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Şerifoğlu L, Etli MU. Prospective Investigation of the Posterior Longitudinal Ligament and Disc Complex after Posterior Stabilization and Decompression Surgery in Patients With Non-OPLL (Ossification of the Posterior Longitudinal Ligament) Cervical Spondylotic Myelopathy. World Neurosurg 2024; 184:e384-e389. [PMID: 38302004 DOI: 10.1016/j.wneu.2024.01.133] [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] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/03/2024]
Abstract
BACKGROUND Cervical spondylotic myelopathy (CSM) is a prevalent cause of spinal cord dysfunction in adults, primarily from degenerative changes. The efficacy of treatment strategies, especially surgical approaches, remains debated. OBJECTIVE This study aimed to assess the long-term impact of posterior fusion laminectomy on the posterior longitudinal ligament (PLL) thickness, disc complex, and myelomalacia signal changes in CSM patients. METHODS A single-centre, prospective study from January 2020 to December 2021 included CSM patients without ossified posterior longitudinal ligament (OPLL). Magnetic resonance imaging (MRI) data from baseline, 6, and 12 months postoperatively were collected. Measurements on the MRI were performed using the Osirix MD software, focusing on the PLL width, myelopathic foci dimensions, and canal diameter. RESULTS Out of the 82 initially enrolled patients, 64 were considered for analysis. Postoperatively, a significant reduction in PLL width and myelopathic foci dimensions was observed, alongside a considerable increase in the canal diameter. Clinical outcomes based on the Modified Japanese Orthopaedic Association (mJOA) scale also showcased marked improvements post-surgery. CONCLUSIONS Posterior fusion laminectomy effectively reduces anterior pressure in CSM patients. This treatment may represent an optimal surgical approach for selected CSM cases. Furthermore, more extensive studies with extended follow-up are advocated.
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Affiliation(s)
- Luay Şerifoğlu
- Department of Neurosurgery, Ümraniye Training and Research Hospital, Istanbul, Turkey.
| | - Mustafa Umut Etli
- Department of Neurosurgery, Ümraniye Training and Research Hospital, Istanbul, Turkey
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Liu C, Wang W, Li X, Shi B, Lu S. Preoperative Cervical Range of Motion in Flexion as a Risk Factor for Postoperative Cervical Sagittal Imbalance After Laminoplasty. Spine (Phila Pa 1976) 2024; 49:492-499. [PMID: 37798845 PMCID: PMC10927305 DOI: 10.1097/brs.0000000000004844] [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: 08/03/2023] [Accepted: 09/26/2023] [Indexed: 10/07/2023]
Abstract
STUDY DESIGN Retrospective study. OBJECTIVE To investigate factors associated with cervical sagittal imbalance (CSI) after cervical laminoplasty (LMP). SUMMARY OF BACKGROUND DATA Preoperative dynamic cervical sagittal alignment is an important predictor for changes in cervical sagittal alignment and clinical outcomes after LMP. However, the impact of preoperative dynamic cervical sagittal alignment on postoperative changes in the cervical sagittal vertical axis (cSVA) after LMP remains unclear. We hypothesized that preoperative cervical flexion and extension function are associated with the changes in cSVA and clinical outcomes and found potential risk factors for post-LMP CSI. PATIENTS AND METHODS Patients undergoing LMP at a single institution between January 2019 and December 2021 were retrospectively reviewed. The average follow-up period was 19 months. The parameters were collected before the surgery and at the final follow-up. We defined the changes in cSVA (△cSVA) ≤ -10 mm as the improvement group, -10 mm < △cSVA ≤ 10 mm as the stable group, and △cSVA > 10 mm as the deterioration group. Multivariate logistic regression was used to evaluate factors associated with postoperative CSI. The χ 2 test was used to compare categorical data between groups. T tests, analysis of variance, Kruskal-Wallis tests, and Mann-Whitney Wilcoxon tests were used to assess the differences between radiographic and clinical parameters among groups. A receiver operating characteristic curve analysis was used to identify optimal cutoff values. RESULTS The study comprised 102 patients with cervical spondylotic myelopathy. The Japanese Orthopedic Association recovery rate was better in the improvement group and a significant aggravation in neck pain was observed in the deterioration group after surgery. Cervical Flex range of motion (ROM; spine range of flexion) was significantly higher in the deterioration group. The multivariate logistic regression model suggested that greater Flex ROM and starting LMP at C3 were significant risk factors for postoperative deterioration of cervical sagittal balance. Receiver operating characteristic curves showed that the cutoff value for preoperative Flex ROM was 34.10°. CONCLUSION Preoperative dynamic cervical sagittal alignment influences postoperative cervical sagittal balance after LMP. Cervical LMP should be carefully considered for patients with a preoperative high Flex ROM, as CSI is likely to occur after surgery. LEVEL OF EVIDENCE Level 3.
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Affiliation(s)
- Chengxin Liu
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Wei Wang
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Xiangyu Li
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Bin Shi
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Shibao Lu
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
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Sharma R, Kumarasamy S, Tiwary SK, Kedia S, Sawarkar D, Doddamani R, Laythalling RK. Multiple spinal extradural arachnoid cysts presenting as compressive myelopathy in a teenager: case report and literature review with special emphasis on postoperative spine deformity in the current minimally invasive era. Childs Nerv Syst 2024; 40:729-747. [PMID: 37917405 DOI: 10.1007/s00381-023-06183-w] [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: 07/26/2023] [Accepted: 10/10/2023] [Indexed: 11/04/2023]
Abstract
INTRODUCTION Multiple synchronous spinal extradural arachnoid cysts are extremely rare in children and can lead to cord compression and disability. Multiple spinal extradural arachnoid cysts (SEDACs) in children with immature and growing spine need to be studied separately from multiple SEDACs in adults with mature and fully grown spine because of multiple surgical limitations in children (blood loss, surgery duration, long-term spinal stability after long segment exposure, etc.). MATERIAL AND METHODS We planned a non-systematic literature review of similar cases described in literature to analyse the pattern of presentation, management, and outcome of this surgically curable disease. RESULTS A total of 28 cases of paediatric multiple SEDACs in the age range of 5 months to 17 years and mean age of 11.54 years were analysed. Exposure was achieved by laminectomy in 9, laminoplastic laminotomy in 13, laminectomy in first surgery followed by laminoplasty in second surgery (re-exploration) in 1, hemilaminectomy in 2, and technique "not reported" in 3 children. Complete/near-complete recovery was seen in 27 (96.42%) children. Postoperative spine deformity was reported in 7 (25%) children and was progressive in 2 children during serial follow-up. CONCLUSIONS Symptomatic multiple synchronous SEDACs in children is a rare surgically curable condition. Sincere attempt to find out a dural defect in all cysts is a very important step in multiple SEDAC surgery. Total cyst wall excision with closure of all dural defects is the gold standard treatment for symptomatic cases. Laminoplasty is preferred for excision of multiple SEDACs in children to prevent postoperative spine deformity during long-term follow-up. Long serial follow-up for postoperative spine deformity is necessary.
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Affiliation(s)
- Rajeev Sharma
- Department of Neurosurgery, AIIMS, New Delhi, 110029, India.
| | | | - Shashi Kala Tiwary
- Department of Community Medicine, Armed Forces Medical College, Pune, India
| | - Shweta Kedia
- Department of Neurosurgery, AIIMS, New Delhi, 110029, India
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Guo S. Surgical treatment and outcome of haematomyelia with a traumatic cause in a dog and a cat. Vet Med Sci 2024; 10:e1377. [PMID: 38358058 PMCID: PMC10867873 DOI: 10.1002/vms3.1377] [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] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 01/09/2024] [Accepted: 01/29/2024] [Indexed: 02/16/2024] Open
Abstract
Two surgically treated haematomyelia cases were documented. One dog and one cat were presented for acute progressive paraplegia following a fall from height incident. Neurological examinations suggested a L4-S3 myelopathy in both cases. Radiography and magnetic resonance imaging in both cases revealed no fracture or subluxation of the spine, but well-defined intramedullary mass lesions in lower lumbar regions compatible with haemorrhage and haematoma formation. Exploratory surgeries were performed over the lesions. Dark-red friable masses were removed via myelotomy. Histopathological examinations revealed organizing haematomas at the acute to subacute stage. Postoperatively, both cases improved and regained ambulation. The dog walked normally but remained urinary and faecal incontinent 9 months after the surgery. The cat was continent and ambulatory with a paraparetic gait 5 months after the surgery. In both cases, the outcomes and the patients' quality of life were considered satisfactory by the owners.
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Tornabene D, Bini P, Gastaldi M, Vegezzi E, Asteggiano C, Marchioni E, Diamanti L. Neurological complications due to copper deficiency in the context of Wilson disease treatment: a case report with long-term follow-up and review of the literature. Neurol Sci 2024; 45:987-996. [PMID: 37851293 PMCID: PMC10858109 DOI: 10.1007/s10072-023-07126-8] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/10/2023] [Indexed: 10/19/2023]
Abstract
The objective is to investigate the presentation, complications, management, and outcomes of copper deficiency-induced neurological pathologies due to Wilson disease (WD) overtreatment. We examined the case of a WD patient who developed a low thoracic dorsal myelopathy due to chronic hypocupremia from excessive zinc therapy. A comprehensive literature review was conducted to identify similar cases. Ten additional cases of neurological pathology resulting from copper deficiency in the context of WD over-treatment were identified, all occurring during therapy with zinc salts. Myelopathy and peripheral neuropathy were the most common complications, while two additional groups reported leukoencephalopathy. Early cytopenia was often associated with copper deficiency-related neurological pathology appearing early in the context of copper deficiency. WD patients undergoing treatment, especially with zinc salts, should be closely monitored to prevent over-treatment and the consequent copper deficiency. Regular complete blood counts could provide early detection of copper deficiency, avoiding irreversible neurological damage. Swift recognition of new neurological signs not consistent with WD and timely discontinuation of the decoppering therapy are critical for improving outcomes. The optimal management, including the potential benefit of copper supplementation in patients with WD and subsequent therapy adjustments, remains unclear and necessitates further investigation. Despite the general poor functional neurological outcomes, there were some exceptions that warrant further exploration.
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Affiliation(s)
- Danilo Tornabene
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.
- IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy.
| | - Paola Bini
- IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | - Matteo Gastaldi
- IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | - Elisa Vegezzi
- IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | - Carlo Asteggiano
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | | | - Luca Diamanti
- IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
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Wu J, Sun Z, Ge Z, Zhang D, Xu J, Zhang R, Liu X, Zhao Q, Sun H. The efficacy of virtual reality technology for the postoperative rehabilitation of patients with cervical spondylotic myelopathy (CSM): a study protocol for a randomized controlled trial. Trials 2024; 25:133. [PMID: 38374040 PMCID: PMC10877862 DOI: 10.1186/s13063-024-07962-9] [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] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 02/01/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND Patients with cervical spondylosis myelopathy (CSM) may experience severe neurological dysfunction due to untimely spinal cord compression after surgery. These disorders may lead to sensory and motion disorders, causing considerable psychological distress. Recent studies found that virtual reality (VR) technology can be an effective tool for treating spinal cord injuries. Owing to this discovery, we developed an exploratory research project to investigate the impact of this intervention on the postoperative recovery of patients with CSM. METHODS The purpose of this randomized controlled trial was to evaluate the efficacy of combining VR technology with conventional rehabilitation strategies for the postoperative rehabilitation of patients with CSM. A total of 78 patients will be recruited and randomized to either the conventional rehabilitation group or the group subjected to VR technology combined with conventional rehabilitation strategies. The Japanese Orthopaedic Association (JOA) scale will be the main tool used, and secondary outcomes will be measured via the visual analogue scale (VAS), neck disability index (NDI), and functional MRI (fMRI). The data analysis will identify differences between the intervention and control groups as well as any relationship between the intragroup changes in the functional area of the brain and the subjective scale scores after the intervention. DISCUSSION The aim of this trial is to investigate the effect of VR training on the postoperative rehabilitation of patients with CSM after 12 intervention treatments. Positive and negative outcomes will help us better understand the effectiveness of the intervention and its neural impact. If effective, this study could provide new options for the postoperative rehabilitation of patients with CSM. TRIAL REGISTRATION Chinese Clinical Trial Registry (ChiCTR2300071544). Registered 17 May 2023, https://www.chictr.org.cn/ .
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Affiliation(s)
- Jiajun Wu
- Department of Spinal Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Zhongchuan Sun
- Department of Spinal Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Zhichao Ge
- Department of Spinal Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Dong Zhang
- Department of Spinal Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Jianghan Xu
- Department of Spinal Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Rilin Zhang
- Department of Spinal Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Xuecheng Liu
- Department of Spinal Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Qing Zhao
- Center of Rehabilitation Medicine, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China.
| | - Hao Sun
- Department of Spinal Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China.
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Holroyd KB, Berkowitz AL. Metabolic and Toxic Myelopathies. Continuum (Minneap Minn) 2024; 30:199-223. [PMID: 38330479 DOI: 10.1212/con.0000000000001376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
OBJECTIVE This article reviews the clinical presentation, diagnostic evaluation, and treatment of metabolic and toxic myelopathies resulting from nutritional deficiencies, environmental and dietary toxins, drugs of abuse, systemic medical illnesses, and oncologic treatments. LATEST DEVELOPMENTS Increased use of bariatric surgery for obesity has led to higher incidences of deficiencies in nutrients such as vitamin B12 and copper, which can cause subacute combined degeneration. Myelopathies secondary to dietary toxins including konzo and lathyrism are likely to become more prevalent in the setting of climate change leading to drought and flooding. Although modern advances in radiation therapy techniques have reduced the incidence of radiation myelopathy, patients with cancer are living longer due to improved treatments and may require reirradiation that can increase the risk of this condition. Immune checkpoint inhibitors are increasingly used for the treatment of cancer and are associated with a wide variety of immune-mediated neurologic syndromes including myelitis. ESSENTIAL POINTS Metabolic and toxic causes should be considered in the diagnosis of myelopathy in patients with particular clinical syndromes, risk factors, and neuroimaging findings. Some of these conditions may be reversible if identified and treated early, requiring careful history, examination, and laboratory and radiologic evaluation for prompt diagnosis.
