata University Medical and Dental General Hospital, Niigata, Japan
| | - Hiroyasu Fujiwara
- Department of Orthopaedic Surgery, National Hospital Organization Osaka Minami Medical Center, Osaka, Japan
| | - Yukitaka Nagamoto
- Department of Orthopaedic Surgery, Osaka Rosai Hospital, Osaka, Japan
| | - Hidetomi Terai
- Department of Orthopedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Koji Tamai
- Department of Orthopedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Tagami
- Department of Orthopedic Surgery, Nagasaki University Hospital, Nagasaki, Japan
| | - Shuta Yamada
- Department of Orthopedic Surgery, Nagasaki University Hospital, Nagasaki, Japan
| | - Shinji Adachi
- Department of Orthopedic Surgery, Nagasaki University Hospital, Nagasaki, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Sumihisa Orita
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takeo Furuya
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Toshitaka Yoshii
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shuta Ushio
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Gen Inoue
- Department of Orthopaedic Surgery, Kitasato University, School of Medicine, Sagamihara, Japan
| | - Masayuki Miyagi
- Department of Orthopaedic Surgery, Kitasato University, School of Medicine, Sagamihara, Japan
| | - Wataru Saito
- Department of Orthopaedic Surgery, Kitasato University, School of Medicine, Sagamihara, Japan
| | - Shiro Imagama
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kei Ando
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Daisuke Sakai
- Department of Orthopaedic Surgery, Tokai University School of Medicine, Isehara, Japan
| | - Tadashi Nukaga
- Department of Orthopaedic Surgery, Tokai University School of Medicine, Isehara, Japan
| | - Katsuhito Kiyasu
- Department of Orthopaedic Surgery, Kochi Medical School, Kochi University, Nankoku, Japan
| | - Atsushi Kimura
- Department of Orthopedic Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Hirokazu Inoue
- Department of Orthopedic Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Atsushi Nakano
- Department of Orthopedic Surgery, Osaka Medical College, Takatsuki, Japan
| | - Katsumi Harimaya
- Department of Orthopaedic Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Toshio Doi
- Department of Orthopaedic Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | | | | | - Hidekazu Oishi
- Department of Orthopedic Surgery, Kyushu University, Fukuoka, Japan
| | - Shota Ikegami
- Department of Orthopedic Surgery, Shinshu University, Matsumoto, Japan
| | | | - Masayuki Shimizu
- Department of Orthopedic Surgery, Matsumoto City Hospital, Matsumoto, Japan
| | - Kenichiro Kakutani
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Yurube
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masashi Oshima
- Department of Orthopaedic Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Hiroshi Uei
- Department of Orthopaedic Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Yasuchika Aoki
- Department of Orthopaedic Surgery, Eastern Chiba Medical Center, Togane, Japan
| | - Masahiko Takahata
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Akira Iwata
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Shoji Seki
- Department of Orthopedic Surgery, University of Toyama, Toyama, Japan
| | - Hideki Murakami
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Katsuhito Yoshioka
- Department of Orthopedic Surgery, National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - Hirooki Endo
- Department of Orthopedic Surgery, Iwate Medical University, Morioka, Japan
| | - Michio Hongo
- Department of Orthopedic Surgery, Akita University, Akita, Japan
| | | | - Tetsuya Abe
- Department of Orthopedic Surgery, University of Tsukuba, Tsukuba, Japan
| | | | - Ken Ishii
- Spine and Spinal Cord Center, International University of Health and Welfare, Mita Hospital, Tokyo, Japan
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Watanabe K, Katsumi K, Ohashi M, Shibuya Y, Hirano T, Endo N, Kaito T, Yamashita T, Fujiwara H, Nagamoto Y, Matsuoka Y, Suzuki H, Nishimura H, Terai H, Tamai K, Tagami A, Yamada S, Adachi S, Yoshii T, Ushio S, Harimaya K, Kawaguchi K, Yokoyama N, Oishi H, Doi T, Kimura A, Inoue H, Inoue G, Miyagi M, Saito W, Nakano A, Sakai D, Nukaga T, Ikegami S, Shimizu M, Futatsugi T, Ohtori S, Furuya T, Orita S, Imagama S, Ando K, Kobayashi K, Kiyasu K, Murakami H, Yoshioka K, Seki S, Hongo M, Kakutani K, Yurube T, Aoki Y, Oshima M, Takahata M, Iwata A, Endo H, Abe T, Tsukanishi T, Nakanishi K, Watanabe K, Hikata T, Suzuki S, Isogai N, Okada E, Funao H, Ueda S, Shiono Y, Nojiri K, Hosogane N, Ishii K. Surgical outcomes of spinal fusion for osteoporotic vertebral fracture in the thoracolumbar spine: Comprehensive evaluations of 5 typical surgical fusion techniques. J Orthop Sci 2019; 24:1020-1026. [PMID: 31445858 DOI: 10.1016/j.jos.2019.07.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/20/2019] [Accepted: 07/23/2019] [Indexed: 02/09/2023]
Abstract
BACKGROUND A consensus on the optimal surgical procedure for thoracolumbar OVF has yet to be reached due to the previous relatively small number of case series. The study was conducted to investigate surgical outcomes for osteoporotic vertebral fracture (OVF) in the thoracolumbar spine. METHODS In total, 315 OVF patients (mean age, 74 years; 68 men and 247 women) with neurological symptoms who underwent spinal fusion with a minimum 2-year follow-up were included. The patients were divided into 5 groups by procedure: anterior spinal fusion alone (ASF group, n = 19), anterior/posterior combined fusion (APSF group, n = 27), posterior spinal fusion alone (PSF group, n = 40), PSF with 3-column osteotomy (3CO group, n = 92), and PSF with vertebroplasty (VP + PSF group, n = 137). RESULTS Mean operation time was longer in the APSF group (p < 0.05), and intraoperative blood loss was lower in the VP + PSF group (p < 0.05). The amount of local kyphosis correction was greater in the APSF and 3CO groups (p < 0.05). Clinical outcomes were approximately equivalent among all groups. CONCLUSION All 5 procedures resulted in acceptable neurological outcomes and functional improvement in walking ability. Moreover, they were similar with regard to complication rates, prevalence of mechanical failure related to the instrumentation, and subsequent vertebral fracture. Individual surgical techniques can be adapted to suit patient condition or severity of OVF.
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Affiliation(s)
- Kei Watanabe
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, 951-8510, Japan.
| | - Keiichi Katsumi
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, 951-8510, Japan
| | - Masayuki Ohashi
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, 951-8510, Japan
| | - Yohei Shibuya
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, 951-8510, Japan
| | - Toru Hirano
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, 951-8510, Japan
| | - Naoto Endo
- Department of Orthopaedic Surgery, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata City, 951-8510, Japan
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Tomoya Yamashita
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Hiroyasu Fujiwara
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Yukitaka Nagamoto
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Yuji Matsuoka
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hidekazu Suzuki
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hirosuke Nishimura
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hidetomi Terai
- Department of Orthopaedic Surgery, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Koji Tamai
- Department of Orthopaedic Surgery, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Atsushi Tagami
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, 852-8501, Japan
| | - Syuta Yamada
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, 852-8501, Japan
| | - Shinji Adachi
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, 852-8501, Japan
| | - Toshitaka Yoshii
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Shuta Ushio
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Katsumi Harimaya
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Kenichi Kawaguchi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Nobuhiko Yokoyama
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Hidekazu Oishi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Toshiro Doi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Atsushi Kimura
- Department of Orthopaedic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke City, Tochigi, 329-0498, Japan
| | - Hirokazu Inoue
- Department of Orthopaedic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke City, Tochigi, 329-0498, Japan
| | - Gen Inoue
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Masayuki Miyagi
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Wataru Saito
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Atsushi Nakano
- Department of Orthopaedic Surgery, Osaka Medical College, 2-7 Daigakumachi, Takatsuki City, Osaka, 569-0801, Japan
| | - Daisuke Sakai
- Department of Orthopaedic Surgery, Tokai University, 143 Shimokasuya, Isehara City, Kanagawa 259-1193, Japan
| | - Tadashi Nukaga
- Department of Orthopaedic Surgery, Tokai University, 143 Shimokasuya, Isehara City, Kanagawa 259-1193, Japan
| | - Shota Ikegami
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Masayuki Shimizu
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Toshimasa Futatsugi
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City 260-8670, Japan
| | - Takeo Furuya
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City 260-8670, Japan
| | - Sumihisa Orita
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City 260-8670, Japan
| | - Shiro Imagama
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Kei Ando
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Kazuyoshi Kobayashi
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Katsuhito Kiyasu
- Department of Orthopaedic Surgery, Kochi University, Oko-cho Kohasu, Nankoku City, Kochi, 783-8505, Japan
| | - Hideki Murakami
- Department of Orthopaedic Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa City, Ishikawa, 920-0934, Japan
| | - Katsuhito Yoshioka
- Department of Orthopaedic Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa City, Ishikawa, 920-0934, Japan
| | - Shoji Seki
- Department of Orthopaedic Surgery, University of Toyama, 2630 Sugitani, Toyama City, 930-0194, Japan
| | - Michio Hongo
- Department of Orthopaedic Surgery, Akita University, 1-1-1 Hondo, Akita City, 010-8543, Japan
| | - Kenichiro Kakutani
- Department of Orthopaedic Surgery, Kobe University, 7-5-1 Kusunoki-cho, Chuou-ku, Kobe City, Hyogo, 650-0017, Japan
| | - Takashi Yurube
- Department of Orthopaedic Surgery, Kobe University, 7-5-1 Kusunoki-cho, Chuou-ku, Kobe City, Hyogo, 650-0017, Japan
| | - Yasuchika Aoki
- Department of Orthopaedic Surgery, Eastern Chiba Medical Center, 3-6-2 Okayamadai, Togane, 283-8686, Japan
| | - Masashi Oshima
- Department of Orthopaedic Surgery, Nihon University Itabashi Hospital, 30-1 Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Masahiko Takahata