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Park C, Shaffrey CI, Than KD, Michalopoulos GD, El Sammak S, Chan AK, Bisson EF, Sherrod BA, Asher AL, Coric D, Potts EA, Foley KT, Wang MY, Fu KM, Virk MS, Knightly JJ, Meyer S, Park P, Upadhyaya C, Shaffrey ME, Buchholz AL, Tumialán LM, Turner J, Agarwal N, Chou D, Chaudhry NS, Haid RW, Mummaneni PV, Bydon M, Gottfried ON. What factors influence surgical decision-making in anterior versus posterior surgery for cervical myelopathy? A QOD analysis. J Neurosurg Spine 2024; 40:206-215. [PMID: 37948703 DOI: 10.3171/2023.8.spine23194] [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] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 08/29/2023] [Indexed: 11/12/2023]
Abstract
OBJECTIVE The aim of this study was to explore the preoperative patient characteristics that affect surgical decision-making when selecting an anterior or posterior operative approach in patients diagnosed with cervical spondylotic myelopathy (CSM). METHODS This was a multi-institutional, retrospective study of the prospective Quality Outcomes Database (QOD) Cervical Spondylotic Myelopathy module. Patients aged 18 years or older diagnosed with primary CSM who underwent multilevel (≥ 2-level) elective surgery were included. Demographics and baseline clinical characteristics were collected. RESULTS Of the 841 patients with CSM in the database, 492 (58.5%) underwent multilevel anterior surgery and 349 (41.5%) underwent multilevel posterior surgery. Surgeons more often performed a posterior surgical approach in older patients (mean 64.8 ± 10.6 vs 58.5 ± 11.1 years, p < 0.001) and those with a higher American Society of Anesthesiologists class (class III or IV: 52.4% vs 46.3%, p = 0.003), a higher rate of motor deficit (67.0% vs 58.7%, p = 0.014), worse myelopathy (mean modified Japanese Orthopaedic Association score 11.4 ± 3.1 vs 12.4 ± 2.6, p < 0.001), and more levels treated (4.3 ± 1.3 vs 2.4 ± 0.6, p < 0.001). On the other hand, surgeons more frequently performed an anterior surgical approach when patients were employed (47.2% vs 23.2%, p < 0.001) and had intervertebral disc herniation as an underlying pathology (30.7% vs 9.2%, p < 0.001). CONCLUSIONS The selection of approach for patients with CSM depends on patient demographics and symptomology. Posterior surgery was performed in patients who were older and had worse systemic disease, increased myelopathy, and greater levels of stenosis. Anterior surgery was more often performed in patients who were employed and had intervertebral disc herniation.
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Affiliation(s)
- Christine Park
- 1Department of Neurosurgery, Duke University, Durham, North Carolina
| | | | - Khoi D Than
- 1Department of Neurosurgery, Duke University, Durham, North Carolina
| | | | - Sally El Sammak
- 2Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota
| | - Andrew K Chan
- 3Department of Neurological Surgery, Columbia University Vagelos College of Physicians and Surgeons, The Och Spine Hospital at NewYork-Presbyterian, New York, New York
| | - Erica F Bisson
- 4Department of Neurosurgery, University of Utah, Salt Lake City, Utah
| | - Brandon A Sherrod
- 4Department of Neurosurgery, University of Utah, Salt Lake City, Utah
| | - Anthony L Asher
- 5Neuroscience Institute, Carolinas Healthcare System and Carolina Neurosurgery & Spine Associates, Charlotte, North Carolina
| | - Domagoj Coric
- 5Neuroscience Institute, Carolinas Healthcare System and Carolina Neurosurgery & Spine Associates, Charlotte, North Carolina
| | - Eric A Potts
- 6Goodman Campbell Brain and Spine, Indianapolis, Indiana
| | - Kevin T Foley
- 7Department of Neurosurgery, University of Tennessee, Semmes Murphey Neurologic and Spine Institute, Memphis, Tennessee
| | - Michael Y Wang
- 8Department of Neurosurgery, University of Miami, Florida
| | - Kai-Ming Fu
- 9Department of Neurosurgery, Weill Cornell Medical Center, New York, New York
| | - Michael S Virk
- 9Department of Neurosurgery, Weill Cornell Medical Center, New York, New York
| | - John J Knightly
- 10Atlantic Neurosurgical Specialists, Morristown, New Jersey
| | - Scott Meyer
- 10Atlantic Neurosurgical Specialists, Morristown, New Jersey
| | - Paul Park
- 11Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan
| | - Cheerag Upadhyaya
- 12Marion Bloch Neuroscience Institute, Saint Luke's Health System, Kansas City, Missouri
| | - Mark E Shaffrey
- 13Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | - Avery L Buchholz
- 13Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | | | - Jay Turner
- 14Barrow Neurological Institute, Phoenix, Arizona
| | - Nitin Agarwal
- 15Department of Neurosurgery, Washington University in St. Louis, Missouri
| | - Dean Chou
- 3Department of Neurological Surgery, Columbia University Vagelos College of Physicians and Surgeons, The Och Spine Hospital at NewYork-Presbyterian, New York, New York
| | - Nauman S Chaudhry
- 1Department of Neurosurgery, Duke University, Durham, North Carolina
| | - Regis W Haid
- 16Atlanta Brain and Spine Care, Atlanta, Georgia; and
| | - Praveen V Mummaneni
- 17Department of Neurosurgery, University of California, San Francisco, California
| | - Mohamad Bydon
- 2Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota
| | - Oren N Gottfried
- 1Department of Neurosurgery, Duke University, Durham, North Carolina
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Zang F, Zhou H, Liang L, Wang J, Hu B, Chen H. Fever as a rare combined symptom of degenerative cervical myelopathy: a case report and literature review. Br J Neurosurg 2024; 38:84-87. [PMID: 33914669 DOI: 10.1080/02688697.2021.1914819] [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] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 04/06/2021] [Indexed: 10/21/2022]
Abstract
A 60-year-old male patient complained of weakness of both legs for one year, intermittent fever for two months, up to 38.0 °C. Physical examination showed bilateral hyperreflexia of knee tendon and positive Hoffman sign on the right side. MR imaging of the cervical spine showed central herniation of the cervical 5-7 disc and compression of the spinal cord. The WBC was normal, C-reactive protein was 24.42mg/l, ESR was 55mm/h, TB antibody, anti acid staining and T-SPOT were negative. Autoantibody was negative and thyroid function was normal. The JOA score was 9 points. During the operation, the herniated disc tissue was taken out for pathological examination and bacterial culture. The posterior longitudinal ligament was removed and no abscess was found. The symptom of asthenia in both legs was relieved and fever disappeared. No growth of aerobe, anaerobe or tubercle bacilli was found in the culture of resected tissue. One year after the operation, the fever did not recur, JOA score increased to 14 points, and MR imaging showed no protrusion in cervical spinal canal. In this case, the fever disappeared after the operation for cervical spondylosis, which may be a special manifestation of sympathetic nerve stimulation or autonomic dysfunction by chronic compression of spinal cord.
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Affiliation(s)
- Fazhi Zang
- Department of Spine surgery, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Hongyu Zhou
- Department of Spine surgery, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Lei Liang
- Department of Spine surgery, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Jianxi Wang
- Department of Spine surgery, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Bo Hu
- Department of Spine surgery, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Huajiang Chen
- Department of Spine surgery, Changzheng Hospital, Naval Medical University, Shanghai, China
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Brannigan JFM, Davies BM, Mowforth OD, Yurac R, Kumar V, Dejaegher J, Zamorano JJ, Murphy RKJ, Tripathi M, Anderson DB, Harrop J, Molliqaj G, Wynne-Jones G, Arbatin JJF, Kato S, Ito M, Wilson J, Romelean R, Dea N, Graves D, Tessitore E, Martin AR, Nouri A. Management of mild degenerative cervical myelopathy and asymptomatic spinal cord compression: an international survey. Spinal Cord 2024; 62:51-58. [PMID: 38129661 PMCID: PMC10853067 DOI: 10.1038/s41393-023-00945-8] [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] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 11/28/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023]
Abstract
STUDY DESIGN Cross-sectional survey. OBJECTIVE Currently there is limited evidence and guidance on the management of mild degenerative cervical myelopathy (DCM) and asymptomatic spinal cord compression (ASCC). Anecdotal evidence suggest variance in clinical practice. The objectives of this study were to assess current practice and to quantify the variability in clinical practice. METHODS Spinal surgeons and some additional health professionals completed a web-based survey distributed by email to members of AO Spine and the Cervical Spine Research Society (CSRS) North American Society. Questions captured experience with DCM, frequency of DCM patient encounters, and standard of practice in the assessment of DCM. Further questions assessed the definition and management of mild DCM, and the management of ASCC. RESULTS A total of 699 respondents, mostly surgeons, completed the survey. Every world region was represented in the responses. Half (50.1%, n = 359) had greater than 10 years of professional experience with DCM. For mild DCM, standardised follow-up for non-operative patients was reported by 488 respondents (69.5%). Follow-up included a heterogeneous mix of investigations, most often at 6-month intervals (32.9%, n = 158). There was some inconsistency regarding which clinical features would cause a surgeon to counsel a patient towards surgery. Practice for ASCC aligned closely with mild DCM. Finally, there were some contradictory definitions of mild DCM provided in the form of free text. CONCLUSIONS Professionals typically offer outpatient follow up for patients with mild DCM and/or asymptomatic ASCC. However, what this constitutes varies widely. Further research is needed to define best practice and support patient care.
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Affiliation(s)
- Jamie F M Brannigan
- Division of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
- School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Benjamin M Davies
- Division of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.
| | - Oliver D Mowforth
- Division of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
| | - Ratko Yurac
- Spine unit, Department of Orthopedic and Traumatology, Clínica Alemana, Santiago, Chile
- Department of Orthopedic and Traumatology, School of Medicine, University del Desarrollo, Santiago, Chile
| | - Vishal Kumar
- Department of Orthopaedics, PGIMER, Chandigarh, India
| | - Joost Dejaegher
- Department of Neurosurgery, University Hospitals Leuven, Leuven, KU Leuven, Belgium
| | - Juan J Zamorano
- Spine unit, Department of Orthopedic and Traumatology, Clínica Alemana, Santiago, Chile
| | - Rory K J Murphy
- Department of Neurosurgery, St. Joseph's Hospital and Medical Center, Barrow Neurological Institute, Phoenix, Arizona, USA
| | | | - David B Anderson
- Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - James Harrop
- Department of Neurological Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Granit Molliqaj
- Division of Neurosurgery, Geneva University Hospitals, Geneva, Switzerland
| | - Guy Wynne-Jones
- The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle, UK
| | | | - So Kato
- The University of Tokyo Hospital, Tokyo, Japan
| | - Manabu Ito
- Department of Orthopaedic Surgery, National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Jefferson Wilson
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Ronie Romelean
- Jayapalan Division of Neurosurgery, Department of Surgery, University Malaya Medical Centre, Petaling Jaya, Kuala Lumpur, Malaysia
| | - Nicolas Dea
- Combined Neurosurgical and Orthopedic Spine Program. Vancouver General Hospital, University of British Columbia, Vancouver, Canada
| | - Daniel Graves
- Department of Neurological Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Enrico Tessitore
- Division of Neurosurgery, Geneva University Hospitals, Geneva, Switzerland
| | | | - Aria Nouri
- Division of Neurosurgery, Geneva University Hospitals, Geneva, Switzerland
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Louie PK, Kumar R, Ruhoy S, Nemani VM. Gout-Induced Cervical Deformity and Progressive Myelopathy Mimicking Infection Requiring Cervical Reconstruction. World Neurosurg 2024; 182:112-115. [PMID: 38008164 DOI: 10.1016/j.wneu.2023.11.103] [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] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 11/28/2023]
Abstract
BACKGROUND This study describes a rare case where gout, a condition primarily associated with joint inflammation, initially manifested as a progressive cervical kyphotic deformity, mimicking infection and causing myelopathy. The patient, a previously healthy 56-year-old woman, presented with severe jaw pain and a temporomandibular joint abscess, alongside 2 months of worsening balance and arm/hand tingling. Extensive clinical and radiographic assessments revealed a severe cervical kyphotic deformity with bony erosion at multiple vertebral levels, raising suspicion of an infectious cause of compressive myelopathy. METHODS The patient underwent an urgent staged surgical intervention involving multilevel cervical decompression and fusion, coupled with cervical deformity correction. RESULTS Post surgery, she received antibiotics for 7 days, during which pathologic analysis unveiled collections of macrophages reacting to urate crystal deposition in a pattern consistent with gouty tophus. This unexpected diagnosis marked a novel case of undiagnosed gout-induced severe cervical deformity presenting with myelopathic symptoms and successfully managed through cervical spine deformity correction. CONCLUSIONS This report underscores the significance of considering gout as a potential cause when encountering unusual spinal pathologies, especially in cases where gout-related symptoms are atypical. The presented 540-degree surgical approach effectively addressed both the cervical deformity and gout-induced myelopathic symptoms. To the best of our knowledge, this study represents the first documented instance of a patient with undiagnosed gout-induced severe cervical deformity successfully treated through cervical spine deformity correction, emphasizing the importance of vigilance and innovative management approaches in such rare clinical scenarios. As of the 2-year follow-up, the patient exhibited significant symptom improvement and overall well-being.
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Affiliation(s)
- Philip K Louie
- Department of Neurosurgery, Center for Neurosciences and Spine, Virginia Mason Franciscan Health, Seattle, Washington, USA.
| | - Rakesh Kumar
- Department of Neurosurgery, Center for Neurosciences and Spine, Virginia Mason Franciscan Health, Seattle, Washington, USA
| | - Steven Ruhoy
- Department of Pathology, Virginia Mason Franciscan Health, Seattle, Washington, USA
| | - Venu M Nemani
- Department of Neurosurgery, Center for Neurosciences and Spine, Virginia Mason Franciscan Health, Seattle, Washington, USA
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12
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Xu D, Zhou C, Tao H, Zhu K, Wang C, Peng C, Zhang H, Song M, Ma X. Relationship between hinge fracture and postoperative axial symptoms after cervical laminoplasty. Br J Neurosurg 2024; 38:88-93. [PMID: 35109723 DOI: 10.1080/02688697.2021.1923647] [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] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 04/26/2021] [Indexed: 11/02/2022]
Abstract
OBJECTIVE To identify the clinical characteristics of fractured hinges after open-door cervical laminoplasty for cervical canal stenosis and explore the relationship between hinge fractures and axial symptoms. METHODS This was a retrospective study of patients with cervical myelopathy who underwent open-door laminoplasty between November 2014 and November 2016 at the Affiliated Hospital of Qingdao University. Cervical CT scans were performed after surgery and the Takeuchi criteria were applied to evaluate the postoperative axial symptoms. RESULTS Of 223 opened laminae in 67 patients, 67 laminae (30.0%) in 30 patients (44.8%) showed fracture. The frequency of hinge fractures was higher at C6 (53.7%). Forty-nine fractured laminae (73.13%) were non-displaced and 18 were displaced. At 3 months, 33 fractured laminae (49.3%) showed bony union on CT, and union rates were 86.6% and 91.0% at 6 and 12 months, respectively, indicating that the union rate was lower for displaced fractures than for non-displaced fractures. Among the 67 patients, 14 had axial symptoms: three of 37 (8.1%) patients without hinge fractures and 11 of 30 (36.7%) patients with hinge fractures. One year later, the hinge fractures were healed in 24/30 patients. Among the six unhealed patients, five still suffered from axial symptoms. The frequency of axial symptoms was higher in the patients with three or more hinge fractures (66.7%) than in the patients with only one (16.7%) or two (46.7%) hinge fractures. CONCLUSIONS Patients with hinge fractures may have an increased risk for axial symptoms after open-door cervical laminoplasty. The frequency of axial symptoms decreases with fracture healing.
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Affiliation(s)
- Derong Xu
- Department of Spine Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Chuanli Zhou
- Department of Spine Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Hao Tao
- Department of Spine Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Kai Zhu
- Department of Spine Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Chao Wang
- Department of Spine Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Chen Peng
- Department of Spine Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Hao Zhang
- Department of Spine Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Mengxiong Song
- Department of Spine Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Xuexiao Ma
- Department of Spine Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, China
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13
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Mohammadi E, Khan AF, Villeneuve LM, Hameed S, Haynes G, Muhammad F, Smith ZA. Systematic review protocol for complications following surgical decompression of degenerative cervical myelopathy. PLoS One 2024; 19:e0296809. [PMID: 38285684 PMCID: PMC10824432 DOI: 10.1371/journal.pone.0296809] [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] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 12/19/2023] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Degenerative Cervical Myelopathy (DCM) is one of the most common degenerative disorders of cervical spine and sources of cord dysfunction in adults. It usually manifests with neurologic presentations such as loss of dexterity and gait issues. Treatment for moderate and severe cases of DCM is surgical decompression of the region. There are many approaches available for surgical intervention which could be categorized into anterior and posterior based on the side of neck where operation takes place. Additionally, for certain cases the hybridized anterior-posterior combined surgery is indicated. While there are many technical differences between these approaches with each having its own advantages, the complications and safety profiles of them are not fully disclosed. This protocol aims to systematically search for current reports on complications of surgical decompression methods of DCM and pool them for robust evidence generation. METHOD Search will be carried out in PubMed, Scopus, and Cochrane databases for retrospective and prospective surgical series, cohorts, or trials being performed for DCM with at least a sample size of 20 patients. Query strings will be designed to capture reports with details of complications with no year limit. Studies not being original (e.g., review articles, case reports, etc.), not in English, having patients younger than 18-years-old, and not reporting at least one complication will be excluded. Two independent reviewers will review the titles and abstracts for first round of screening. Full text of retrieved studies from previous round will be screened again by the same reviewers. In case of discrepancy, the third senior reviewer will be consulted. Eligible studies will then be examined for data extraction where data will be recorded into standardized form. Cumulative incidence and 95% confidence intervals of complication will be then pooled based on generalized linear mixed models with consideration of approach of surgery as subgroups. Heterogeneity tests will be performed for assessment of risk of bias. DISCUSSION This systematic review is aimed at providing practical information for spine surgeons on the rates of complications of different surgical approaches of DCM decompression. Proper decision-making regarding the surgical approach in addition to informing patients could be facilitated through results of this investigation.
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Affiliation(s)
- Esmaeil Mohammadi
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
- Neuroscience Program, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Ali Fahim Khan
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Lance M. Villeneuve
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Sanaa Hameed
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Grace Haynes
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, United States of America
| | - Fauziyya Muhammad
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
- Neuroscience Program, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Zachary A. Smith
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
- Neuroscience Program, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
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14
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Guilan MB, Alimohammadi E. Letter to the editor regarding: risk factors for axial symptoms following laminoplasty for cervical spondylotic myelopathy. J Orthop Surg Res 2024; 19:18. [PMID: 38167447 PMCID: PMC10762988 DOI: 10.1186/s13018-023-04508-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 12/22/2023] [Indexed: 01/05/2024] Open
Affiliation(s)
- Milad Babaei Guilan
- Department of Neurosurgery, Kermanshah University of Medical Sciences, Imam Reza Hospital, Kermanshah, Iran
| | - Ehsan Alimohammadi
- Department of Neurosurgery, Kermanshah University of Medical Sciences, Imam Reza Hospital, Kermanshah, Iran.
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15
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Takahashi K, Ogawa S, Isefuku S, Hashimoto K, Aizawa T. Post-laminectomy cervical flexion myelopathy and its possible pathomechanism: A case report. J Orthop Sci 2024; 29:394-398. [PMID: 35623992 DOI: 10.1016/j.jos.2022.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/07/2022] [Accepted: 05/01/2022] [Indexed: 11/19/2022]
Affiliation(s)
- Kohei Takahashi
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Shinji Ogawa
- Department of Orthopaedics Surgery, Sendai Medical Center, 2-11-12 Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan
| | - Shuji Isefuku
- Department of Orthopaedics Surgery, Sendai Medical Center, 2-11-12 Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan
| | - Ko Hashimoto
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Toshimi Aizawa
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
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16
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Lin BH, Zhong GQ, Meng XH, Han HE, Hu XQ, Lin JJ, Zhong SC, Lin YJ. Application effect of diversified health-promoting models on rehabilitation exercises for cervical spondylotic myelopathy. Technol Health Care 2024; 32:705-718. [PMID: 37483032 DOI: 10.3233/thc-230056] [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] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
BACKGROUND With improving living standards, the incidence of cervical spondylotic myelopathy (CSM) has become increasingly high. OBJECTIVE The study aims to explore the effect of diversified health-promoting models on rehabilitation exercises in patients with CSM after an operation. METHOD This was a randomized controlled trial, wherein 107 patients with CSM treated by neurosurgery were selected as the subjects. Of those, 52 patients in the control group adopted the conventional health-promoting model, while the remaining 55 patients in the intervention group adopted diversified health-promoting models. The effect of rehabilitation exercises in the two groups was evaluated according to the self-efficacy rehabilitation outcome scale, grip strength measurement of the affected limb, and Barthel index. RESULTS At Day 3 post-operation and before discharge, the self-efficacy management of rehabilitation exercises in the intervention group was better than that of the control group (P< 0.05). The grip strength measurement of the affected limb, Japanese Orthopedic Association score of the cervical vertebra, and Barthel index of the two groups at Day 3 post-operation were lower than before the intervention and were not statistically significant (P> 0.05). However, these three items before discharge were improved when compared with those of before intervention and were statistically significant (P< 0.05). CONCLUSION Postoperative rehabilitation exercises guided by the diversified health-promoting models for patients with CSM can improve the patients' self-efficacy management ability in rehabilitation exercises, help improve grip strength, and promote the recovery of cervical vertebra function, thereby improving the patients' quality of life.
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Affiliation(s)
- Bi-Hua Lin
- Department of Neurosurger Nursing, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Department of Neurosurger Nursing, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Gui-Qin Zhong
- Department of Neurosurger Nursing, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Department of Neurosurger Nursing, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Xiao-Hong Meng
- Department of Neurosurger Nursing, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- Department of Neurosurger Nursing, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Hai-E Han
- Department of Neurosurger Nursing, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Department of Neurosurger Nursing, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Xue-Qin Hu
- Department of Neurosurger Nursing, The First People's Hospital of Changde City, Changde, Hunan, China
- Department of Neurosurger Nursing, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Jing-Jing Lin
- Department of Neurosurger Nursing, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Shi-Chai Zhong
- Department of Neurosurger Nursing, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Yan-Juan Lin
- Department of Neurosurger Nursing, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
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17
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Song J, Li J, Zhao R, Chu X. Developing predictive models for surgical outcomes in patients with degenerative cervical myelopathy: a comparison of statistical and machine learning approaches. Spine J 2024; 24:57-67. [PMID: 37531977 DOI: 10.1016/j.spinee.2023.07.021] [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: 05/15/2023] [Revised: 07/16/2023] [Accepted: 07/26/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND CONTEXT Machine learning (ML) is widely used to predict the prognosis of numerous diseases. PURPOSE This retrospective analysis aimed to develop a prognostic prediction model using ML algorithms and identify predictors associated with poor surgical outcomes in patients with degenerative cervical myelopathy (DCM). STUDY DESIGN A retrospective study. PATIENT SAMPLE A total of 406 symptomatic DCM patients who underwent surgical decompression were enrolled and analyzed from three independent medical centers. OUTCOME MEASURES We calculated the area under the curve (AUC), classification accuracy, sensitivity, and specificity of each model. METHODS The Japanese Orthopedic Association (JOA) score was obtained before and 1 year following decompression surgery, and patients were grouped into good and poor outcome groups based on a cut-off value of 60% based on a previous study. Two datasets were fused for training, 1 dataset was held out as an external validation set. Optimal feature-subset and hyperparameters for each model were adjusted based on a 2,000-resample bootstrap-based internal validation via exhaustive search and grid search. The performance of each model was then tested on the external validation set. RESULTS The Support Vector Machine (SVM) model showed the highest predictive accuracy compared to other methods, with an AUC of 0.82 and an accuracy of 75.7%. Age, sex, disease duration, and preoperative JOA score were identified as the most commonly selected features by both the ML and statistical models. Grid search optimization for hyperparameters successfully enhanced the predictive performance of each ML model, and the SVM model still had the best performance with an AUC of 0.93 and an accuracy of 86.4%. CONCLUSIONS Overall, the study demonstrated that ML classifiers such as SVM can effectively predict surgical outcomes for patients with DCM while identifying associated predictors in a multivariate manner.
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Affiliation(s)
- Jiajun Song
- Department of Orthopedic Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Jie Li
- Department of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin 300211, China
| | - Rui Zhao
- Department of Orthopedic Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Xu Chu
- Department of Orthopedic Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, China.
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18
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Tu TH, Huang HY, Kuo YH, Chang CC, Wu CL, Chang HK, Fay LY, Yeh MY, Ko CC, Huang WC, Kuo CH, Wu JC. Assessing Range of Motion Gap in Circumferential Surgery for Cervical Myelopathy due to Ossification of the Posterior Longitudinal Ligament. World Neurosurg 2024; 181:e468-e474. [PMID: 37866780 DOI: 10.1016/j.wneu.2023.10.083] [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] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 10/16/2023] [Indexed: 10/24/2023]
Abstract
OBJECTIVE Only a few studies have investigated the gap range of motion (gROM) in cervical myelopathy or deformity caused by ossification of the posterior longitudinal ligament (OPLL). The aim of this study is to investigate the correlation between the individual gROM and the postoperative clinical outcomes of patients with OPLL. METHODS Consecutive patients of cervical myelopathy caused by OPLL were analyzed retrospectively. The clinical outcomes were evaluated using Visual Analogue Scale scores of the neck and arm pain and the Japanese Orthopaedic Association scores. Radiologic measurements included flexion ROM (fROM), which was defined as the difference of cervical lordosis in flexion and neutral positions, extension ROM (eROM), defined as the difference between neutral and extension positions, and gROM, defined as the difference between fROM and eROM. Patients were grouped by the values of gROM, and comparisons of all outcomes were made between the groups. RESULTS A total of 42 patients underwent surgery. The patients with greater gROM did not differ from those with smaller gROM by demographic characteristics. During follow-up (mean 45.8 months), both groups had similar improvements, but the C5 palsy rates were higher in the greater gROM group than in the smaller gROM group (71% and 22%, P < 0.05). CONCLUSIONS Simultaneous circumferential decompression and fixation is an effective surgical option for patients with cervical myelopathy caused by OPLL. A higher rate of postoperative C5 palsy was observed in the patients with greater gROMs after surgery, although all patients presented with similar clinical improvements.