- Department of Orthopaedic Surgery, Hokkaido University, North-15, West-7, Kita-ku, Sapporo City, 060-8638, Japan
| | - Akira Iwata
- Department of Orthopaedic Surgery, Hokkaido University, North-15, West-7, Kita-ku, Sapporo City, 060-8638, Japan
| | - Hirooki Endo
- Department of Orthopaedic Surgery, Iwate Medical University, 19-1 Uchimaru, Morioka City, Iwate, 020-8505, Japan
| | - Tetsuya Abe
- Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8577, Japan
| | - Toshinori Tsukanishi
- Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8577, Japan
| | - Kazuyoshi Nakanishi
- Department of Orthopaedic Surgery, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, 734-8551, Japan
| | - Kota Watanabe
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tomohiro Hikata
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Satoshi Suzuki
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Norihiro Isogai
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Orthopaedic Surgery, International University of Health and Welfare, Mita, Minato-ku, Tokyo, 108-8329, Japan
| | - Eijiro Okada
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Haruki Funao
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Orthopaedic Surgery, International University of Health and Welfare, Mita, Minato-ku, Tokyo, 108-8329, Japan
| | - Seiji Ueda
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yuta Shiono
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kenya Nojiri
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Naobumi Hosogane
- Department of Orthopaedic Surgery, Kyorin University, 6-20-2 Shinkawa, Mitaka City, Tokyo, 181-8611, Japan; Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Ken Ishii
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Orthopaedic Surgery, International University of Health and Welfare, Mita, Minato-ku, Tokyo, 108-8329, Japan
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Endo K, Kudo Y, Suzuki H, Aihara T, Matsuoka Y, Murata K, Takamatsu T, Sawaji Y, Nishimura H, Matsuoka A, Ishikawa K, Maruyama H, Fukutake K, Wada A, Takahashi H, Toyone T, Yamamoto K. Overview of dropped head syndrome (Combined survey report of three facilities). J Orthop Sci 2019; 24:1033-1036. [PMID: 31444010 DOI: 10.1016/j.jos.2019.07.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/17/2019] [Accepted: 07/24/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND Dropped head syndrome (DHS) is a low prevalence and the clinical features remain unclear. The purpose of the present study was to clarify the general overview of DHS. METHODS The subjects were 67 consecutive DHS patients (17 men and 50 women; average age 72.9 ± 10.2 years) presenting difficulty of horizontal gaze in up-right position. The patients' background, global spinal alignment, clinical findings and treatment were analyzed. RESULTS The peak population of DHS was 75-79-year-old females. The comorbidities included Parkinson's disease in 9 cases, minor trauma in 9 cases, post-cervical operation in 3 cases, mental depression in 3 cases, malignant tumor in 3 cases, diabetes mellitus in 2 cases and rheumatoid arthritis in 2 cases. The C2-C7 cervical coronal vertical axis was distributed more to the right side (2.6 ± 12.8 mm). Regarding sagittal alignment, 24 cases (35.8%) showed negative balanced DHS (N-DHS) and 43 cases (64.2%) showed positive balanced DHS (P-DHS). There were significant differences in C2-C7 angle, T1S, LL and PI-LL between the two groups. Cervical or back pain was present in 62 cases (92.5%), and average numerical rating scale was 3.0 ± 2.6. Fourteen cases (20.9%) recovered (average 11.3 months), but 29 cases (43.3%) did not recover without surgery. Twenty-four cases (35.8%) underwent surgery, 20 for cervical spine and 4 for thoraco-lumbar spine, and horizontal gaze difficulty was improved in all patients post-surgery. CONCLUSION DHS was mainly observed in elderly women. About 20% of DHS patients recovered without surgical treatment. DHS was accompanied by scoliosis in 37.3% of the cases.
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Affiliation(s)
- Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
| | - Yoshifumi Kudo
- Department of Orthopaedic Surgery, Showa University School of Medicine, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Akira Matsuoka
- Department of Orthopaedic Surgery, Showa University School of Medicine, Japan
| | - Koji Ishikawa
- Department of Orthopaedic Surgery, Showa University School of Medicine, Japan
| | - Hiroshi Maruyama
- Department of Orthopaedic Surgery, Showa University School of Medicine, Japan
| | | | - Akihito Wada
- Department of Orthopaedic Surgery, Toho University, Japan
| | | | - Tomoaki Toyone
- Department of Orthopaedic Surgery, Showa University School of Medicine, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
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Morace A, Iwata N, Sentoku Y, Mima K, Arikawa Y, Yogo A, Andreev A, Tosaki S, Vaisseau X, Abe Y, Kojima S, Sakata S, Hata M, Lee S, Matsuo K, Kamitsukasa N, Norimatsu T, Kawanaka J, Tokita S, Miyanaga N, Shiraga H, Sakawa Y, Nakai M, Nishimura H, Azechi H, Fujioka S, Kodama R. Enhancing laser beam performance by interfering intense laser beamlets. Nat Commun 2019; 10:2995. [PMID: 31278266 PMCID: PMC6611939 DOI: 10.1038/s41467-019-10997-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 05/21/2019] [Indexed: 11/12/2022] Open
Abstract
Increasing the laser energy absorption into energetic particle beams represents a longstanding quest in intense laser-plasma physics. During the interaction with matter, part of the laser energy is converted into relativistic electron beams, which are the origin of secondary sources of energetic ions, γ-rays and neutrons. Here we experimentally demonstrate that using multiple coherent laser beamlets spatially and temporally overlapped, thus producing an interference pattern in the laser focus, significantly improves the laser energy conversion efficiency into hot electrons, compared to one beam with the same energy and nominal intensity as the four beamlets combined. Two-dimensional particle-in-cell simulations support the experimental results, suggesting that beamlet interference pattern induces a periodical shaping of the critical density, ultimately playing a key-role in enhancing the laser-to-electron energy conversion efficiency. This method is rather insensitive to laser pulse contrast and duration, making this approach robust and suitable to many existing facilities. Enhanced coupling of laser energy to the target particles is a fundamental issue in laser-plasma interactions. Here the authors demonstrate increased photon absorption leading into higher laser to electron and proton energy transfer through the interference of multiple coherent beamlets.
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Affiliation(s)
- A Morace
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan.
| | - N Iwata
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - Y Sentoku
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - K Mima
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - Y Arikawa
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - A Yogo
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - A Andreev
- Max Born Institute for non-linear optics and short pulse spectroscopy, Berlin, 12489, Germany.,St. Petersburg State University, Sankt-Petersburg, 199034, Russia
| | - S Tosaki
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - X Vaisseau
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - Y Abe
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - S Kojima
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - S Sakata
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - M Hata
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - S Lee
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - K Matsuo
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - N Kamitsukasa
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - T Norimatsu
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - J Kawanaka
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - S Tokita
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - N Miyanaga
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - H Shiraga
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - Y Sakawa
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - M Nakai
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - H Nishimura
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - H Azechi
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - S Fujioka
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
| | - R Kodama
- Institute of Laser Engineering, Osaka University, Suita, 565-0871, Japan
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33
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Okada E, Yoshii T, Yamada T, Watanabe K, Katsumi K, Hiyama A, Watanabe M, Nakagawa Y, Okada M, Endo T, Shiraishi Y, Takeuchi K, Matsunaga S, Maruo K, Sakai K, Kobayashi S, Ohba T, Wada K, Ohya J, Mori K, Tsushima M, Nishimura H, Tsuji T, Okawa A, Matsumoto M, Watanabe K. Spinal fractures in patients with Diffuse idiopathic skeletal hyperostosis:A nationwide multi-institution survey. J Orthop Sci 2019; 24:601-606. [PMID: 30679080 DOI: 10.1016/j.jos.2018.12.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 11/03/2018] [Accepted: 12/05/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND Diffuse idiopathic skeletal hyperostosis (DISH) increases the spine's susceptibility to unstable fractures that can cause neurological deterioration. However, the detail of injury is still unclear. A nationwide multicenter retrospective study was conducted to assess the clinical characteristics and radiographic features of spinal fractures in patients with DISH. METHODS Patients were eligible for this study if they 1) had DISH, defined as flowing ossification along the anterolateral aspect of at least four contiguous vertebral bodies, and 2) had an injury in the ankylosing spine. This study included 285 patients with DISH (221 males, 64 females; mean age 75.2 ± 9.5 years). RESULTS The major cause of injury was falling from a standing or sitting position; this affected 146 patients (51.2%). Diagnosis of the fracture was delayed in 115 patients (40.4%). Later neurological deterioration by one or more Frankel grade was seen in 87 patients (30.5%). The following factors were significantly associated with neurological deficits: delayed diagnosis (p = 0.033), injury of the posterior column (p = 0.021), and the presence of ossification of the posterior longitudinal ligament (OPLL) (p < 0.001). The majority of patients (n = 241, 84.6%) were treated surgically, most commonly by conventional open posterior fixation (n = 199, 69.8%). Neurological improvement was seen in 20.0% of the conservatively treated patients, and in 47.0% of the patients treated surgically. CONCLUSIONS Minor trauma could cause spinal fractures in DISH patients. Delayed diagnosis, injury of the posterior column, and the presence of OPLL were significantly associated with neurological deterioration. Patients with neurological deficits or unstable fractures should be treated by fixation surgery.
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Affiliation(s)
- Eijiro Okada
- Dept. of Orthopaedic Surgery, Keio University, Tokyo, Japan; Dept. of Orthopaedic Surgery, Saiseikai Central Hospital, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Toshitaka Yoshii
- Dept. of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Tsuyoshi Yamada
- Dept. of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kei Watanabe
- Dept. of Orthopaedic Surgery, Niigata University Medical and Dental General Hospital, Niigata, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Keiichi Katsumi
- Dept. of Orthopaedic Surgery, Niigata University Medical and Dental General Hospital, Niigata, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Akihiko Hiyama
- Dept. of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Masahiko Watanabe
- Dept. of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Yukihiro Nakagawa
- Dept. of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Motohiro Okada
- Dept. of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Teruaki Endo
- Dept. of Orthopaedic Surgery, Jichi Medical University, Tochigi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Yasuyuki Shiraishi
- Dept. of Orthopaedic Surgery, Jichi Medical University, Tochigi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kazuhiro Takeuchi
- Dept. of Orthopaedic Surgery, National Hospital Organization Okayama Medical Center, Okayama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Shunji Matsunaga
- Dept. of Orthopaedic Surgery, Imakiire General Hospital, Kagoshima, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Keishi Maruo
- Dept. of Orthopedic Surgery, Hyogo College of Medicine, Hyogo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kenichiro Sakai
- Dept. of Orthopaedic Surgery, Saiseikai Kawaguchi General Hospital, Saitama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Sho Kobayashi
- Dept. of Orthopaedic Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Tetsuro Ohba
- Dept. of Orthopaedic Surgery, University of Yamanashi, Yamanashi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kanichiro Wada
- Dept. of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Aomori, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Junichi Ohya
- Dept. of Orthopaedic Surgery, The University of Tokyo, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kanji Mori
- Dept. of Orthopaedic Surgery, Shiga University of Medical Science, Shiga, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Mikito Tsushima
- Dept. of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Aichi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Hirosuke Nishimura
- Dept. of Orthopaedic Surgery, Tokyo Medical University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Takashi Tsuji
- Dept. of Orthopaedic Surgery, Fujita Health University, Aichi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Atsushi Okawa
- Dept. of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Morio Matsumoto
- Dept. of Orthopaedic Surgery, Keio University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kota Watanabe
- Dept. of Orthopaedic Surgery, Keio University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan.
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Hosogane N, Nojiri K, Suzuki S, Funao H, Okada E, Isogai N, Ueda S, Hikata T, Shiono Y, Watanabe K, Watanabe K, Kaito T, Yamashita T, Fujiwara H, Nagamoto Y, Terai H, Tamai K, Matsuoka Y, Suzuki H, Nishimura H, Tagami A, Yamada S, Adachi S, Ohtori S, Orita S, Furuya T, Yoshii T, Ushio S, Inoue G, Miyagi M, Saito W, Imagama S, Ando K, Sakai D, Nukaga T, Kiyasu K, Kimura A, Inoue H, Nakano A, Harimaya K, Kawaguchi K, Yokoyama N, Oishi H, Doi T, Ikegami S, Shimizu M, Futatsugi T, Kakutani K, Yurube T, Oshima M, Uei H, Aoki Y, Takahata M, Iwata A, Seki S, Murakami H, Yoshioka K, Endo H, Hongo M, Nakanishi K, Abe T, Tsukanishi T, Ishii K. Surgical Treatment of Osteoporotic Vertebral Fracture with Neurological Deficit-A Nationwide Multicenter Study in Japan. Spine Surg Relat Res 2019; 3:361-367. [PMID: 31768457 PMCID: PMC6834469 DOI: 10.22603/ssrr.2019-0004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 03/01/2019] [Indexed: 12/20/2022] Open
Abstract
Introduction The prevalence of patients with osteoporosis continues to increase in aging societies, including Japan. The first choice for managing osteoporotic vertebral compression fracture (OVF) is conservative treatment. Failure in conservative treatment for OVF may lead to non-union or vertebral collapse, resulting in neurological deficit and subsequently requiring surgical intervention. This multicenter nationwide study in Japan was conducted to comprehensively understand the outcomes of surgical treatments for OVF non-union. Methods This multicenter, retrospective study included 403 patients (89 males, 314 females, mean age 73.8 ± 7.8 years, mean follow-up 3.9 ± 1.7 years) with neurological deficit due to vertebral collapse or non-union after OVF at T10-L5 who underwent fusion surgery with a minimum 1-year follow-up. Radiological and clinical outcomes at baseline and at the final follow-up (FU) were evaluated. Results OVF was present at a thoracolumbar junction such as T12 (124 patients) and L1 (117 patients). A majority of OVF occurred after a minor trauma, such as falling down (55.3%) or lifting objects (8.4%). Short segment fusion, including affected vertebra, was conducted (mean 4.0 ± 2.0 vertebrae) with 256.8 minutes of surgery and 676.1 g of blood loss. A posterior approach was employed in 86.6% of the patients, followed by a combined anterior and posterior (8.7%), and an anterior (4.7%) approach. Perioperative complications and implant failures were observed in 18.1% and 41.2%, respectively. VAS scores of low back pain (74.7 to 30.8 mm) and leg pain (56.8 to 20.7 mm) improved significantly at FU. Preoperatively, 52.6% of the patients were unable to walk and the rate of non-ambulatory patients decreased to 7.5% at FU. Conclusions This study demonstrated that substantial improvement in activity of daily living (ADL) was achieved by fusion surgery. Although there was a considerable rate of complications, fusion surgery is beneficial for elderly OVF patients with non-union.