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Affiliation(s)
- Tsung-Hsi Tu
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hui-Yu Huang
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Hsuan Kuo
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chih-Chang Chang
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Biomedical Engineering, School of Biomedical Science and Engineering, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ching-Lan Wu
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hsuan-Kan Chang
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Li-Yu Fay
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Mei-Yin Yeh
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Institute of Pharmacology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chin-Chu Ko
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Wen-Cheng Huang
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chao-Hung Kuo
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Biomedical Engineering, School of Biomedical Science and Engineering, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Jau-Ching Wu
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
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Khan AF, Mohammadi E, Haynes G, Hameed S, Rohan M, Anderson DB, Weber KA, Muhammad F, Smith ZA. Evaluating tissue injury in cervical spondylotic myelopathy with spinal cord MRI: a systematic review. Eur Spine J 2024; 33:133-154. [PMID: 37926719 DOI: 10.1007/s00586-023-07990-0] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/02/2023] [Accepted: 10/03/2023] [Indexed: 11/07/2023]
Abstract
PURPOSE Cervical Spondylotic Myelopathy (CSM) is a degenerative condition that leads to loss of cervical spinal cord (CSC) integrity. Various spinal cord Magnetic Resonance Imaging (MRI) methods can identify and characterize the extent of this damage. This systematic review aimed to evaluate the diagnostic, biomarker, and predictive utilities of different spinal cord MRI methods in clinical research studies of CSM. The aim was to provide a comprehensive understanding of the progress in this direction for future studies and effective diagnosis and management of CSM. METHODS A comprehensive literature search was conducted on PubMed and EMBASE from 2010 to 2022 according to PRISMA guidelines. Studies with non-human subjects, less than 3T magnetic field strength, non-clinical design, or not quantitatively focusing on the structural integrity of CSC were excluded. The extracted data from each study included demographics, disease severity, MRI machine characteristics, quantitative metrics, and key findings in terms of diagnostic, biomarker, and predictive utilities of each MRI method. The risk of bias was performed using the guide from AHRQ. The quality of evidence was assessed separately for each type of utility for different MRI methods using GRADE. RESULTS Forty-seven studies met the inclusion criteria, utilizing diffusion-weighted imaging (DTI) (n = 39), magnetization transfer (MT) (n = 6), MR spectroscopy (n = 3), and myelin water imaging (n = 1), as well as a combination of MRI methods (n = 12). The metric fractional anisotropy (FA) showed the highest potential in all facets of utilities, followed by mean diffusivity. Other promising metrics included MT ratio and intracellular volume fraction, especially in multimodal studies. However, the level of evidence for these promising metrics was low due to a small number of studies. Some studies, mainly DTI, also reported the usefulness of spinal cord MRI in mild CSM. CONCLUSIONS Spinal cord MRI methods can potentially facilitate the diagnosis and management of CSM by quantitatively interrogating the structural integrity of CSC. DTI is the most promising MRI method, and other techniques have also shown promise, especially in multimodal configurations. However, this field is in its early stages, and more studies are needed to establish the usefulness of spinal cord MRI in CSM.
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Affiliation(s)
- Ali Fahim Khan
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, 1000 N Lincoln Blvd, Suite 4000, Oklahoma City, OK, 73104, USA
| | - Esmaeil Mohammadi
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, 1000 N Lincoln Blvd, Suite 4000, Oklahoma City, OK, 73104, USA
| | - Grace Haynes
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, USA
| | - Sanaa Hameed
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, 1000 N Lincoln Blvd, Suite 4000, Oklahoma City, OK, 73104, USA
| | - Michael Rohan
- Laureate Institute for Brain Research, Tulsa, OK, USA
| | - David B Anderson
- School of Health Sciences, The University of Sydney, Sydney, Australia
| | - Kenneth A Weber
- Systems Neuroscience and Pain Laboratory, Division of Pain Medicine, Stanford University School of Medicine, Stanford University, Palo Alto, CA, USA
| | - Fauziyya Muhammad
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, 1000 N Lincoln Blvd, Suite 4000, Oklahoma City, OK, 73104, USA
| | - Zachary A Smith
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, 1000 N Lincoln Blvd, Suite 4000, Oklahoma City, OK, 73104, USA.
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20
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Nakao Y, Sakuraba K, Harimaya K, Terada K, Kobara N, Kawaguchi KI, Hayashida M, Iida K, Nakashima Y, Fukushi JI. Clinical features and outcomes of spine surgery in patients with ankylosing spondylitis. Mod Rheumatol 2023; 34:208-213. [PMID: 36469006 DOI: 10.1093/mr/roac142] [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] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/10/2022] [Accepted: 12/01/2022] [Indexed: 12/24/2023]
Abstract
OBJECTIVES The study aimed to comprehend the clinical features and outcomes of surgical treatments for spinal disorders in patients with ankylosing spondylitis (AS). METHODS This retrospective study enrolled patients with AS who underwent spine surgery between 2000 and 2019 in our facility. RESULTS Thirteen patients with AS underwent spine surgeries. The mean age was 56.2 years, and the mean disease duration was 25.1 years at the time of surgery. Nine patients had vertebral fracture, two had kyphotic deformity, and two had myelopathy due to the spinal ligament ossification. Fracture cases included five patients with secondary pseudarthrosis/delayed palsy due to conservative treatment failure. Spinal fixation was performed in all patients. Pedicle subtraction osteotomy for kyphosis and laminectomy for myelopathy were also conducted. All patients improved after surgeries. One patient with kyphotic deformity underwent additional surgery of bilateral hip prosthesis, which resulted in better spine alignment. Four cases of perioperative complications were observed. CONCLUSION Myelopathy was newly found as the aetiology requiring surgery in patients with AS. This summarized case series could help physicians to identify patients with surgically treatable spinal disorders among patients with AS.
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Affiliation(s)
- Yuki Nakao
- Department of Orthopaedic Surgery, Clinical Research Center, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Koji Sakuraba
- Department of Orthopaedic Surgery, Clinical Research Center, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Katsumi Harimaya
- Department of Orthopaedic Surgery, Kyushu University Beppu Hospital, Oita, Japan
| | - Kazuo Terada
- Department of Orthopaedic Surgery, Clinical Research Center, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Nobuo Kobara
- Department of Orthopaedic Surgery, Clinical Research Center, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Ken-Ichi Kawaguchi
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Mitsumasa Hayashida
- Department of Orthopaedic Surgery, Saga-ken Medical Centre Koseikan, Saga, Japan
| | - Keiichiro Iida
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Jun-Ichi Fukushi
- Department of Orthopaedic Surgery, Clinical Research Center, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
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21
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Ueno T, Murakami K, Arai A, Tomiyama M. Treatable Spastic Tetraparesis Caused by Overshunting-associated Myelopathy. Intern Med 2023; 62:3717-3718. [PMID: 37164670 PMCID: PMC10781540 DOI: 10.2169/internalmedicine.1655-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/29/2023] [Indexed: 05/12/2023] Open
Affiliation(s)
- Tatsuya Ueno
- Department of Neurology, Aomori Prefectural Central Hospital, Japan
| | - Kensuke Murakami
- Department of Neurosurgery, Aomori Prefectural Central Hospital, Japan
| | - Akira Arai
- Department of Neurology, Aomori Prefectural Central Hospital, Japan
| | - Masahiko Tomiyama
- Department of Neurology, Hirosaki University Graduate School of Medicine, Japan
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22
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Ruan C, Jiang W, Lu W, Wang Y, Hu X, Ma W. Analysis of risk factors for axial symptoms after posterior cervical open-door laminoplasty. J Orthop Surg Res 2023; 18:954. [PMID: 38082364 PMCID: PMC10714461 DOI: 10.1186/s13018-023-04426-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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] [Received: 07/27/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Laminoplasty (LP), a procedure commonly used to treat cervical spondylotic myelopathy (CSM), often results in the development of axial symptoms (AS) postoperatively. This study aims to analyze the risk factors associated with the occurrence of AS after LP. METHODS We collected and evaluated clinical data from 264 patients with CSM who underwent LP treatment at our institution from January 2018 to January 2022 through a single-center retrospective study. Of the patients, 153 were male and 111 were female, with an average age of 58.1 ± 6.7 years. All patients underwent C3-7 posterior laminoplasty. Based on the occurrence of postoperative axial symptoms, the patients were divided into an AS group and a non-AS group. General information, including age, gender, disease duration, Japanese Orthopaedic Association (JOA) score, postoperation early function training, and collar-wearing time, was recorded and compared between the two groups. Surgical-related data, such as operative segments, surgical time, intraoperative blood loss, intraoperative facet joint destruction, and destruction of the C7 spinous process muscle insertion, were also compared. Imaging data, including preoperative cervical curvature, cervical range of motion, preoperative encroachment rate of the anterior spinal canal, and angle of laminar opening, were collected. Univariate and multivariate logistic regression analyses were used to identify risk factors for the development of AS after LP, and receiver operator characteristic (ROC) curves were utilized to explore the optimal preoperative parameters. RESULTS All 264 patients successfully underwent surgery and were followed up for an average of 19.5 ± 6.8 months. At the 6-month follow-up, 117 patients were diagnosed with AS, resulting in an incidence rate of 40.2%. The multivariate logistic regression analysis identified that preoperative encroachment rate of anterior spinal canal (Pre-op ERASC), intraoperative facet joints destruction (Intra-op FJD), intraoperative open-door angle (Intra-op OA), destroy the C7 spinous process muscle insertion (Destroy C7 SPMI), postoperative loss of cervical curvature (Post-op LCC), and postoperative loss of cervical range of motion (Post-op LCROM) were independent risk factors for AS. Conversely, preoperative cervical curvature (Pre-op CC) and postoperation early function training (Post-op EFT) were protective factors against AS. According to the ROC curve, the cutoff values for preoperative anterior spinal canal occupation rate and preoperative cervical curvature were 28.5% and 16.5°, respectively. When the preoperative anterior spinal canal occupation rate was greater than 28.5% or the preoperative cervical curvature was less than 16.5°, AS was more likely to occur after surgery. CONCLUSION High preoperative anterior spinal canal occupation rate, facet joint damage during surgery, C7 spinous process muscle stop point damage, larger angle of laminar opening, and greater postoperative cervical curvature loss and cervical range of motion loss are associated with an increased risk of developing AS after cervical laminoplasty. Conversely, a larger preoperative cervical curvature and early postoperative functional exercises can help reduce the occurrence of AS.
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Affiliation(s)
- Chaoyue Ruan
- Department of Spinal Surgery, Ningbo Sixth Hospital, Ningbo, 315040, Zhejiang, China
| | - Weiyu Jiang
- Department of Spinal Surgery, Ningbo Sixth Hospital, Ningbo, 315040, Zhejiang, China
| | - Wenjie Lu
- Department of Spinal Surgery, Ningbo Sixth Hospital, Ningbo, 315040, Zhejiang, China
| | - Yang Wang
- Department of Spinal Surgery, Ningbo Sixth Hospital, Ningbo, 315040, Zhejiang, China
| | - Xudong Hu
- Department of Spinal Surgery, Ningbo Sixth Hospital, Ningbo, 315040, Zhejiang, China
| | - Weihu Ma
- Department of Spinal Surgery, Ningbo Sixth Hospital, Ningbo, 315040, Zhejiang, China.
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23
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Xu T, Chen J, Xuan T, Cheng J, Li H. Autoimmune glial fibrillary acidic protein astrocytopathy complicated with low flow perimedullary arteriovenous fistula: a case report. Front Immunol 2023; 14:1293425. [PMID: 38111582 PMCID: PMC10726202 DOI: 10.3389/fimmu.2023.1293425] [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] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/20/2023] [Indexed: 12/20/2023] Open
Abstract
Autoimmune glial fibrillary acidic protein (GFAP) astrocytopathy and low-flow perimedullary arteriovenous fistulas (PMAVFs) may cause longitudinal widespread myelopathy. We report a middle-aged male patient with autoimmune GFAP astrocytopathy complicated with low flow PMAVFs disease, presenting with lower extremity weakness and dysuria. Magnetic resonance imaging (MRI) of the spinal cord revealed a significant longitudinal extent of T2 high signal from T11 to L1, with the lesion located proximal to the vascular territory supplied by the anterior spinal artery. Multiple patchy abnormal signals were seen adjacent to the anterior and posterior horns of the lateral ventricles bilaterally and at the centers of the semi-ovals on MRI of the cranial brain, with iso signal in T1Flair, the high signal in T2WI, and no high signal seen in Diffusion Weighted Imaging (DWI). Subsequently, the presence of anti-GFAP antibodies was detected in the cerebrospinal fluid (CSF), and the diagnosis of autoimmune GFAP astrocytopathy in conjunction with low-flow PMAVFs was confirmed through spinal digital subtraction angiography (DSA). This case report aims to increase neurologists' awareness of this disease and avoid missed or misdiagnosed cases that may lead to delayed treatment.
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Affiliation(s)
- Ting Xu
- Department of Neuroelectrophysiology, Cardiovascular and Cerebrovascular Disease Hospital Branch, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Jingyun Chen
- Department of Neuroelectrophysiology, Cardiovascular and Cerebrovascular Disease Hospital Branch, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Tingting Xuan
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
| | - Jiang Cheng
- Diagnosis and Treatment Engineering Technology Research Center of Nevous System Disease of Ningxia Hui Autonomous Region, Yinchuan, China
- Department of Neurology, Cardiovascular and Cerebrovascular Disease Hospital Branch, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Haining Li
- Diagnosis and Treatment Engineering Technology Research Center of Nevous System Disease of Ningxia Hui Autonomous Region, Yinchuan, China
- Department of Neurology, General Hospital of Ningxia Medical University, Yinchuan, China
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24
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Liu SEB, Paul D, Phan A, Shah S, Silberstein H, Puvanesarajah V, Rubery P, Mesfin A. Perioperative Complications and Radiographic Outcomes Following Cervical Laminoplasty: A Review of 105 Cases from a Single Academic Center. World Neurosurg 2023; 180:e258-e265. [PMID: 37739170 DOI: 10.1016/j.wneu.2023.09.049] [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] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 09/24/2023]
Abstract
OBJECTIVE To assess complications and to compare preoperative and postoperative radiographic measures in patients who underwent cervical laminoplasty. METHODS We evaluated patients undergoing cervical laminoplasty between 2011 and 2022 at an academic medical center. Patient demographics, intraoperative and postoperative complications, and preoperative and postoperative radiographic parameters were recorded. RESULTS Of 150 patients undergoing cervical laminoplasty during 2011-2022, 105 met the inclusion criteria. We identified 22 (21.0%) adverse events in 20 patients: 4 intraoperative (3.8%), 10 perioperative (9.5%), and 8 delayed postoperative (7.6%). Among adverse events, 13 (12.4%) were judged to be minor and 9 (8.6%) were judged to be major complications. Revision surgery was required in 6 (5.7%) patients. Both preoperative and postoperative cervical spine radiographic imaging was available in 47 (44.8%) of the 105 patients. Mean preoperative and postoperative C2-7 Cobb angles were 14.7° and 12.3°, respectively (P = 0.04). Mean preoperative and postoperative sagittal vertical axis measurements were 29.2 mm and 33.3 mm, respectively (P = 0.07). Mean preoperative and postoperative T1 slopes were 32.3° and 30.2°, respectively (P = 0.07). CONCLUSIONS Cervical laminoplasty carries a significant risk of adverse events, the majority of which are minor, and has a low rate of reoperation (5.7%). The procedure does not result in significant changes in sagittal vertical axis or T1 slope. Cervical laminoplasty remains a valuable surgical option for selected patients with cervical myelopathy.