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Affiliation(s)
- Naobumi Hosogane
- Department of Orthopedic Surgery, Kyorin University, Tokyo, Japan.,Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kenya Nojiri
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Suzuki
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Haruki Funao
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.,Department of Orthopedic Surgery, International University of Health and Welfare, Tokyo, Japan
| | - Eijiro Okada
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Norihiro Isogai
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.,Department of Orthopedic Surgery, International University of Health and Welfare, Tokyo, Japan
| | - Seiji Ueda
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Tomohiro Hikata
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Yuta Shiono
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kota Watanabe
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Kei Watanabe
- Department of Orthopedic Surgery, Niigata University, Niigata, Japan
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tomoya Yamashita
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hiroyasu Fujiwara
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yukitaka Nagamoto
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hidetomi Terai
- Department of Orthopedic Surgery, Osaka City University, Osaka, Japan
| | - Koji Tamai
- Department of Orthopedic Surgery, Osaka City University, Osaka, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Tagami
- Department of Orthopedic Surgery, Nagasaki University, Nagasaki, Japan
| | - Syuta Yamada
- Department of Orthopedic Surgery, Nagasaki University, Nagasaki, Japan
| | - Shinji Adachi
- Department of Orthopedic Surgery, Nagasaki University, Nagasaki, Japan
| | - Seiji Ohtori
- Department of Orthopedic Surgery, Chiba University, Chiba, Japan
| | - Sumihisa Orita
- Department of Orthopedic Surgery, Chiba University, Chiba, Japan
| | - Takeo Furuya
- Department of Orthopedic Surgery, Chiba University, Chiba, Japan
| | - Toshitaka Yoshii
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shuta Ushio
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Gen Inoue
- Department of Orthopedic Surgery, Kitasato University, Sagamihara, Japan
| | - Masayuki Miyagi
- Department of Orthopedic Surgery, Kitasato University, Sagamihara, Japan
| | - Wataru Saito
- Department of Orthopedic Surgery, Kitasato University, Sagamihara, Japan
| | - Shiro Imagama
- Department of Orthopedic Surgery, Nagoya University, Nagoya, Japan
| | - Kei Ando
- Department of Orthopedic Surgery, Nagoya University, Nagoya, Japan
| | - Daisuke Sakai
- Department of Orthopedic Surgery, Tokai University, Isehara, Japan
| | - Tadashi Nukaga
- Department of Orthopedic Surgery, Tokai University, Isehara, Japan
| | - Katsuhito Kiyasu
- Department of Orthopedic Surgery, Kochi University, Nankoku, Japan
| | - Atsushi Kimura
- Department of Orthopedic Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Hirokazu Inoue
- Department of Orthopedic Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Atsushi Nakano
- Department of Orthopedic Surgery, Osaka Medical College, Takatsuki, Japan
| | - Katsumi Harimaya
- Department of Orthopedic Surgery, Kyushu University, Fukuoka, Japan
| | | | | | - Hidekazu Oishi
- Department of Orthopedic Surgery, Kyushu University, Fukuoka, Japan
| | - Toshio Doi
- Department of Orthopedic Surgery, Kyushu University, Fukuoka, Japan
| | - Shota Ikegami
- Department of Orthopedic Surgery, Shinshu University, Matsumoto, Japan
| | - Masayuki Shimizu
- Department of Orthopedic Surgery, Shinshu University, Matsumoto, Japan
| | | | | | - Takashi Yurube
- Department of Orthopedic Surgery, Kobe University, Kobe, Japan
| | - Masashi Oshima
- Department of Orthopedic Surgery, Nihon University Itabashi Hospital, Tokyo, Japan
| | - Hiroshi Uei
- Department of Orthopedic Surgery, Nihon University Itabashi Hospital, Tokyo, Japan
| | - Yasuchika Aoki
- Department of Orthopedic Surgery, Eastern Chiba Medical Center, Togane, Japan
| | - Masahiko Takahata
- Department of Orthopedic Surgery, Hokkaido University, Sapporo, Japan
| | - Akira Iwata
- Department of Orthopedic Surgery, Hokkaido University, Sapporo, Japan
| | - Shoji Seki
- Department of Orthopedic Surgery, University of Toyama, Toyama, Japan
| | - Hideki Murakami
- Department of Orthopedic Surgery, Kanazawa University, Kanazawa, Japan
| | | | - Hirooki Endo
- Department of Orthopedic Surgery, Iwate Medical University, Morioka, Japan
| | - Michio Hongo
- Department of Orthopedic Surgery, Akita University, Akita, Japan
| | | | - Tetsuya Abe
- Department of Orthopedic Surgery, University of Tsukuba, Tsukuba, Japan
| | | | - Ken Ishii
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.,Department of Orthopedic Surgery, International University of Health and Welfare, Tokyo, Japan
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35
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Maekawa A, Endo K, Suzuki H, Sawaji Y, Nishimura H, Matsuoka Y, Murata K, Takamatsu T, Seki T, Konishi T, Kusakabe T, Aihara T, Yamamoto K. Impact of pelvic incidence on change in lumbo-pelvic sagittal alignment between sitting and standing positions. Eur Spine J 2019; 28:1914-1919. [PMID: 30859390 DOI: 10.1007/s00586-019-05891-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 11/09/2018] [Accepted: 01/13/2019] [Indexed: 11/29/2022]
Abstract
PURPOSE Lumbo-pelvic sagittal alignment is affected by pelvic incidence (PI), and the PI represents the compensatory capacity of lumbo-pelvic sagittal alignment. The purpose of this study was to analyze changes in lumbo-pelvic sagittal alignment between the standing and sitting positions and to analyze its association with PI. METHODS This study included 253 subjects (160 men and 93 women; age 53.6 ± 7.4 years). The subjects were divided into three groups (younger age group (YG), from 20 to 49 years; middle age group, from 50 to 69 years, and older age group (OG), of 70 years and above). Lumbar lordotic angle (LL), sacral slope (SS), pelvic tilt (PT), pelvic incidence (PI), and the associations between the changes in LL (∆LL), SS (∆SS), PT (∆PT), and PI were analyzed. RESULTS In the YG, the amount of change in LL, SS, and PT was larger than in the OG. These parameters correlated with age in the standing position but not in the sitting position. On the other hand, in all groups, there were positive correlations between PI and changes between the standing and sitting positions. Multiple logistic regression analysis demonstrated that ∆LL = 3.81 - 0.72 × PT + 0.52 × PI, ∆SS = - 4.50 - 5.3 × PT + 0.34 × PI, and ∆PT = - 9.1 + 3.5 × PT - 0.21 × PI. CONCLUSIONS Change in lumbo-pelvic parameters between the sitting and standing positions correlated with PI. These slides can be retrieved under Electronic Supplementary Material.
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Affiliation(s)
- Asato Maekawa
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takeshi Seki
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takamitsu Konishi
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takuya Kusakabe
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
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Watanabe K, Katsumi K, Ohashi M, Shibuya Y, Izumi T, Hirano T, Endo N, Kaito T, Yamashita T, Fujiwara H, Nagamoto Y, Matsuoka Y, Suzuki H, Nishimura H, Terai H, Tamai K, Tagami A, Yamada S, Adachi S, Yoshii T, Ushio S, Harimaya K, Kawaguchi K, Yokoyama N, Oishi H, Doi T, Kimura A, Inoue H, Inoue G, Miyagi M, Saito W, Nakano A, Sakai D, Nukaga T, Ikegami S, Shimizu M, Futatsugi T, Ohtori S, Furuya T, Orita S, Imagama S, Ando K, Kobayashi K, Kiyasu K, Murakami H, Yoshioka K, Seki S, Hongo M, Kakutani K, Yurube T, Aoki Y, Oshima M, Takahata M, Iwata A, Endo H, Abe T, Tsukanishi T, Nakanishi K, Watanabe K, Hikata T, Suzuki S, Isogai N, Okada E, Funao H, Ueda S, Shiono Y, Nojiri K, Hosogane N, Ishii K. Surgical outcomes of spinal fusion for osteoporotic thoracolumbar vertebral fractures in patients with Parkinson's disease: what is the impact of Parkinson's disease on surgical outcome? BMC Musculoskelet Disord 2019; 20:103. [PMID: 30851739 PMCID: PMC6408814 DOI: 10.1186/s12891-019-2473-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 02/21/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To date, there have been little published data on surgical outcomes for patients with PD with thoracolumbar OVF. We conducted a retrospective multicenter study of registry data to investigate the outcomes of fusion surgery for patients with Parkinson's disease (PD) with osteoporotic vertebral fracture (OVF) in the thoracolumbar junction. METHODS Retrospectively registered data were collected from 27 universities and their affiliated hospitals in Japan. In total, 26 patients with PD (mean age, 76 years; 3 men and 23 women) with thoracolumbar OVF who underwent spinal fusion with a minimum of 2 years of follow-up were included (PD group). Surgical invasion, perioperative complications, radiographic sagittal alignment, mechanical failure (MF) related to instrumentation, and clinical outcomes were evaluated. A control group of 296 non-PD patients (non-PD group) matched for age, sex, distribution of surgical procedures, number of fused segments, and follow-up period were used for comparison. RESULTS The PD group showed higher rates of perioperative complications (p < 0.01) and frequency of delirium than the non-PD group (p < 0.01). There were no significant differences in the degree of kyphosis correction, frequency of MF, visual analog scale of the symptoms, and improvement according to the Japanese Orthopaedic Association scoring system between the two groups. However, the PD group showed a higher proportion of non-ambulators and dependent ambulators with walkers at the final follow-up (p < 0.01). CONCLUSIONS A similar surgical strategy can be applicable to patients with PD with OVF in the thoracolumbar junction. However, physicians should pay extra attention to intensive perioperative care to prevent various adverse events and implement a rehabilitation regimen to regain walking ability.
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Affiliation(s)
- Kei Watanabe
- Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachi Dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan.
| | - Keiichi Katsumi
- Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachi Dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Masayuki Ohashi
- Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachi Dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Yohei Shibuya
- Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachi Dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Tomohiro Izumi
- Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachi Dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Toru Hirano
- Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachi Dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Naoto Endo
- Department of Orthopedic Surgery, Niigata University Medical and Dental General Hospital, 1-757 Asahimachi Dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Tomoya Yamashita
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Hiroyasu Fujiwara
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Yukitaka Nagamoto
- Department of Orthopaedic Surgery, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Yuji Matsuoka
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hidekazu Suzuki
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hirosuke Nishimura
- Department of Orthopaedic Surgery, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hidetomi Terai
- Department of Orthopaedic Surgery, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Koji Tamai
- Department of Orthopaedic Surgery, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Atsushi Tagami
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, Nagasaki, 852-8501, Japan
| | - Syuta Yamada
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, Nagasaki, 852-8501, Japan
| | - Shinji Adachi
- Department of Orthopaedic Surgery, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, Nagasaki, 852-8501, Japan
| | - Toshitaka Yoshii
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Shuta Ushio
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Katsumi Harimaya
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Kenichi Kawaguchi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Nobuhiko Yokoyama
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Hidekazu Oishi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Toshiro Doi
- Department of Orthopaedic Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812-8582, Japan
| | - Atsushi Kimura
- Department of Orthopaedic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke City, Tochigi, 329-0498, Japan
| | - Hirokazu Inoue
- Department of Orthopaedic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke City, Tochigi, 329-0498, Japan
| | - Gen Inoue
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Masayuki Miyagi
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Wataru Saito
- Department of Orthopaedic Surgery, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Atsushi Nakano
- Department of Orthopaedic Surgery, Osaka Medical College, 2-7 Daigakumachi, Takatsuki City, Osaka, 569-0801, Japan
| | - Daisuke Sakai
- Department of Orthopaedic Surgery, Tokai University, 143 Shimokasuya, Isehara City, Kanagawa, 259-1193, Japan
| | - Tadashi Nukaga
- Department of Orthopaedic Surgery, Tokai University, 143 Shimokasuya, Isehara City, Kanagawa, 259-1193, Japan
| | - Shota Ikegami
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Masayuki Shimizu
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Toshimasa Futatsugi
- Department of Orthopaedic Surgery, Shinshu University, 3-1-1, Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Takeo Furuya
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Sumihisa Orita
- Department of Orthopaedic Surgery, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, 260-8670, Japan
| | - Shiro Imagama
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Kei Ando
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Kazuyoshi Kobayashi
- Department of Orthopaedic Surgery, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8560, Japan
| | - Katsuhito Kiyasu
- Department of Orthopaedic Surgery, Kochi University, Oko-cho Kohasu, Nankoku City, Kochi, 783-8505, Japan
| | - Hideki Murakami
- Department of Orthopaedic Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa City, Ishikawa, 920-8641, Japan
| | - Katsuhito Yoshioka
- Department of Orthopaedic Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa City, Ishikawa, 920-8641, Japan
| | - Shoji Seki
- Department of Orthopaedic Surgery, University of Toyama, 2630 Sugitani, Toyama City, Toyama, 930-0194, Japan
| | - Michio Hongo
- Department of Orthopaedic Surgery, Akita University, 1-1-1 Hondo, Akita City, Akita, 010-8543, Japan
| | - Kenichiro Kakutani
- Department of Orthopaedic Surgery, Kobe University, 7-5-1 Kusunoki-cho, chuou-ku, Kobe City, Hyogo, 650-0017, Japan
| | - Takashi Yurube
- Department of Orthopaedic Surgery, Kobe University, 7-5-1 Kusunoki-cho, chuou-ku, Kobe City, Hyogo, 650-0017, Japan
| | - Yasuchika Aoki
- Department of Orthopaedic Surgery, Eastern Chiba Medical Center, 3-6-2 Okayamadai, Togane City, Chiba, 283-8686, Japan
| | - Masashi Oshima
- Department of Orthopaedic Surgery, Nihon University Itabashi Hospital, 30-1 Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Masahiko Takahata
- Department of Orthopaedic Surgery, Hokkaido University, North-15, West-7, Kita-ku, Sapporo City, Hokkaido, 060-8638, Japan
| | - Akira Iwata
- Department of Orthopaedic Surgery, Hokkaido University, North-15, West-7, Kita-ku, Sapporo City, Hokkaido, 060-8638, Japan
| | - Hirooki Endo
- Department of Orthopaedic Surgery, Iwate Medical University, 19-1 Uchimaru, Morioka City, Iwate, 020-8505, Japan
| | - Tetsuya Abe
- Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8577, Japan
| | - Toshinori Tsukanishi
- Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8577, Japan
| | - Kazuyoshi Nakanishi
- Department of Orthopaedic Surgery, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima, 734-8551, Japan
| | - Kota Watanabe
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tomohiro Hikata
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Satoshi Suzuki
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Norihiro Isogai
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Orthopaedic Surgery, International University of Health and Welfare School of Medicine, Mita, Minato-ku, Tokyo, 108-8329, Japan
| | - Eijiro Okada
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Haruki Funao
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Orthopaedic Surgery, International University of Health and Welfare School of Medicine, Mita, Minato-ku, Tokyo, 108-8329, Japan
| | - Seiji Ueda
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yuta Shiono
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kenya Nojiri
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Naobumi Hosogane
- Department of Orthopaedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa City, Saitama, 359-8513, Japan.,Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Ken Ishii
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Orthopaedic Surgery, International University of Health and Welfare School of Medicine, Mita, Minato-ku, Tokyo, 108-8329, Japan
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37
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Nishimura H, Fukami S, Endo K, Suzuki H, Sawaji Y, Seki T, Matsuoka Y, Akimoto J, Yamamoto K. A Case of Rapidly-Progressing Cervical Spine Subependymoma with Atypical Features. Spine Surg Relat Res 2019; 3:91-94. [PMID: 31435558 PMCID: PMC6690116 DOI: 10.22603/ssrr.2018-0005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 04/17/2018] [Indexed: 11/05/2022] Open
Abstract
This was a study of the case of a 60-year-old woman who presented with a six-month history of headache and numbness radiating to the right arm. MRI revealed a fusiform intramedullary spinal tumor spanning C2 to C5 at the hospital where she first presented. As her right upper limb weakness had presented gradually, she visited our hospital after one and a half years. Neurological examination revealed muscle weakness in the right deltoid, but no sensory disturbance. The patient underwent a C2-C6 total laminectomy and posterior midline myelotomy from the posterior median fissure of the spinal cord. The intraoperative histological diagnosis was glioma. Pathological findings in low magnification demonstrated clusters of small uniform nuclei embedded in a dense and fibrillary matrix in hematoxylin-eosin staining (H.E.). On immunohistochemical staining, the tumor cells were weakly positive for glial fibrillary acidic protein (GFAP), but negative for the epithelial membrane antigen (EMA). The histopathological findings were consistent with the diagnosis of a subependymoma. However, the MIB-1 labeling index was of moderately high level up to approximately 8%. In this case, we performed total resection because the tumor had rapidly increased in size and was of atypical form in histological findings. It should be minded that some of subependymomas have a possibility of rapidly increasing in size with progressing neurological deficits.
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Affiliation(s)
- Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Shinjiro Fukami
- Department of Neurosurgery, Tokyo Medical University, Tokyo, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takeshi Seki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Jiro Akimoto
- Department of Neurosurgery, Tokyo Medical University, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
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38
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Senoo S, Yoshida K, Miyawaki D, Ishihara T, Nishikawa R, Inoue Y, Nishimura H, Okamoto Y, Nishimura Y, Sasaki R. Treatment Outcomes of Radiation Therapy or Chemoradiotherapy for Postoperative Locoregional Recurrence of Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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39
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Tamai K, Terai H, Suzuki A, Nakamura H, Watanabe K, Katsumi K, Ohashi M, Shibuya Y, Izumi T, Hirano T, Kaito T, Yamashita T, Fujiwara H, Nagamoto Y, Matsuoka Y, Suzuki H, Nishimura H, Tagami A, Yamada S, Adachi S, Yoshii T, Ushio S, Harimaya K, Kawaguchi K, Yokoyama N, Oishi H, Doi T, Kimura A, Inoue H, Inoue G, Miyagi M, Saito W, Nakano A, Sakai D, Nukaga T, Ikegami S, Shimizu M, Futatsugi T, Ohtori S, Furuya T, Orita S, Imagama S, Ando K, Kobayashi K, Kiyasu K, Murakami H, Yoshioka K, Seki S, Hongo M, Kakutani K, Yurube T, Aoki Y, Oshima M, Takahata M, Iwata A, Endo H, Abe T, Tsukanishi T, Nakanishi K, Watanabe K, Hikata T, Suzuki S, Isogai N, Okada E, Funao H, Ueda S, Shiono Y, Nojiri K, Hosogane N, Ishii K. Risk Factors for Proximal Junctional Fracture Following Fusion Surgery for Osteoporotic Vertebral Collapse with Delayed Neurological Deficits: A Retrospective Cohort Study of 403 Patients. Spine Surg Relat Res 2018; 3:171-177. [PMID: 31435571 PMCID: PMC6690093 DOI: 10.22603/ssrr.2018-0068] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 09/17/2018] [Indexed: 11/29/2022] Open
Abstract
Introduction Approximately 3% of osteoporotic vertebral fractures develop osteoporotic vertebral collapse (OVC) with neurological deficits, and such patients are recommended to be treated surgically. However, a proximal junctional fracture (PJFr) following surgery for OVC can be a serious concern. Therefore, the aim of this study is to identify the incidence and risk factors of PJFr following fusion surgery for OVC. Methods This study retrospectively analyzed registry data collected from facilities belonging to the Japan Association of Spine Surgeons with Ambition (JASA) in 2016. We retrospectively analyzed 403 patients who suffered neurological deficits due to OVC below T10 and underwent corrective surgery; only those followed up for ≥2 years were included. Potential risk factors related to the PJFr and their cut-off values were calculated using multivariate logistic regression analysis and receiver operating characteristic (ROC) analysis. Results Sixty-three patients (15.6%) suffered PJFr during the follow-up (mean 45.7 months). In multivariate analysis, the grade of osteoporosis (grade 2, 3: adjusted odds ratio (aOR) 2.92; p=0.001) and lower instrumented vertebra (LIV) level (sacrum: aOR 6.75; p=0.003) were independent factors. ROC analysis demonstrated that lumbar bone mineral density (BMD) was a predictive factor (area under curve: 0.72, p=0.035) with optimal cut-off value of 0.61 g/cm2 (sensitivity, 76.5%; specificity, 58.3%), but that of the hip was not (p=0.228). Conclusions PJFr was found in 16% cases within 4 years after surgery; independent risk factors were severe osteoporosis and extended fusion to the sacrum. The lumbar BMD with cut-off value 0.61 g/cm2 may potentially predict PJFr. Our findings can help surgeons select perioperative adjuvant therapy, as well as a surgical strategy to prevent PJFr following surgery.