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Affiliation(s)
- Serena E B Liu
- Department of Orthopaedics and Rehabilitation, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - David Paul
- Department of Neurosurgery, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Amy Phan
- Department of Orthopaedics and Rehabilitation, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Shalin Shah
- Department of Orthopaedic Surgery, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Howard Silberstein
- Department of Neurosurgery, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Varun Puvanesarajah
- Department of Orthopaedics and Rehabilitation, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Paul Rubery
- Department of Orthopaedics and Rehabilitation, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Addisu Mesfin
- Medstar Orthopaedic Institute/Georgetown University School of Medicine, Washington, DC, USA.
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25
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Zheng LD, Cao YT, Yang YT, Xu ML, Zeng HZ, Zhu SJ, Jin C, Yuan Q, Zhu R. Effect of Different Types of Ossification of the Posterior Longitudinal Ligament on the Dynamic Biomechanical Response of the Spinal Cord: A Finite Element Analysis. J Biomech Eng 2023; 145:121002. [PMID: 37578172 DOI: 10.1115/1.4063194] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 08/09/2023] [Indexed: 08/15/2023]
Abstract
Ossification of the posterior longitudinal ligament (OPLL) has been identified as an important cause of cervical myelopathy. However, the biomechanical mechanism between the OPLL type and the clinical characteristics of myelopathy remains unclear. The aim of this study was to evaluate the effect of different types of OPLL on the dynamic biomechanical response of the spinal cord. A three-dimensional finite element model of the fluid-structure interaction of the cervical spine with spinal cord was established and validated. The spinal cord stress and strain, cervical range of motion (ROM) in different types of OPLL models were predicted during dynamic flexion and extension activity. Different types of OPLL models showed varying degrees of increase in stress and strain under the process of flexion and extension, and there was a surge toward the end of extension. Larger spinal cord stress was observed in segmental OPLL. For continuous and mixed types of OPLL, the adjacent segments of OPLL showed a dramatic increase in ROM, while the ROM of affected segments was limited. As a dynamic factor, flexion and extension of the cervical spine play an amplifying role in OPLL-related myelopathy, while appropriate spine motion is safe and permitted. Segmental OPLL patients are more concerned about the spinal cord injury induced by large stress, and patients with continuous OPLL should be noted to progressive injuries of adjacent level.
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Affiliation(s)
- Liang-Dong Zheng
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai 200092, China;Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of the Ministry of Education, Tongji Hospital, School of Medicine, Tongji University, 389 Xincun Road, Shanghai 200065, China
| | - Yu-Ting Cao
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai 200092, China;Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of the Ministry of Education, Tongji Hospital, School of Medicine, Tongji University, 389 Xincun Road, Shanghai 200065, China
| | - Yi-Ting Yang
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai 200092, China;Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of the Ministry of Education, Tongji Hospital, School of Medicine, Tongji University, 389 Xincun Road, Shanghai 200065, China
| | - Meng-Lei Xu
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai 200092, China;Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of the Ministry of Education, Tongji Hospital, School of Medicine, Tongji University, 389 Xincun Road, Shanghai 200065, China
| | - Hui-Zi Zeng
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai 200092, China;Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of the Ministry of Education, Tongji Hospital, School of Medicine, Tongji University, 389 Xincun Road, Shanghai 200065, China
| | - Shi-Jie Zhu
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai 200092, China;Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of the Ministry of Education, Tongji Hospital, School of Medicine, Tongji University, 389 Xincun Road, Shanghai 200065, China
| | - Chen Jin
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai 200092, China;Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of the Ministry of Education, Tongji Hospital, School of Medicine, Tongji University, 389 Xincun Road, Shanghai 200065, China
| | - Qing Yuan
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai 200092, China;Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of the Ministry of Education, Tongji Hospital, School of Medicine, Tongji University, 389 Xincun Road, Shanghai 200065, China
| | - Rui Zhu
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai 200092, China;Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of the Ministry of Education, Tongji Hospital, School of Medicine, Tongji University, 389 Xincun Road, Shanghai 200065, China
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26
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Hashikata H, Goto M, Maki Y, Nishida N, Ando M, Ishibashi R, Toda H, Iwasaki K. Intramedullary feeder aneurysm of a cervical epidural arteriovenous fistula causing myelopathy: a case report and literature review. Acta Neurochir (Wien) 2023; 165:3985-3990. [PMID: 37059919 DOI: 10.1007/s00701-023-05578-7] [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] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 03/31/2023] [Indexed: 04/16/2023]
Abstract
While a craniocervical junction (CCJ) epidural arteriovenous fistula (EDAVF) may present with hemorrhagic myelopathy from an associated feeder aneurysm on rare occasions, non-hemorrhagic myelopathy from such an aneurysm remains unreported. A woman in her late sixties presented with cervical myelopathy due to a non-hemorrhagic intramedullary aneurysm associated with CCJ-EDAVF. The intramedullary aneurysm originated from the spinal pial artery supplied by the anterior spinal artery. Direct surgical fistula coagulation and feeder obliteration resulted in the disappearance of the aneurysm and myelopathy improvement. This report illustrates the first case of a non-hemorrhagic intramedullary aneurysm associated with CCJ-EDAVF successfully treated with direct surgery.
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Affiliation(s)
- Hirokuni Hashikata
- Department of Neurosurgery, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-kofukai, 2-4-20 Ogimachi Kita, Osaka, 530-8480, Japan.
| | - Masanori Goto
- Department of Neurosurgery, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-kofukai, 2-4-20 Ogimachi Kita, Osaka, 530-8480, Japan
- Department of Neurosurgery, Kobe City Medical Center General Hospital, 2-1-1 Minatojima Minami, Chuo, Kobe, Hyogo, 650-0047, Japan
| | - Yoshinori Maki
- Department of Neurosurgery, Hikone Chuo Hospital, 421 Nishiima, Hikone, Shiga, 522-0054, Japan
- Department of Rehabilitation, Hikari Hospital, 3-35-1 Saikawa, Otsu, Shiga, 520-0002, Japan
| | - Namiko Nishida
- Department of Neurosurgery, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-kofukai, 2-4-20 Ogimachi Kita, Osaka, 530-8480, Japan
| | - Mitsushige Ando
- Department of Neurosurgery, Shiga General Hospital, 5-4-30 Moriyama, Shiga, 524-8524, Japan
| | - Ryota Ishibashi
- Department of Neurosurgery, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-kofukai, 2-4-20 Ogimachi Kita, Osaka, 530-8480, Japan
| | - Hiroki Toda
- Department of Neurosurgery, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-kofukai, 2-4-20 Ogimachi Kita, Osaka, 530-8480, Japan
| | - Koichi Iwasaki
- Department of Neurosurgery, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-kofukai, 2-4-20 Ogimachi Kita, Osaka, 530-8480, Japan
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27
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Li X, Krecke KN, Weinshenker BG, Clarke MJ, Zekeridou A, Toledano M, Flanagan EP. Hemicord White Matter Enhancement and the Croissant Sign in Cervical Spondylotic Myelopathy. Neurology 2023; 101:968-969. [PMID: 37648534 PMCID: PMC10663031 DOI: 10.1212/wnl.0000000000207793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 07/06/2023] [Indexed: 09/01/2023] Open
Affiliation(s)
- Xiaoyang Li
- From the Department of Neurology (X.L., A.Z., M.T., E.P.F.), and Department of Radiology (K.N.K.), Mayo Clinic, Rochester, MN; Department of Neurology (B.G.W.), University of Virginia, Charlottesville; and Department of Neurosurgery (M.J.C.), and Department of Laboratory Medicine and Pathology (A.Z., E.P.F.), Mayo Clinic, Rochester, MN
| | - Karl N Krecke
- From the Department of Neurology (X.L., A.Z., M.T., E.P.F.), and Department of Radiology (K.N.K.), Mayo Clinic, Rochester, MN; Department of Neurology (B.G.W.), University of Virginia, Charlottesville; and Department of Neurosurgery (M.J.C.), and Department of Laboratory Medicine and Pathology (A.Z., E.P.F.), Mayo Clinic, Rochester, MN
| | - Brian G Weinshenker
- From the Department of Neurology (X.L., A.Z., M.T., E.P.F.), and Department of Radiology (K.N.K.), Mayo Clinic, Rochester, MN; Department of Neurology (B.G.W.), University of Virginia, Charlottesville; and Department of Neurosurgery (M.J.C.), and Department of Laboratory Medicine and Pathology (A.Z., E.P.F.), Mayo Clinic, Rochester, MN
| | - Michelle J Clarke
- From the Department of Neurology (X.L., A.Z., M.T., E.P.F.), and Department of Radiology (K.N.K.), Mayo Clinic, Rochester, MN; Department of Neurology (B.G.W.), University of Virginia, Charlottesville; and Department of Neurosurgery (M.J.C.), and Department of Laboratory Medicine and Pathology (A.Z., E.P.F.), Mayo Clinic, Rochester, MN
| | - Anastasia Zekeridou
- From the Department of Neurology (X.L., A.Z., M.T., E.P.F.), and Department of Radiology (K.N.K.), Mayo Clinic, Rochester, MN; Department of Neurology (B.G.W.), University of Virginia, Charlottesville; and Department of Neurosurgery (M.J.C.), and Department of Laboratory Medicine and Pathology (A.Z., E.P.F.), Mayo Clinic, Rochester, MN
| | - Michel Toledano
- From the Department of Neurology (X.L., A.Z., M.T., E.P.F.), and Department of Radiology (K.N.K.), Mayo Clinic, Rochester, MN; Department of Neurology (B.G.W.), University of Virginia, Charlottesville; and Department of Neurosurgery (M.J.C.), and Department of Laboratory Medicine and Pathology (A.Z., E.P.F.), Mayo Clinic, Rochester, MN
| | - Eoin P Flanagan
- From the Department of Neurology (X.L., A.Z., M.T., E.P.F.), and Department of Radiology (K.N.K.), Mayo Clinic, Rochester, MN; Department of Neurology (B.G.W.), University of Virginia, Charlottesville; and Department of Neurosurgery (M.J.C.), and Department of Laboratory Medicine and Pathology (A.Z., E.P.F.), Mayo Clinic, Rochester, MN.
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28
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Kinoshita H, Hongo M, Kasukawa Y, Kudo D, Kimura R, Miyakoshi N. Two Cases of Degenerative Cervical Spondylotic Myelopathy in Adults with Athetoid and Dystonic Cerebral Palsy. Am J Case Rep 2023; 24:e941158. [PMID: 37950431 PMCID: PMC10649224 DOI: 10.12659/ajcr.941158] [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] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 10/02/2023] [Accepted: 09/14/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND Patients with athetoid and dystonic cerebral palsy (ADCP) may develop degenerative changes in the cervical spine that can aggravate their neurological symptoms in adulthood. This report is of 2 cases of ADCP associated with degenerative cervical spondylotic myelopathy in a 39-year-old woman and a 52-year-old man, requiring different surgical treatments. CASE REPORT Case 1. The patient was a 39-year-old woman who had fallen down 7 years before surgery and had since been walking with a cane. Her gait disturbance had worsened in the 2 years prior to surgery, and numbness in her upper limbs appeared. In the year before surgery, spasticity and numbness in the lower limbs worsened, and fine motor impairment also appeared. Because of mild involuntary movements of the neck, cervical laminoplasty from C3 to C6 was performed, and her symptoms remained stable until the last follow-up 4.5 years after surgery. Case 2. The patient was a 52-year-old man who had fallen down 7 years before surgery, resulting in transient limb weakness. In the year before surgery, he had developed fine motor impairment. He subsequently developed gait disturbance and requested cervical surgery. Because of involuntary movements involving the neck and trunk, he underwent cervical posterior fusion from C2 to T1. Six months after surgery, the gait disturbance had improved. CONCLUSIONS This report describes 2 adults with a history of ADCP since birth and highlights that degenerative changes of the cervical spine can occur at a relatively early age in adulthood, requiring an individualized approach to management.
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29
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Coradine TLC, Guida LDOC, Fraiman P, Santos AJ, Pedroso JL, Barsottini OGP. Post-transplant lymphoproliferative disorder myeloradiculopathy. Pract Neurol 2023; 23:408-410. [PMID: 37147122 DOI: 10.1136/pn-2023-003696] [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] [Subscribe] [Scholar Register] [Accepted: 04/12/2023] [Indexed: 05/07/2023]
Abstract
A 56-year-old woman developed progressive subacute lower limb weakness with sensory and autonomic abnormalities. She had received a living-donor kidney transplantation 21 years before for end-stage chronic kidney disease and took mycophenolate mofetil and prednisolone. MR scan of the spinal cord showed bilateral cauda equina gadolinium enhancement and MR scan of the brain showed enhancing nodular hyperintensities in the internal capsule and globus pallidus. Cerebrospinal fluid (CSF) showed a pleocytosis with extremely low glucose, and positive DNA-PCR for Epstein-Barr virus. Her condition worsened despite empirically guided antimicrobial treatment. CSF immunophenotyping later identified mature, clonal B lymphocytes of large size, expressing CD19, CD20, CD200 antigens, and kappa light chain immunoglobulin, with absent CD5 and CD10 expression. We diagnosed a myeloradiculopathy from a monomorphic post-transplant lymphoproliferative disorder. This condition occurs after kidney transplantation and falls on the lymphoma spectrum. We review its clinical features, diagnosis and management.
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Affiliation(s)
| | | | - Pedro Fraiman
- Departament of Neurology and Neurosurgery, General Neurology Unit, Universidade Federal de São Paulo, Sao Paulo, Brazil
| | - Adrialdo José Santos
- Departament of Neurology and Neurosurgery, Neuro-Oncology Unit, Universidade Federal de São Paulo, São Paulo, Brazil
| | - José Luiz Pedroso
- Departament of Neurology and Neurosurgery, General Neurology Unit, Universidade Federal de São Paulo, Sao Paulo, Brazil
| | - Orlando G P Barsottini
- Departament of Neurology and Neurosurgery, General Neurology Unit, Universidade Federal de São Paulo, Sao Paulo, Brazil
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30
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Shimizu T, Otsuki B, Sono T, Matsuda S. Blade-Related Vertebral Fracture After Anterior Cervical Discectomy and Fusion with a Zero-Profile Cage: A Case Report. JBJS Case Connect 2023; 13:01709767-202312000-00015. [PMID: 37856621 DOI: 10.2106/jbjs.cc.23.00417] [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] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
CASE We present a case of a 79-year-old man with degenerative cervical myelopathy treated with anterior cervical discectomy and fusion (ACDF) using a zero-profile cage. Postoperatively, the patient experienced a rare complication of anchoring blade-related adjacent vertebral fracture leading to construct failure and recurrence of myelopathic symptoms, necessitating revision surgery. CONCLUSION This case emphasizes the importance of precision in the surgical technique, specifically in the placement of Caspar pins and anchoring blades. It also underscores the need for a high index of suspicion for potential hardware-related complications in patients presenting with recurring symptoms post-ACDF, contributing to the understanding of such rare complications.
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Affiliation(s)
- Takayoshi Shimizu
- Department of Orthopedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Corrêa DG, da Cruz LCH, da Rocha AJ, Pacheco FT. Imaging Aspects of Toxic and Metabolic Myelopathies. Semin Ultrasound CT MR 2023; 44:452-463. [PMID: 37555682 DOI: 10.1053/j.sult.2023.03.013] [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] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Metabolic and toxic myelopathies usually occurs due to several different causes. Metabolic myelopathy usually occurs due to deficiency of a nutrient, such as vitamin B12. Toxic myelopathy occurs secondary to the exposure to an external toxic agent. Although they may have a difficult diagnosis, determination of the specific cause of myelopathy is of utmost importance, because many causes are amenable to treatment. Although they have many clinical, electrophysiologic, and neuropathologic similarities, imaging may aid in the suspicion of toxic or metabolic myelopathy. The aim of this article, is to review the imaging features of the main toxic and metabolic myelopathies.
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Affiliation(s)
- Diogo Goulart Corrêa
- Department of Radiology, Clínica de Diagnóstico por Imagem (CDPI)/DASA, Rio de Janeiro, RJ, Brazil; Department of Radiology, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil.
| | | | - Antônio José da Rocha
- Department of Neuroradiology, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil; Department of Radiology, DASA, São Paulo, SP, Brazil
| | - Felipe Torres Pacheco
- Department of Neuroradiology, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil; Department of Radiology, DASA, São Paulo, SP, Brazil
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Tamai K, Terai H, Watanabe S, Tashiro Y, Omine T, Katsuda H, Shimada N, Kobayashi Y, Nakamura H. The Impact of Multidisciplinary Approaches to Social Functioning on Surgical Outcomes After Surgery for Cervical Myelopathy. Spine (Phila Pa 1976) 2023; 48:1365-1372. [PMID: 37389977 DOI: 10.1097/brs.0000000000004764] [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: 03/23/2023] [Accepted: 06/19/2023] [Indexed: 07/02/2023]
Abstract
STUDY DESIGN Prospective cohort study. OBJECTIVE To identify the effects of multidisciplinary approaches (MAs) to improve social functioning (SF) on 1-year surgical outcomes in patients with cervical myelopathy. SUMMARY OF BACKGROUND DATA Despite significant improvement in cervical myelopathy, a patient's quality of life (QOL) sometimes does not improve postoperatively. A previous study revealed that SF, rather than myelopathy severity, correlated with QOL improvement after decompression surgery for cervical myelopathy. PATIENTS AND METHODS This study compared two prospective cohorts in Japan. Patients who underwent cervical laminoplasty for cervical myelopathy from 2018 to 2020 were enrolled in the control cohort. Patients who underwent the same surgery with the same indications between 2020 and 2021 were enrolled in the MA cohort. Patients in the control cohort were treated with a standard care protocol, and those in the MA cohort were treated with a multidisciplinary protocol that focused on SF improvement. The changes in the total Japanese Orthopedic Association (JOA) score and in the domains of the JOA scores (upper limb function, lower limb function, upper limb sensory, and lower limb sensory) from preoperatively to 1 year postoperatively were compared between the control and MA cohorts using a mixed-effect model. RESULTS The control and MA cohorts comprised 140 and 31 patients, respectively. The improvement in the JOA score was significantly better in the MA cohort than in the control cohort ( P = 0.040). In analyses of each JOA score domain, the improvement of upper limb function was significantly better in the MA cohort than in the control cohort ( P = 0.033). Similarly, the MA cohort demonstrated significantly higher patient-reported outcomes for upper extremity function than the control cohort ( P < 0.001). In addition, the self-care domain of QOL score at 1 year postoperatively was significantly higher in the MA cohort than in the control cohort ( P = 0.047). CONCLUSION MAs to improve/rebuild a patient's SF were effective in improving cervical myelopathy and the self-care domain of QOL. This study is the first to demonstrate the effectiveness of postoperative MAs in patients with cervical myelopathy. LEVEL OF EVIDENCE Level 3.
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Affiliation(s)
- Koji Tamai
- Department of Orthopedics, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Hidetomi Terai
- Department of Orthopedics, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Shingo Watanabe
- Department of Orthopedic Surgery, Shimada Hospital, Habikino, Japan
| | - Yoji Tashiro
- Department of Rehabilitation, Shimada Hospital, Habikino, Japan
| | - Toshimitsu Omine
- Department of Rehabilitation, Shimada Hospital, Habikino, Japan
- Department of Rehabilitation Sciences, Kansai University of Welfare Sciences, Kashihara, Japan
| | - Hiroshi Katsuda
- Department of Orthopedic Surgery, Shimada Hospital, Habikino, Japan
| | - Nagakazu Shimada
- Department of Orthopedic Surgery, Shimada Hospital, Habikino, Japan
| | - Yuto Kobayashi
- Department of Orthopedics, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Hiroaki Nakamura
- Department of Orthopedics, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
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Levi DJ, Brusko GD, Levi AD, Wang MY. Does hinge sidedness influence laterality of C5 palsy after expansile open-door cervical laminoplasty? Neurosurg Focus 2023; 55:E6. [PMID: 37657108 DOI: 10.3171/2023.6.focus23297] [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] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 06/13/2023] [Indexed: 09/03/2023]
Abstract
OBJECTIVE Cervical expansile open-door laminoplasties (EOLPs) have an open side and a hinge side, with the open side being bridged by grafts or miniplates. The authors explored the possibility that the open-door side might have a greater incidence of C5 palsy due to a greater stretch of the ipsilateral C5 nerve root. METHODS This study was a retrospective review of prospectively collected data over a period of 25 years specifically assessing surgical complications. Included were patients who underwent EOLP for myelopathy, radiculopathy, or mild central cord injuries (American Spinal Injury Association Impairment Scale [AIS] grade D). Exclusion criteria included preexisting C5 weakness; patients with AIS grade A, B, or C injury; and added instrumentation or additional surgical procedures. Patients were monitored postoperatively for C5 palsy or any other complications. A comparison group included patients who underwent cervical laminectomy and fusion (CLF). RESULTS A total of 327 laminoplasties were collected, and 31 patients were excluded because of severe spinal cord injury (AIS grades A-C), 3 for preoperative C5 weakness, and 21 for instrumentation or additional surgical procedures. Thus, 272 patients were analyzed with a mean age of 59.9 years (range 22-88 years). Diagnoses at presentation were cervical myelopathy (84.1%), central cord syndrome (7.2%), cervical myeloradiculopathy (3.4%), ossification of the posterior longitudinal ligament (1.9%), and other (3.4%). The most common complications were C5 palsy (n = 7, 2.6%) and wound infection (n = 7, 2.6%). Of the 7 cases of postoperative C5 palsies in this study, 6 occurred on the side of the open door. Of the C5 palsies, 2 were mild, 3 were moderate, and 2 were severe. Two of the 7 C5 palsies had a delayed (> 24 hours) onset. The C5 palsy incidence after CLF was 2.7% with no side preference. CONCLUSIONS C5 palsy after cervical decompression for myelopathy is a known occurrence, with a rate of 2.6% in the current study. The authors found that C5 palsies more commonly occur on the open side of the laminoplasty. This could be due to a greater manipulation of the nerve root on the side of the open door or greater stretch of the C5 root on the open-door side. If clinical symptoms and anatomical stenosis are symmetric, the authors recommend creating the laminoplasty hinge on the patient's dominant side to minimize potential loss of dominant proximal arm function.
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Affiliation(s)
- David J Levi
- 1University of Miami Miller School of Medicine, Miami; and
| | - G Damian Brusko
- 2Department of Neurological Surgery, The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida
| | - Allan D Levi
- 2Department of Neurological Surgery, The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida
| | - Michael Y Wang
- 2Department of Neurological Surgery, The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida
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Wang Y, Ma Y, Song Z, Yang C, Tu T, Yang K, He C, Li G, Hu P, Sun L, Ye M, Zhang H. Clinical and prognostic features of venous hypertensive myelopathy from craniocervical arteriovenous fistulas: a retrospective cohort study. J Neurosurg 2023; 139:687-697. [PMID: 36640099 DOI: 10.3171/2022.11.jns221958] [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] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 11/29/2022] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Current knowledge about venous hypertensive myelopathy (VHM) is incomplete. This study was performed with the aim of clarifying the clinical features and outcomes of craniocervical VHM. METHODS This retrospective, single-center cohort study included 65 patients with craniocervical junction arteriovenous fistulas resulting in VHM treated in Xuanwu Hospital from January 1, 2002, to December 30, 2020. All patients underwent microsurgery or endovascular treatment. The primary outcome was neurological function assessment using the Japanese Orthopaedic Association (JOA) scale, modified Aminoff-Logue Scale (mALS), and Venous Hypertensive Myelopathy Scale (VHMS). The secondary outcomes were recurrences and postoperative adverse events. Pearson linear regression and receiver operating characteristic curves were used to evaluate the relationships among the three scales. Kaplan-Meier and multivariate logistic regression analyses were performed to predict outcomes. RESULTS The mean patient age was 57.4 ± 11.4 years, and 88% of patients were male. The 1-year follow-up rate was 83.1%, and the 5-year follow-up rate was 50.8%. The VHMS was correlated with the JOA (R2 = 0.6722) and mALS (R2 = 0.7399) and increased the assessment accuracy by approximately 20% when compared with the other two scales. Overall, 25.9% of patients experienced delayed neurological decline beyond the 1-year follow-up. Further logistic regression suggested that age > 65 years was an independent predictor (OR 7.831, 95% CI 1.090-56.266; p = 0.041). Embolic recanalization and new bilateral symmetry feeders were the major reasons for recurrence. Recurrence increased the risk of adverse events after the second surgery (OR 20.455, 95% CI 1.170-357.320; p = 0.039). CONCLUSIONS CCJ AVFs resulting in VHM are a rare but deadly complication, and providers should be cautious of age-related delayed neurological decline and strive for a one-time anatomical cure.
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Affiliation(s)
- Yinqing Wang
- 1Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
- 2China International Neuroscience Institute (China-INI), Xuanwu Hospital, Capital Medical University, Beijing; and
| | - Yongjie Ma
- 1Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
- 2China International Neuroscience Institute (China-INI), Xuanwu Hospital, Capital Medical University, Beijing; and
| | - Zihao Song
- 1Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
| | - Chengbin Yang
- 1Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
| | - Tianqi Tu
- 1Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
| | - Kun Yang
- 3Department of Evidence-Based Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Chuan He
- 1Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
| | - Guilin Li
- 1Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
| | - Peng Hu
- 1Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
| | - Liyong Sun
- 1Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
| | - Ming Ye
- 1Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
| | - Hongqi Zhang
- 1Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
- 2China International Neuroscience Institute (China-INI), Xuanwu Hospital, Capital Medical University, Beijing; and
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Abstract
Fluid collections after spine surgery are rare complications, although potentially grave, and may be broadly grouped into two major categories. Symptomatic postoperative epidural hematomas have some known risk factors and can present with a widely variable profile of signs and symptoms. Treatment involves emergent surgical evacuation to reduce the risk of permanent neurologic deficit. Postoperative seroma may lead to disruption of wound healing and deep infection and has been associated with the use of recombinant human bone mineral protein. These diagnoses may present diagnostic challenges; thorough understanding of the involved pathophysiology, meticulous clinical evaluation, and radiographic interpretation are critical to appropriate management and optimal outcome.