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Affiliation(s)
- Koji Tamai
- Department of Orthopaedic Surgery, Osaka City University, Osaka City, Japan
| | - Hidetomi Terai
- Department of Orthopaedic Surgery, Osaka City University, Osaka City, Japan
| | - Akinobu Suzuki
- Department of Orthopaedic Surgery, Osaka City University, Osaka City, Japan
| | - Hiroaki Nakamura
- Department of Orthopaedic Surgery, Osaka City University, Osaka City, Japan
| | - Kei Watanabe
- Department of Orthopaedic Surgery, Niigata University, Niigata City, Japan
| | - Keiichi Katsumi
- Department of Orthopaedic Surgery, Niigata University, Niigata City, Japan
| | - Masayuki Ohashi
- Department of Orthopaedic Surgery, Niigata University, Niigata City, Japan
| | - Yohei Shibuya
- Department of Orthopaedic Surgery, Niigata University, Niigata City, Japan
| | - Tomohiro Izumi
- Department of Orthopaedic Surgery, Niigata University, Niigata City, Japan
| | - Toru Hirano
- Department of Orthopaedic Surgery, Niigata University, Niigata City, Japan
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University, Suita City, Japan
| | - Tomoya Yamashita
- Department of Orthopaedic Surgery, Osaka University, Suita City, Japan
| | - Hiroyasu Fujiwara
- Department of Orthopaedic Surgery, Osaka University, Suita City, Japan
| | - Yukitaka Nagamoto
- Department of Orthopaedic Surgery, Osaka University, Suita City, Japan
| | - Yuji Matsuoka
- Department of Orthopaedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopaedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopaedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Atsushi Tagami
- Department of Orthopaedic Surgery, Nagasaki University, Nagasaki City, Japan
| | - Syuta Yamada
- Department of Orthopaedic Surgery, Nagasaki University, Nagasaki City, Japan
| | - Shinji Adachi
- Department of Orthopaedic Surgery, Nagasaki University, Nagasaki City, Japan
| | - Toshitaka Yoshii
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shuta Ushio
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Katsumi Harimaya
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka city, Japan
| | - Kenichi Kawaguchi
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka city, Japan
| | - Nobuhiko Yokoyama
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka city, Japan
| | - Hidekazu Oishi
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka city, Japan
| | - Toshiro Doi
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka city, Japan
| | - Atsushi Kimura
- Department of Orthopaedic Surgery, Jichi Medical University, Shimotsuke city, Japan
| | - Hirokazu Inoue
- Department of Orthopaedic Surgery, Jichi Medical University, Shimotsuke city, Japan
| | - Gen Inoue
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara city, Japan
| | - Masayuki Miyagi
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara city, Japan
| | - Wataru Saito
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara city, Japan
| | - Atsushi Nakano
- Department of Orthopaedic Surgery, Osaka Medical College, Takatsuki city, Japan
| | - Daisuke Sakai
- Department of Orthopaedic Surgery, Tokai University, Isehara city, Japan
| | - Tadashi Nukaga
- Department of Orthopaedic Surgery, Tokai University, Isehara city, Japan
| | - Shota Ikegami
- Department of Orthopaedic Surgery, Shinshu University, Matsumoto city, Japan
| | - Masayuki Shimizu
- Department of Orthopaedic Surgery, Shinshu University, Matsumoto city, Japan
| | - Toshimasa Futatsugi
- Department of Orthopaedic Surgery, Shinshu University, Matsumoto city, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Chiba University, Chiba city, Japan
| | - Takeo Furuya
- Department of Orthopaedic Surgery, Chiba University, Chiba city, Japan
| | - Sumihisa Orita
- Department of Orthopaedic Surgery, Chiba University, Chiba city, Japan
| | - Shiro Imagama
- Department of Orthopaedic Surgery, Nagoya University, Nagoya city, Japan
| | - Kei Ando
- Department of Orthopaedic Surgery, Nagoya University, Nagoya city, Japan
| | | | - Katsuhito Kiyasu
- Department of Orthopaedic Surgery, Kochi University, Nankoku city, Japan
| | - Hideki Murakami
- Department of Orthopaedic Surgery, Kanazawa University, Kanazawa city, Japan
| | - Katsuhito Yoshioka
- Department of Orthopaedic Surgery, Kanazawa University, Kanazawa city, Japan
| | - Shoji Seki
- Department of Orthopaedic Surgery, University of Toyama, Toyama city, Japan
| | - Michio Hongo
- Department of Orthopaedic Surgery, Akita University, Akita city, Japan
| | | | - Takashi Yurube
- Department of Orthopaedic Surgery, Kobe University, Kobe city, Japan
| | - Yasuchika Aoki
- Department of Orthopaedic Surgery, Eastern Chiba Medical Center, Togane city, Japan
| | - Masashi Oshima
- Department of Orthopaedic Surgery, Nihon University Itabashi Hospital, Tokyo, Japan
| | - Masahiko Takahata
- Department of Orthopaedic Surgery, Hokkaido University, Sapporo city, Japan
| | - Akira Iwata
- Department of Orthopaedic Surgery, Hokkaido University, Sapporo city, Japan
| | - Hirooki Endo
- Department of Orthopaedic Surgery, Iwate Medical University, Morioka city, Japan
| | - Tetsuya Abe
- Department of Orthopaedic Surgery, University of Tsukuba, Tsukuba city, Japan
| | | | - Kazuyoshi Nakanishi
- Department of Orthopaedic Surgery, Hiroshima University, Hiroshima city, Japan
| | - Kota Watanabe
- Department of Orthopaedic Surgery, Keio University, Tokyo, Japan
| | - Tomohiro Hikata
- Department of Orthopaedic Surgery, Keio University, Tokyo, Japan
| | - Satoshi Suzuki
- Department of Orthopaedic Surgery, Keio University, Tokyo, Japan
| | - Norihiro Isogai
- Department of Orthopaedic Surgery, Keio University, Tokyo, Japan
| | - Eijiro Okada
- Department of Orthopaedic Surgery, Keio University, Tokyo, Japan
| | - Haruki Funao
- Department of Orthopaedic Surgery, Keio University, Tokyo, Japan.,Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Tokyo, Japan
| | - Seiji Ueda
- Department of Orthopaedic Surgery, Keio University, Tokyo, Japan
| | - Yuta Shiono
- Department of Orthopaedic Surgery, Keio University, Tokyo, Japan
| | - Kenya Nojiri
- Department of Orthopaedic Surgery, Keio University, Tokyo, Japan
| | - Naobumi Hosogane
- Department of Orthopaedic Surgery, National Defense Medical College, Tokorozawa city, Japan.,Department of Orthopaedic Surgery, Keio University, Tokyo, Japan
| | - Ken Ishii
- Department of Orthopaedic Surgery, Keio University, Tokyo, Japan.,Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Tokyo, Japan
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Tatarano S, Enokida H, Yamada Y, Nishimura H, Nakagawa M. Living Kidney Donor With Small Lymphocytic Lymphoma at the Time of Donation: A Case Report. Transplant Proc 2018; 50:2581-2582. [PMID: 30316403 DOI: 10.1016/j.transproceed.2018.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 03/19/2018] [Accepted: 04/06/2018] [Indexed: 12/01/2022]
Abstract
Living kidney donor guidelines recommend that donors in whom a malignancy is diagnosed should be excluded. Although preoperative screening for malignancies was performed, we experienced a case of living donor with small lymphocytic lymphoma (SLL) at the time of donation. A 53-year-old woman was referred to our hospital for a kidney donation to her son. She had no past medical history of malignancy. We screened the patient using medical examinations, but there was no obvious presence of malignancy. Although preoperative computed tomography showed a small lymph node swelling at the left renal hilum, we diagnosed it as an insignificant lymph node. When a laparoscopic donor nephrectomy was performed, however, we recognized the small lymph node during the surgery and performed a lymphadenectomy. Postoperatively, pathologic examination showed that the small node was lymphocytic lymphoma, known as a low malignant potential disease. Currently, there is no presence of malignancy transmission with the recipient. To the best of our knowledge, this is the first case report of living kidney donor with SLL. Although SLL is considered a low-grade malignancy, it is crucial to follow it carefully in both the donor and the recipient.