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Affiliation(s)
- Alexander J Butler
- From the Department of Orthopaedic Surgery, Lenox Hill Hospital Northwell Health, New York, NY (Butler), the Department of Orthopaedic Surgery, University of Miami, Miami, FL (Mohile), and the Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL (Phillips)
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Amraee A, Tohidkia MR, Darvish L, Tarighatnia A, Robatmili N, Rahimi A, Rezaei N, Ansari F, Teshnizi SH, Aghanejad A. Spinal Reirradiation-Mediated Myelopathy: A Systematic Review and Meta-Analysis. Clin Oncol (R Coll Radiol) 2023; 35:576-585. [PMID: 37301719 DOI: 10.1016/j.clon.2023.05.017] [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] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 05/12/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
Reirradiation of the spine is carried out in 42% of patients who do not respond to treatment or have recurrent pain. However, there are few studies and data on the effect of reirradiation of the spine and the occurrence of acute and chronic side-effects caused by reirradiation, such as myelopathy, in these patients. This meta-analysis aimed to determine the safe dose in terms of biological effective dose (BED), cumulative dose and dose interval between BED1 and BED2 to decrease or prevent myelopathy and pain control in patients undergoing radiation therapy in the spinal cord. A search was carried out using EMBASE, MEDLINE, PUBMED, Google Scholar, Cochrane Collaboration library electronic databases, Magiran, and SID from 2000 to 2022 to recognise qualified studies. In total, 17 primary studies were applied to estimate the pooled effect size. The random effects model showed that the pooled BED in the first stage, the BED in the second stage and the cumulative BED1 and BED2 were estimated at 77.63, 58.35 and 115.34 Gy, respectively. Studies reported on dose interval. The results of a random effects model showed that the pooled interval was estimated at 13.86 months. The meta-analysis revealed that using appropriate BED1 and/or BED2 in a safe interval between the first and second phases of treatment can have an influential role in preventing or reducing the effects of myelopathy and regional control pain in spinal reirradiation.
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Affiliation(s)
- A Amraee
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Medical Physics, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - M R Tohidkia
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - L Darvish
- Mother and Child Welfare Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - A Tarighatnia
- Department of Medical Physics, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - N Robatmili
- Department of Radiotherapy, Sina Hospital, Arak, Iran; Department of Medical Physics, School of Medicine, Kashan University of Medical Sciences, Tehran, Iran
| | - A Rahimi
- Department of Medical Physics, School of Medicine, Kashan University of Medical Sciences, Tehran, Iran
| | - N Rezaei
- Department of Medical Physics, School of Medicine, Kashan University of Medical Sciences, Tehran, Iran
| | - F Ansari
- Department of Radiation Sciences, School of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran; Nursing and Midwifery School, Hormozgan University of Medical Sciences, Bandar-abbas, Iran
| | - S H Teshnizi
- Nursing and Midwifery School, Hormozgan University of Medical Sciences, Bandar-abbas, Iran
| | - A Aghanejad
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Nuclear Medicine, Faculty of Medicine, Imam Reza General Hospital, Tabriz University of Medical Sciences, Tabriz, Iran.
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Shangguan Z, Chen G, Liu W, Li J. Clinical outcomes of modified versus traditional expansive open-door laminoplasty for cervical spondylotic myelopathy: A single-institution experience. J Orthop Surg (Hong Kong) 2023; 31:10225536231209556. [PMID: 38006252 DOI: 10.1177/10225536231209556] [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] [Indexed: 11/26/2023] Open
Abstract
PURPOSE To compare the surgical outcomes of modified expansive open-door laminoplasty (EOL) (C4-C6) and traditional EOL (C3-C7) in patients with cervical spondylotic myelopathy (CSM). METHODS One hundred and two CSM patients were retrospectively recruited from Fujian Medical University Union Hospital between March 2012 and December 2019. Seventy-one patients with CSM underwent modified EOL, and 31 patients underwent traditional EOL. The primary endpoint was axial symptoms. RESULTS Patients who underwent modified EOL had a significantly lower incidence of axial symptoms (odds ratio: 0.273; 95% confidence interval: 0.184-0.691; p = .002). The length of hospital stay (p = .263), and intraoperative blood loss (p = .402) were not significantly different between the groups. Significantly more postoperative drainage was observed in patients who underwent modified EOL (p < .001), while the cost of hospitalization in patients treated with traditional EOL was higher (p = .011). There were significant differences between modified and traditional EOL for the changes in range of motion (p < .001), modified Japanese Orthopaedic Association score (p = .001), and the Nurick grade (p = .014), while the changes of visual analogue scale (p = .250), and the neck disability index (p = .134) were not significantly different between the groups. CONCLUSION This study found modified EOL may decrease the incidence of axial symptoms in patients with CSM compared to traditional EOL.
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Affiliation(s)
| | - Gang Chen
- Fujian Medical University Union Hospital, Fuzhou, China
| | - Wenge Liu
- Fujian Medical University Union Hospital, Fuzhou, China
| | - Jiandong Li
- Fujian Medical University Union Hospital, Fuzhou, China
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Jiang Q, Gao G, Tao B, Gao H, Wang H, Wang P, Sun M, Shang A. Thoracic Anterior Spinal Cord Herniation: Treatment and Prognosis Outcome of Seven Patients. World Neurosurg 2023; 176:e697-e703. [PMID: 37295472 DOI: 10.1016/j.wneu.2023.06.001] [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] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND This study aimed to investigate the diagnosis and treatment of thoracic anterior spinal cord herniation, a rare condition. METHODS Clinical data of 7 patients diagnosed with thoracic anterior spinal cord herniation were analyzed. All patients were diagnosed with a complete preoperative examination and scheduled for surgical treatment. In addition, regular follow-up was performed after the surgery, and the operation's efficacy was evaluated according to clinical symptoms, imaging findings, and improvement in neurologic function. RESULTS All patients underwent spinal cord release with an anterior dural patch. Notably, no severe postoperative surgical complications were observed. All patients were followed up for 12-75 months, with an average duration of approximately 46.5 months. Post-operative pain symptoms were controlled, neurological dysfunction and related symptoms improved to varying degrees, and anterior spinal cord herniation did not recur. The modified Japanese Orthopedic Association score at the last follow-up was significantly higher than the preoperative score. CONCLUSIONS Clinicians should avoid misdiagnosing patients with thoracic anterior spinal cord herniation with intervertebral disc herniation, arachnoid cysts, and other related diseases, and patients should undergo surgical treatment as early as possible. In addition, surgical treatment can protect the neurologic function of patients and effectively prevent the aggravation of clinical symptoms.
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Affiliation(s)
| | - Gan Gao
- Chinese PLA Medical School, Beijing, China
| | - Benzhang Tao
- Department of Neurosurgery, Chinese PLA General Hospital, Beijing, China; Tianjin Medical University, Tianjin, China
| | - Haihao Gao
- Department of Neurosurgery, Chinese PLA General Hospital, Beijing, China
| | - Hui Wang
- Department of Neurosurgery, Chinese PLA General Hospital, Beijing, China
| | - Peixin Wang
- Department of Neurosurgery, PLA Strategic Support Force Characteristic Medical Center, Beijing, China
| | - Mengchun Sun
- Chinese PLA Medical School, Beijing, China; Medical School, Nankai University, Tianjin, China
| | - Aijia Shang
- Department of Neurosurgery, Chinese PLA General Hospital, Beijing, China.
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Nagao K, Kadoya M, Shimizu Y, Murahara N, Fujii H, Takechi C, Aono S. Magnetic Resonance Imaging-negative Acute Inflammatory Myelopathy following Severe Acute Respiratory Syndrome Coronavirus 2 Infection. Intern Med 2023; 62:2267-2272. [PMID: 37164679 PMCID: PMC10465296 DOI: 10.2169/internalmedicine.1344-22] [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: 11/24/2022] [Accepted: 03/23/2023] [Indexed: 05/12/2023] Open
Abstract
A 55-year-old woman was admitted to our hospital because of gait disturbance and urinary retention that acutely emerged 1 week after severe acute respiratory syndrome coronavirus 2 infection. Acute inflammatory myelopathy was clinically suspected, based on bilateral lower-limb weakness with an extensor plantar response and an elevated immunoglobulin G level in the cerebrospinal fluid. Whole-spine magnetic resonance imaging findings were normal. The central conduction time was extended, based on somatosensory evoked potentials. Her lower-limb weakness was partially ameliorated with immunosuppressive therapy. Postinfectious myelopathy is a rare neurological complication of coronavirus disease 2019 and can develop with normal radiological findings.
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Affiliation(s)
- Kaori Nagao
- Department of Internal Medicine, Japan Self-Defense Forces Central Hospital, Japan
| | - Masato Kadoya
- Department of Internal Medicine, Japan Self-Defense Forces Central Hospital, Japan
| | - Yukie Shimizu
- Department of Internal Medicine, Japan Self-Defense Forces Central Hospital, Japan
| | - Nami Murahara
- Department of Internal Medicine, Japan Self-Defense Forces Central Hospital, Japan
| | - Hiroko Fujii
- Department of Internal Medicine, Japan Self-Defense Forces Central Hospital, Japan
| | - Chizuko Takechi
- Department of Internal Medicine, Japan Self-Defense Forces Central Hospital, Japan
| | - Shigeaki Aono
- Department of Internal Medicine, Japan Self-Defense Forces Central Hospital, Japan
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40
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Tian X, Rudd S, Yang D, Ding W, Yang S. Anterior Cervical Hybrid Decompression and Fusion Surgery to Treat Multilevel Cervical Spondylotic Myelopathy. J Vis Exp 2023. [PMID: 37458422 DOI: 10.3791/65034] [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] [Subscribe] [Scholar Register] [Indexed: 07/20/2023] Open
Abstract
Cervical spondylotic myelopathy (CSM) is a common disease resulting from intervertebral disc herniation, ossification of the posterior longitudinal ligament, and other pathological changes that cause spinal cord compression. CSM progresses insidiously with mild upper-limb numbness, which patients tend to ignore. As the condition worsens, the patients may experience a limp, limited fine motor activity, and eventually, a loss of daily activity. Conservative treatments, such as physical therapy and medication, are frequently ineffective for CSM. Once surgery is deemed to be required, decompression surgery is the best option. So far, both anterior cervical discectomy and fusion (ACDF) and anterior cervical corpectomy and fusion (ACCF) have been commonly used to treat CSM. In addition, a type of hybrid procedure that combines ACDF with ACCF has been used to treat some CSM cases and achieved satisfying results. Thus, this study aims to introduce this hybrid surgical technique and advocate for it based on its patient success.
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Affiliation(s)
- Xiaoming Tian
- Department of Spinal Surgery, The Third Hospital of Hebei Medical University
| | - Samuel Rudd
- School of Chemical Engineering, The University of Queensland. St Lucia
| | - Dalong Yang
- Department of Spinal Surgery, The Third Hospital of Hebei Medical University
| | - Wenyuan Ding
- Department of Spinal Surgery, The Third Hospital of Hebei Medical University;
| | - Sidong Yang
- Department of Spinal Surgery, The Third Hospital of Hebei Medical University;
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Lu H, Ma YJ, Liu H, Li HF. Clinical Reasoning: A 49-Year-Old Woman With Isolated Sinus Intracranial Dural Arteriovenous Fistula With Perimedullary Drainage. Neurology 2023; 100:921-926. [PMID: 36690454 PMCID: PMC10186218 DOI: 10.1212/wnl.0000000000206824] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 12/02/2022] [Indexed: 01/24/2023] Open
Abstract
While demyelination is the most common etiology of longitudinally extensive myelopathy, other causes are important to recognize. In this study, we present the case of a longitudinal cervical lesion with a very rare cause. We discuss the approach to the differential diagnosis and workup for longitudinal myelopathy. This clinical reasoning case also illustrates the anatomical relationship between symptomatic spinal cord lesions and nonsymptomatic intracranial etiologies.
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Affiliation(s)
- Hui Lu
- From the Department of Neurology (H. Lu, H.-F.L.); Department of Neurosurgery (Y.M.), Xuanwu Hospital, Capital Medical University, Beijing; and Department of Neurology (H. Liu), The Affiliated Hospital of Chengde Medical College, Hebei, China
| | - Yong-Jie Ma
- From the Department of Neurology (H. Lu, H.-F.L.); Department of Neurosurgery (Y.M.), Xuanwu Hospital, Capital Medical University, Beijing; and Department of Neurology (H. Liu), The Affiliated Hospital of Chengde Medical College, Hebei, China
| | - Heng Liu
- From the Department of Neurology (H. Lu, H.-F.L.); Department of Neurosurgery (Y.M.), Xuanwu Hospital, Capital Medical University, Beijing; and Department of Neurology (H. Liu), The Affiliated Hospital of Chengde Medical College, Hebei, China
| | - Hai-Feng Li
- From the Department of Neurology (H. Lu, H.-F.L.); Department of Neurosurgery (Y.M.), Xuanwu Hospital, Capital Medical University, Beijing; and Department of Neurology (H. Liu), The Affiliated Hospital of Chengde Medical College, Hebei, China.
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Chhajed R, Turel MK. Intramedullary Schistosomiasis: An Unusual Cause of Myelopathy in India. Neurol India 2023; 71:589-590. [PMID: 37322775 DOI: 10.4103/0028-3886.378704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Affiliation(s)
- Rahul Chhajed
- Department of Neurosurgery, Wockhardt Hospitals, Mumbai, Maharashtra, India
| | - Mazda K Turel
- Department of Neurosurgery, Wockhardt Hospitals, Mumbai, Maharashtra, India
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Affiliation(s)
- Tomofumi Hayashi
- Department of General Internal Medicine and Infectious Diseases, National Hospital Organization Tokyo Medical Center, Japan
| | - Nobuaki Mori
- Department of General Internal Medicine and Infectious Diseases, National Hospital Organization Tokyo Medical Center, Japan
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Terashima Y, Yurube T, Sumi M, Kanemura A, Uno K, Kakutani K. Clinical and Radiological Characteristics of Cervical Spondylotic Myelopathy in Young Adults: A Retrospective Case Series of Patients under Age 30. Medicina (B Aires) 2023; 59:medicina59030539. [PMID: 36984540 PMCID: PMC10058945 DOI: 10.3390/medicina59030539] [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] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/19/2023] [Accepted: 03/08/2023] [Indexed: 03/12/2023] Open
Abstract
Background and Objectives: Cervical spondylotic myelopathy (CSM) is a degenerative disease and occurs more frequently with age. In fact, the development of non-herniated CSM under age 30 is uncommon. Therefore, a retrospective case series was designed to clarify clinical and radiological characteristics of young adult patients with CSM under age 30. Materials and Methods: A total of seven patients, all men, with non-herniated, degenerative CSM under age 30 were retrieved from the medical records of 2598 hospitalized CSM patients (0.27%). Patient demographics and backgrounds were assessed. The sagittal alignment, congenital canal stenosis, dynamic canal stenosis, and vertebral slips in the cervical spine were radiographically evaluated. The presence of degenerative discs, intramedullary high-signal intensity lesions, and sagittal spinal cord compression on T2-weighted magnetic resonance images (MRIs) and axial spinal cord deformity on T1-weighted MRIs was identified. Results: All patients (100.0%) had relatively high daily sports activities and/or jobs requiring frequent neck extension. Cervical spine radiographs revealed the sagittal alignment as the “reverse-sigmoid” type in 57.1% of patients and “straight” type in 28.6%. All patients (100.0%) presented congenital cervical stenosis with the canal diameter ≤12 mm and/or Torg–Pavlov ratio <0.80. Furthermore, all patients (100.0%) developed dynamic stenosis with the canal diameter ≤12 mm and/or posterior vertebral slip ≥2 mm at the neurologically responsible segment in full-extension position. In MRI examination, all discs at the neurologically responsible level (100.0%) were degenerative. Intramedullary abnormal intensity lesions were detected in 85.7% of patients, which were all at the neurologically responsible disc level. Conclusions: Patients with non-herniated, degenerative CSM under age 30 are rare but more common in men with mild sagittal “reverse-sigmoid” or “straight” deformity and congenital canal stenosis. Relatively high daily activities, accumulating neck stress, can cause an early development of intervertebral disc degeneration and dynamic canal stenosis, leading to CSM in young adults.