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Affiliation(s)
- S Tatarano
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
| | - H Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Y Yamada
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - H Nishimura
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - M Nakagawa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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Sakai K, Inoue M, Nishimura H, Mikami S, Kuwabara Y, Kojima A, Toda M, Kobayashi Y, Kikuchi S, Hirata Y, Kyoyama H, Moriyama G, Gemma A, Uematsu K. P2.06-31 Inhibition of Heat Shock Protein 70 Function Suppresses Proliferation in Mesothelioma Cells. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Abe Y, Nakajima N, Sakaguchi Y, Arikawa Y, Mirfayzi SR, Fujioka S, Taguchi T, Mima K, Yogo A, Nishimura H, Shiraga H, Nakai M. A multichannel gated neutron detector with reduced afterpulse for low-yield neutron measurements in intense hard X-ray backgrounds. Rev Sci Instrum 2018; 89:10I114. [PMID: 30399813 DOI: 10.1063/1.5039436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 07/11/2018] [Indexed: 06/08/2023]
Abstract
A design of multichannel gated photomultiplier tube (PMT) is presented for the 960-channel neutron time-of-flight detector at the Institute of Laser Engineering of Osaka University. This is important for the fusion science and the nuclear photonics where intense hard X-rays are generated from the interaction of ultra-short laser pulse of petawatt power density with matter. The hard X-rays often overload PMTs and cause signal-induced background noises called afterpulses, making the detection of subsequent neutrons impossible. For this reason, the PMTs are coupled with an electrical time-gating (ETG) system to avoid overloading. The ETG system disables the PMT by modulating the dynode potential during the primary X-ray flash. An after-pulsing suppression technique is demonstrated by applying a reverse bias voltage between the photocathode and the first dynode. The presented multichannel scheme provides a gate response time of 80 ns, a signal cutoff ratio of 2.5 × 102, and requires reasonably low power consumption.
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Affiliation(s)
- Y Abe
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | - N Nakajima
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | | | - Y Arikawa
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | - S R Mirfayzi
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | - S Fujioka
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | - T Taguchi
- Setsunan University, Osaka 572-8508, Japan
| | - K Mima
- Graduate School for the Creation of New Photonics Industries, Shizuoka 431-1202, Japan
| | - A Yogo
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | - H Nishimura
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | - H Shiraga
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | - M Nakai
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
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Arikawa Y, Matsubara S, Kishimoto H, Abe Y, Sakata S, Morace A, Mizutani R, Nishibata J, Yogo A, Nakai M, Shiraga H, Nishimura H, Fujioka S, Kodama R. A large-aperture high-sensitivity avalanche image intensifier panel. Rev Sci Instrum 2018; 89:10I128. [PMID: 30399964 DOI: 10.1063/1.5037623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/19/2018] [Indexed: 06/08/2023]
Abstract
A large-aperture high-sensitivity image intensifier panel that consists of an avalanche photodiode array and a light-emitting diode array is presented. The device has 40% quantum efficiency, over 104 optical gain, and 80-ns time resolution. The aperture size of the device is 20 cm, and with the current manufacturing process, it can be scaled to arbitrarily larger sizes. The device can intensify the light from a single particle scintillation emission to an eye-visible bright flash. The image resolution of the device is currently limited by the size of the avalanche photodiode that is 2 mm, although it can be scaled to smaller sizes in the near future. The image intensifier is operated at a small voltage, typically +57 V. The device can be applied to various applications, such as scintillation imaging, night vision cameras, and an image converter from non-visible light (such as infrared or ultraviolet) to visible light.
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Affiliation(s)
- Y Arikawa
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - S Matsubara
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - H Kishimoto
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - Y Abe
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - S Sakata
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - A Morace
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - R Mizutani
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - J Nishibata
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - A Yogo
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - M Nakai
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - H Shiraga
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - H Nishimura
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - S Fujioka
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - R Kodama
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
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Matsuoka Y, Suzuki H, Endo K, Sawaji Y, Murata K, Nishimura H, Tanaka H, Yamamoto K. Small sagittal vertical axis accompanied with lumbar hyperlordosis as a risk factor for developing postoperative cervical kyphosis after expansive open-door laminoplasty. J Neurosurg Spine 2018; 29:176-181. [DOI: 10.3171/2017.12.spine17557] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVEPreoperative positive cervical sagittal imbalance and global sagittal imbalance are risk factors for postoperative cervical kyphosis after expansive open-door cervical laminoplasty (ELAP). The purpose of this study was to investigate the relationship between the incidence of postoperative cervical kyphosis after ELAP and the preoperative global sagittal spinal alignment in patients with cervical spondylotic myelopathy (CSM) without spinal sagittal imbalance.METHODSAmong 84 consecutive patients who underwent ELAP for CSM at the authors’ hospital, 43 patients without preoperative cervical kyphosis (C2–7 angle ≥ 0°) and spinal sagittal imbalance (C2–7 sagittal vertical axis [SVA] ≤ 80 mm and C-7 SVA ≤ 95 mm) were included in the study. The global spinal sagittal parameters were measured on lateral whole-spine standing radiographs preoperatively and at 1 year postoperatively. The difference in preoperative global sagittal spinal alignment between the postoperative cervical lordosis group and the cervical kyphosis group was analyzed.RESULTSThe incidence of postoperative cervical kyphosis after ELAP was 25.6% (11 of 43 cases). Thirty-two patients (16 men and 16 women; mean age 67.7 ± 12.0 years) had lordosis, and 11 (7 men and 4 women; mean age 67.2 ± 9.6 years) had kyphosis. The preoperative C-7 SVA and pelvic incidence minus lumbar lordosis (PI−LL) in the kyphosis group were significantly smaller than those in the lordosis group (p < 0.05). The smaller C-7 SVA accompanied by a small PI−LL, the “truncal negative offset,” led to postoperative cervical kyphosis due to posterior structural weakening by ELAP.CONCLUSIONSIn patients with CSM without preoperative cervical and global spinal sagittal imbalance, a small SVA accompanied by lumbar hyperlordosis is the characteristic alignment leading to postoperative cervical kyphosis after ELAP.
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Matsuoka Y, Endo K, Suzuki H, Sawaji Y, Nishimura H, Takamatsu T, Kojima O, Murata K, Seki T, Horie S, Konishi T, Yamamoto K. Postoperative Radiographic Early-Onset Adjacent Segment Degeneration after Single-Level L4-L5 Posterior Lumbar Interbody Fusion in Patients without Preoperative Severe Sagittal Spinal Imbalance. Asian Spine J 2018; 12:743-748. [PMID: 30060385 PMCID: PMC6068422 DOI: 10.31616/asj.2018.12.4.743] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 12/17/2017] [Indexed: 11/23/2022] Open
Abstract
Study Design Retrospective study. Purpose To investigate the relationship between preoperative total spinal sagittal alignment and the early onset of adjacent segment degeneration (ASD) after single-level posterior lumbar interbody fusion (PLIF) in patients with normal sagittal spinal alignment. Overview of Literature Postoperative early-onset ASD is one of the complications after L4–L5 PLIF, a common surgical procedure for lumbar degenerative disease in patents without severe sagittal imbalance. A better understanding of the preoperative characteristics of total spinal sagittal alignment associated with early-onset ASD could help prevent the condition. Methods The study included 70 consecutive patients diagnosed with lumbar degenerative disease who underwent single-level L4–L5 PLIF between 2011 and 2015. They were divided into two groups based on the radiographic progression of L3–L4 degeneration after 1-year follow-up: the ASD and the non-ASD (NASD) group. The following radiographic parameters were preoperatively and postoperatively measured: sagittal vertebral axis (SVA), thoracic kyphosis (TK), lumbar lordosis, pelvic tilt, and pelvic incidence (PI). Results Eight of the 70 patients (11%) experienced ASD after PLIF (three males and five females; age, 64.4±7.7 years). The NASD group comprised 20 males and 42 females (age, 67.7±9.3 years). Six patients of the ASD group showed decreased L3–L4 disc height, one had L3–L4 local kyphosis, and one showed both changes. Preoperative SVA, PI, and TK were significantly smaller in the ASD group than in the NASD group (p <0.05). Conclusions A preoperative small SVA and TK with small PI were the characteristic alignments for the risk of early-onset ASD in patients without preoperative severe sagittal spinal imbalance undergoing L4–L5 single-level PLIF.
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Affiliation(s)
- Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Osamu Kojima
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takeshi Seki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Shinji Horie
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takamitsu Konishi
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
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Kusakabe T, Endo K, Nakamura I, Suzuki H, Nishimura H, Fukushima S, Yamamoto K. Bacille Calmette-Guérin (BCG) spondylitis with adjacent mycotic aortic aneurysm after intravesical BCG therapy: a case report and literature review. BMC Infect Dis 2018; 18:290. [PMID: 29954321 PMCID: PMC6025820 DOI: 10.1186/s12879-018-3205-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 06/22/2018] [Indexed: 11/10/2022] Open
Abstract
Background Although intravesical bacille Calmette-Guérin (BCG) therapy is accepted as an effective treatment for bladder cancer, serious complications may occur in rare cases. To date, only 4 cases have been reported in which the patient developed a combination of mycotic aortic aneurysm and BCG spondylitis. Accurate diagnosis of BCG spondylitis is important because it is an iatrogenic disease, and its treatment is different from usual tuberculous spondylitis. However, distinguishing BCG spondylitis from usual tuberculous spondylitis is very difficult and takes a long time. In this study, we were able to suspect BCG spondylitis at an early stage from the result of the interferon-gamma release assay (IGRA). Case presentation We encountered a case of BCG spondylitis with adjacent mycotic aortic aneurysm after intravesical BCG therapy in a 76-year-old man. We performed a 2-stage operation to obtain spine stabilization and replace the aneurysm with a synthetic graft. We started multidrug therapy with antituberculosis medication, excluding pyrazinamide, because the patient’s history of BCG therapy, negative IGRA, and positive of tuberculosis-polymerase chain reaction (Tb-PCR) suggested that the pathogenic bacteria of the spondylitis was BCG. Eventually the bacterial strain was identified as BCG by PCR-based genomic deletion analysis. Conclusions BCG infection should be considered in patients who have been treated with BCG therapy, even if the treatment was performed several months to several years previously. In the case of a patient with a history of BCG therapy, a positive Tb-PCR result and negative IGRA result probably suggest BCG infections, if the possibility of false-negative IGRA result can be excluded.