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Affiliation(s)
- Yoshiki Terashima
- Department of Orthopaedic Surgery, Kobe Rosai Hospital, Kobe 651-0053, Japan
| | - Takashi Yurube
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
- Correspondence: ; Tel.: +81-78-382-5985
| | - Masatoshi Sumi
- Department of Orthopaedic Surgery, Mahoshi Hospital, Kobe 651-1242, Japan
| | - Aritetsu Kanemura
- Department of Orthopaedic Surgery, Kobe Rosai Hospital, Kobe 651-0053, Japan
| | - Koki Uno
- Department of Orthopaedic Surgery, Kobe Medical Center, Kobe 654-0155, Japan
| | - Kenichiro Kakutani
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
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Cuoco JA, Muthukumar S, Rogers CM, Entwistle JJ, Patel VM, Olasunkanmi AL, Witcher MR. Spinal Intradural Arachnoid Cysts in Adults: An Institutional Experience and Literature Review. Neurosurgery 2023; 92:450-463. [PMID: 36700689 DOI: 10.1227/neu.0000000000002231] [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] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 09/13/2022] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Adult spinal intradural arachnoid cysts are rare pathologic entities with an unclear etiopathogenesis. These lesions can be dichotomized into primary (idiopathic) or secondary (related to inflammation, intradural surgery, or trauma) etiologies. Limited series have depicted optimal management strategies and clinical outcomes. OBJECTIVE To illustrate our experience with spinal intradural arachnoid cysts and to present a literature review of surgically treated cysts to elucidate the clinical and anatomic differences between etiologies. METHODS Institutional review revealed 29 patients. Various data were extracted from the medical record. Initial and follow-up symptomatologies of the surgical cohort were compared. The literature review included case series describing cysts managed surgically. RESULTS From patients treated surgically at our institution (22), there was a significant reduction in thoracic back pain postoperatively ( P = .034). A literature review yielded 271 additional cases. Overall, primary and secondary lesions accounted for 254 and 39 cases, respectively. Cysts of secondary origin were more likely localized ventral to the spinal cord ( P = .013). The rate of symptomatic improvement after surgical intervention for primary cysts was more than double than that of secondary cysts ( P < .001). Compared with primary etiologies, the rates of radiographic progression ( P = .032) and repeat surgery ( P = .041) were each more than double for secondary cysts. CONCLUSION Surgical intervention for spinal intradural arachnoid cysts improves thoracic back pain. The literature supports surgical intervention for symptomatic primary spinal intradural arachnoid cysts with improved clinical outcomes. Surgery should be cautiously considered for secondary cysts given worse outcomes.
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Affiliation(s)
- Joshua A Cuoco
- Section of Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
- Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | | | - Cara M Rogers
- Section of Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
- Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - John J Entwistle
- Section of Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
- Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Vaibhav M Patel
- Section of Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
- Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Adeolu L Olasunkanmi
- Section of Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
- Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Mark R Witcher
- Section of Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
- Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
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Ali DM, Harrop J, Sharan A, Vaccaro AR, Sivaganesan A. Technical Aspects of Intra-Operative Ultrasound for Spinal Cord Injury and Myelopathy: A Practical Review. World Neurosurg 2023; 170:206-218. [PMID: 36323346 DOI: 10.1016/j.wneu.2022.10.101] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To compile intra-operative techniques, established imaging parameters, available equipment and software, and clinical applications of intraoperative ultrasound imaging (IOUSI) for spinal cord injury (SCI) and myelopathy. METHODS PubMed and Google Scholar were searched for relevant articles. The articles were reviewed and selected by 2 independent researchers. After article selection, data were extracted and summarized into research domains. PRISMA systematic review process was followed. RESULTS Of the 2477 articles screened, 16 articles met the inclusion criteria. In patients with SCI and myelopathy, common quantitative measurements obtained using IOUSI were noted: 1) ultrasound elastography, 2) midsagittal anteroposterior diameter, 3) transverse, 4) transverse diameter, 5) maximum spinal cord compression, and 6) compression ratioTo ensure adequate decompression and to look for residual compression, the lateral and the craniocaudal margins of the laminectomy site were inspected in both axial and sagittal planes. In instances where quantitative assessment was not possible, cord decompression and degree of residual compression were gauged by inspecting the interface between the ventral border of the spinal cord and any potentially compressive elements, and by searching for symmetric and rhythmic cerebrospinal fluid pulsations. Use of contrast-enhanced ultrasoundand molecular imaging are additional advances in objective assessments for SCI and myelopathy. CONCLUSIONS This review outlines the potential of IOUSI in patients presenting with SCI and myelopathy. Moreover, by identifying potential for inter-operator variability in certain subjective measurements, we illustrate the need for further research to quantify and standardize those assessments.
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Affiliation(s)
- Daniyal Mansoor Ali
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - James Harrop
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Ashwini Sharan
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Alexander R Vaccaro
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA; Rothman Orthopaedic Institute, Jefferson Health, Philadelphia, Pennsylvania, USA
| | - Ahilan Sivaganesan
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA.
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Li M, Zhang T, Zhang H, Zhang R, Li H, Gou X. Comparison of clinical efficacy between retention and removal of the vertebral bony endplate in anterior cervical discectomy and fusion for the treatment of cervical spondylotic myelopathy. J Orthop Sci 2023; 28:123-130. [PMID: 34895993 DOI: 10.1016/j.jos.2021.10.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 05/31/2021] [Revised: 09/22/2021] [Accepted: 10/26/2021] [Indexed: 01/12/2023]
Abstract
BACKGROUND Anterior cervical discectomy and fusion (ACDF) have a history of more than 60 years to treat cervical spondylotic myelopathy. This study is based on the original classic surgical procedure to remove the bony endplate to expand the range of vertical decompression to analyze and compare the clinical efficacy of two different ACDF in treating cervical spondylotic myelopathy. METHODS The inpatients in hospital were randomly divided into two groups A and B. Patients in Group A received ACDF surgery with bony endplates preserved, and patients in group B received ACDF surgery with bony endplates removed. All patients were followed-up for three years, and then compared the clinical efficacy from the following aspects, blood loss statistics during and after the operation, Japanese Orthopedic Association's scoring (JOA) standard for cervical spondylotic myelopathy, Cervical curvature index, cervical flexion and extension range, intervertebral bone graft fusion time and fusion rate. RESULTS 1. The operative time and intraoperative (postoperative) blood loss in group A were significantly better than that in group B, with statistical significance (P < 0.05)0.2. There was no significant difference in postoperative neurological function recovery, cervical curvature index, cervical flexion and extension activity, and Intervertebral fusion time between two groups (P > 0.05), while group A was superior to group B in terms of bone graft fusion rate (P < 0.05). 3. Four patients (6.7%) in group B suffered from dyspnea due to neck hematoma caused by drainage tube blockage, but all of them were cured immediately and no death occurred. CONCLUSIONS During the 3-year follow-up period after the operation, six patients in group B have subsidence and loosening of the internal fixator due to bone subsidence around the implant. Although immediate surgical treatment is not required, renovation surgery is inevitable in the long term.
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Affiliation(s)
- Mi Li
- Department of Orthopedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
| | - Tao Zhang
- Department of Orthopedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Hanjun Zhang
- Department of Orthopedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Rui Zhang
- Department of Orthopedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Huazhe Li
- Department of Orthopedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Xusheng Gou
- Department of Orthopedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
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Toop N, Gifford CS, McGahan BG, Gibbs D, Miracle S, Schwab JM, Motiei-Langroudi R, Farhadi HF. Influence of clinical and radiological parameters on the likelihood of neurological improvement after surgery for degenerative cervical myelopathy. J Neurosurg Spine 2023; 38:14-23. [PMID: 35986727 DOI: 10.3171/2022.6.spine2234] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 06/28/2022] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Degenerative cervical myelopathy (DCM) is routinely treated with surgical decompression, but disparate postoperative outcomes are frequently observed, ranging from complete neurological recovery to persistent decline. Although numerous clinical and radiological factors have been independently associated with failure to improve, the relative impact of these proposed risk factors remains obscure. In this study, the authors assess the combined role of clinical and radiographic parameters in contributing to failure to attain neurological improvement after surgery. METHODS A consecutive series of patients who underwent surgery for DCM between July 2013 and August 2018 at a single institution was identified from a prospectively maintained database. Retrospective chart review was undertaken to record perioperative clinical and radiographic parameters. Failure to improve on the last follow-up evaluation after surgery, defined as a change in modified Japanese Orthopaedic Association (mJOA) score less than 2, was the primary outcome in univariate and multivariate analyses. RESULTS The authors included 183 patients in the final cohort. In total, 109 (59.6%) patients improved (i.e., responders with ΔmJOA score ≥ 2) after surgery and 74 (40.4%) were nonresponders with ΔmJOA score < 2. Baseline demographic variables and comorbidity rates were similar, whereas baseline Nurick score was the only clinical variable that differed between responders and nonresponders (2.7 vs 3.0, p = 0.02). In contrast, several preoperative radiographic variables differed between the groups, including presence and degree of cervical kyphosis, number of levels with bidirectional cord compression, presence and number of levels with T2-weighted signal change, intramedullary lesion (IML) length, Torg ratio, and both narrowest spinal canal and cord diameter. On multivariate analysis, preoperative degree of kyphosis at C2-7 (OR 1.19, p = 0.004), number of levels with bidirectional compression (OR 1.83, p = 0.003), and IML length (OR 1.14, p < 0.001) demonstrated the highest predictive power for nonresponse (area under the receiver operating characteristic curve 0.818). A risk factor point system that predicted failure of improvement was derived by incorporating these 3 variables. CONCLUSIONS When a large spectrum of both clinical and radiographic variables is considered, the degree of cervical kyphosis, number of levels with bidirectional compression, and IML length are the most predictive of nonresponse after surgery for DCM. Assessment of these radiographic factors can help guide surgical decision-making and more appropriately stratify patients in clinical trials.
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Affiliation(s)
- Nathaniel Toop
- 1Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus; and
| | - Connor S Gifford
- 1Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus; and
| | - Ben G McGahan
- 1Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus; and
| | - David Gibbs
- 1Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus; and
| | - Shelby Miracle
- 1Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus; and
| | - Jan M Schwab
- 2Belford Center for Spinal Cord Injury, Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Rouzbeh Motiei-Langroudi
- 1Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus; and
| | - H Francis Farhadi
- 1Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus; and
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Kearns G, Bason J. Sensitization of Hoffmann's sign in response to a reverse Lhermitte's sign: a case report. J Man Manip Ther 2022; 30:357-364. [PMID: 35312464 PMCID: PMC9621270 DOI: 10.1080/10669817.2022.2056363] [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] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Neurologic clustering of findings is recommended with Cervical Spondylotic Myelopathy (CSM). Hoffmann's Sign and Reverse Lhermitte's Sign have been associated with CSM, which, however, have not been discussed as the only objective findings that may cause clinical uncertainty. CASE DESCRIPTION This case report describes how sensitizing Hoffmann's Sign following a Reverse Lhermitte's Sign guided reasoning, with a 66-year-old male presenting with a right lumbar radiculopathy diagnosis. Local lumbar symptoms and impairments were identified, however, a Reverse Lhermitte's Sign with cervical extension was the only finding that reproduced right lower extremity (LE) pain. Hoffmann's Sign, the only abnormal neurologic finding, became exaggerated when performed in cervical extension. Concern of an early presenting CSM accounting for right LE pain was considered. A neurosurgical consultation was initiated with concurrent guideline-based lumbar spine treatment and continued monitoring of neurologic status. OUTCOMES Seven weeks after evaluation, sudden worsening of right LE symptoms, hand numbness, ataxia, and grip weakness occurred. Cervical magnetic resonance imaging demonstrated C3-6 cord compression. A multi-level cervical decompression surgery was performed. DISCUSSION Using a sensitized Hoffmann's Sign-in response to a Reverse Lhermitte's Sign aided differential diagnosis of an early presenting CSM with reports of LE pain. The diagnostic utility of a sensitized Hoffmann's Sign is unknown.
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Affiliation(s)
- Gary Kearns
- Doctor of Physical Therapy (Dpt) Program, Department of Rehabilitation Sciences, School of Health Professions, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- CONTACT Gary Kearns Doctor of Physical Therapy (Dpt) Program, Department of Rehabilitation Sciences, School of Health Professions, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock79430, TX, USA
| | - Jillian Bason
- Texas Tech University Health Sciences Center School of Medicine, Lubbock Campus: Texas Tech University Health Sciences Center School of Medicine,Lubbock, TX, USA
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