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Affiliation(s)
- Takuya Kusakabe
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Itaru Nakamura
- Department of Infection Prevention and Control, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Shinji Fukushima
- Department of Infection Prevention and Control, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
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Horie S, Sawaji Y, Endo K, Suzuki H, Matsuoka Y, Nishimura H, Seki T, Yamamoto K. Factors associated with bone metabolism in patients with cervical ossification of the posterior longitudinal ligament accompanied with diffuse idiopathic skeletal hyperostosis. SICOT J 2018; 4:7. [PMID: 29547116 PMCID: PMC5855498 DOI: 10.1051/sicotj/2017061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 12/15/2017] [Indexed: 11/14/2022] Open
Abstract
INTRODUCTION Diffuse idiopathic skeletal hyperostosis (DISH) and ossification of the posterior longitudinal ligament (OPLL) are both characterized as ossification in paravertebral ligaments and sometimes present simultaneously, however, the bone metabolism in patients with cervical OPLL accompanying/not accompanying DISH has not well been studied. Thus, a retrospective analysis was performed to understand any differences in bone metabolism in these patients. METHODS Male patients who underwent surgery for OPLL were divided into two groups based on the presence or absence of DISH (OD and O group, respectively). Patients with cervical spondylosis comprised the control group (CS group). Bone mineral density (BMD) and bone metabolism factors were compared among the groups. RESULTS The OD and O groups had significantly higher body mass indexes (BMIs) than did the CS group. Morphologically, the number of continuous type of OPLL was high in the OD group whereas that of segmental type was higher in the O group. The OD and O group had greater BMD than the CS group. Both TRACP-5b and P1NP were tended to be lower in the OD group whereas Ca and P concentrations were similar level among the groups. Intact parathyroid hormone in OD group was significantly higher than CS group. DISCUSSION Patients with OPLL accompanying DISH had significantly higher BMD whereas they tend to be lower in bone turnover. Significantly higher i-PTH levels was found in the OD group and would be the characteristic blood marker, but further research on the relationship between DISH and PTH was necessary.
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Affiliation(s)
- Shinji Horie
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Takeshi Seki
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
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Matsuoka Y, Endo K, Nishimura H, Suzuki H, Sawaji Y, Takamatsu T, Seki T, Murata K, Konishi T, Yamamoto K. Cervical Kyphotic Deformity after Laminoplasty in Patients with Cervical Ossification of Posterior Longitudinal Ligament with Normal Sagittal Spinal Alignment. Spine Surg Relat Res 2018; 2:210-214. [PMID: 31440670 PMCID: PMC6698525 DOI: 10.22603/ssrr.2017-0078] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 12/03/2017] [Indexed: 11/23/2022] Open
Abstract
Background Preoperative cervico-thoracic kyphosis and cervical regional positive imbalance are the risk factors for postoperative cervical kyphosis after expansive laminoplasty (ELAP). However, the relationship between preoperative global sagittal spinal alignment and postoperative cervical kyphosis in patients with cervical ossification of the posterior longitudinal ligament (OPLL) is unclear. The purpose of this study was to investigate the relationship between the onset of postoperative cervical kyphosis after ELAP and the preoperative global spinal sagittal alignment in patients with OPLL with normal sagittal spinal alignment. Methods Sixty-nine consecutive patients without preoperative cervical kyphosis who underwent ELAP for OPLL and cervical spondylotic myelopathy (CSM) were enrolled. The global sagittal alignment radiography preoperatively and 1 year postoperatively were examined. The subjects were divided into a postoperative cervical lordosis group (LG) or a kyphosis group (KG) at 1 year postoperatively. The preoperative global sagittal spinal alignment between LG and KG in CSM and OPLL was compared. Results The occurrence of cervical kyphosis after ELAP was 7 of 27 cases (25.9%) in OPLL and 13 of 42 cases (31.0%) in CSM. In patients with CSM in the KG, C7 the sagittal vertical axis (SVA) was smaller than in the LG. In patients with cervical OPLL in the KG, C2-C7 angle, C2-C7 SVA, and thoracic kyphosis (TK) were smaller than those in the LG. In OPLL, the age of the KG was younger than that of LG; however, this was not a significant difference in CSM. Conclusion In patients with cervical OPLL without preoperative global spinal sagittal imbalance, preoperative small C2-C7 angle, C2-C7 SVA, TK, and younger age were typical characteristics of postoperative cervical kyphosis after ELAP.
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Affiliation(s)
- Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takeshi Seki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takamitsu Konishi
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
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Suzuki H, Endo K, Sawaji Y, Matsuoka Y, Nishimura H, Takamatsu T, Murata K, Seki T, Konishi T, Aihara T, Yamamoto K. Radiographic Assessment of Spinopelvic Sagittal Alignment from Sitting to Standing Position. Spine Surg Relat Res 2018; 2:290-293. [PMID: 31435536 PMCID: PMC6690107 DOI: 10.22603/ssrr.2017-0074] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 12/21/2017] [Indexed: 11/05/2022] Open
Abstract
Introduction Most people in modern societies spend the majority of their time sitting. However, sagittal spinal alignment is usually analyzed in the standing position. For understanding the symptoms associated with postural changes, this alignment is better to be analyzed in various positions. The purpose of this study was to investigate lumbo-pelvic relationships between standing up and sitting (sit-to-stand) motion. Methods The study subjects were 25 healthy young adult volunteers without any spinal symptoms. The following parameters were measured, namely, intervertebral range of motion (IV ROM), lumbar lordotic angle (L1L5), sacral slope (SS), pelvic tilt (PT), and pelvic incidence (PI), on lateral whole-spine radiographs while sitting upright, sitting anterior flexed (anteflexed), standing anteflexed, and standing upright. Results The measurements of spinopelvic parameters during sit-to-stand motion (sitting upright, sitting anteflexed, standing anteflexed, standing upright, respectively) were as follows: L1L5 (7.9, −4.4, 3.1, 31.9) and PT (31.5, 26.5, 11.9, 7.7). Regarding IV ROM, the lumbar segmental ROM after seat-off was wider than before seat-off (sitting anteflexed). In particular, the L4-L5 segments had a wide ROM from standing anteflexed to standing upright. Conclusions The pelvis was retroverted in the sitting upright position and gradually anteverted during sit-to-stand motion. Lumbar lordosis decreased in the sitting upright position, temporarily decreased further (sitting anteflexed), and then increased in the standing position (standing anteflexed and standing upright). The mechanical loads on lumbosacral segments were greater after seat-off due to the reverse movement between upper lumbar and pelvic segments.
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Affiliation(s)
- Hidekazu Suzuki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kenji Endo
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yasunobu Sawaji
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yuji Matsuoka
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hirosuke Nishimura
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Taichiro Takamatsu
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takeshi Seki
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takamitsu Konishi
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takato Aihara
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kengo Yamamoto
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
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Kondo H, Ogawa S, Nishimura H, Ono A. Massage therapy for home care patients using the health insurance system in Japan. Complement Ther Med 2018; 36:142-146. [PMID: 29458922 DOI: 10.1016/j.ctim.2018.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 01/04/2018] [Accepted: 01/04/2018] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES To clarify the status of home care massage services provided to patients. This will help in understanding how many patients utilize this service and the circumstances under which treatment is provided. DESIGN A retrospective study. SETTING Fifty-four acupuncture, moxibustion, and massage clinics. Participants were patients who had received home care massage for six months or more. We collected a total of 1587 responses from these 54 massage clinics; of these, 1415 responses (mean age = 79.1 ± 11.5 years) were valid (valid response rate 89.2%). MAIN OUTCOME MEASURES Actual patients and actual care services. RESULTS The most common disorder observed among patients who utilized home care massage services was cerebrovascular disease (at approximately 36%), while the second most common were arthropathy-related disorders (16.3%). Although most patients received massage, approximately 30% received manual therapy (e.g. manual correction) and hot fomentation as part of thermotherapy. Notably, only around 10% of patients received massage alone; the majority received treatment in combination with range of motion and muscle-strengthening exercises. CONCLUSIONS This study helped to clarify the actual state of patients receiving home care massage and the details of the massage services provided. This study clearly showed the treatment effectiveness of massage, which can be used by home medical care stakeholders to develop more effective interventions.
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Affiliation(s)
- H Kondo
- Course of Acupuncture and Moxibustion, Department of Health, Faculty of Health Sciences, Tsukuba University of Technology, Japan; Japan Acupuncture, Moxibustion and Massage Association, Japan.
| | - S Ogawa
- Japan Acupuncture, Moxibustion and Massage Association, Japan
| | - H Nishimura
- Japan Acupuncture, Moxibustion and Massage Association, Japan
| | - A Ono
- Japan Acupuncture, Moxibustion and Massage Association, Japan
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