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Hong YG, Kim HC, Jeon H, An SB, Lee JY, Lee JJ, Kim KJ, Kim CO, Shin DA, Yi S, Kim KN, Yoon DH, Kim TW, Ha Y. Association of frailty with regional sagittal spinal alignment in the elderly. J Clin Neurosci 2021; 96:172-179. [PMID: 34836786 DOI: 10.1016/j.jocn.2021.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/14/2021] [Accepted: 10/05/2021] [Indexed: 11/26/2022]
Abstract
The degenerative changes in the spine of the frail elderly gradually exacerbate the alignment of the spine as the degeneration progresses. This study was conducted to assess the relationship between frailty and spine sagittal alignment measured in terms of global, cervical, thoracic, and lumbo-pelvic parameters. In total, 101 patients aged 75 years and older hospitalized for spine surgery were prospectively enrolled. We evaluated spinal sagittal parameters by dividing them into global (C7 sagittal vertical axis [SVA] and T1 pelvic angle [T1PA]), cervical (the C2-7 Cobb angle, Jackson line, and C2-7 plumb line), thoracic (thoracic kyphosis [TK]), and lumbo-pelvic (pelvic tilt [PT] and pelvic incidence minus lumbar lordosis value [PI-LL]). Patient characteristics; the Fatigue, Resistance, Ambulation, Illness, Loss of Weight (FRAIL) scale; and sagittal spinal parameters were included in the analysis. Multiple regression analysis was performed to identify associations between the FRAIL scale and sagittal spinal parameters. The FRAIL scale showed correlations with global sagittal parameters (C7 SVA [β = 0.225, p = 0.029] and T1PA [β = 0.273, p = 0.008]) and lumbo-pelvic parameters (PT [β = 0.294, p = 0.004] and PI-LL [β = 0.323, p = 0.001). Cervical and thoracic parameters were not directly associated with the FRAIL scale. LL and PI-LL were associated with TK, and TK was associated with cervical parameters (the C2-7 Cobb angle, Jackson line and C2-7 plumb line). In conclusion, frailty status could be an important factor that influences sagittal spinal alignment in the elderly. In this study, it was found that frailty mainly affected the balance of lumbo-pelvic alignment, and consequently affected the balance of the whole spine.
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Affiliation(s)
- Yun Gi Hong
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Hyung-Cheol Kim
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Hyeongseok Jeon
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Seong Bae An
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Ji Yeon Lee
- Division of Geriatrics, Department of Internal Medicine, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Jong Joo Lee
- Department of Neurosurgery, Kangbuk Samsung Hospital, Sungkyunkwan University College of Medicine, Seoul, Republic of Korea
| | - Kwang Joon Kim
- Division of Geriatrics, Department of Internal Medicine, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Chang Oh Kim
- Division of Geriatrics, Department of Internal Medicine, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Dong Ah Shin
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Seong Yi
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Keung Nyun Kim
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Do Heum Yoon
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Tae Woo Kim
- Department of Medicine, Yonsei University Graduate School, Seoul, Republic of Korea; Department of Neurosurgery, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Republic of Korea.
| | - Yoon Ha
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Republic of Korea.
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Kim CW, Hyun SJ, Kim KJ. Systematic Review of Reciprocal Changes after Spinal Reconstruction Surgery : Do Not Miss the Forest for the Trees. J Korean Neurosurg Soc 2021; 64:843-852. [PMID: 34619822 PMCID: PMC8590906 DOI: 10.3340/jkns.2020.0234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 01/27/2021] [Indexed: 12/04/2022] Open
Abstract
The purpose of this review was to synthesize the research on global spinal alignment and reciprocal changes following cervical or thoracolumbar reconstruction surgery. We carried out a search of PubMed, EMBASE, and Cochrane Library for studies through May 2020, and ultimately included 11 articles. The optimal goal of a truly balanced spine is to maintain the head over the femoral heads. When spinal imbalance occurs, the human body reacts through various compensatory mechanisms to maintain the head over the pelvis and to retain a horizontal gaze. Historically, deformity correction has focused on correcting scoliosis and preventing scoliotic curve progression. Following substantial correction of a spinal deformity, reciprocal changes take place in the flexible segments proximal and distal to the area of correction. Restoration of lumbar lordosis following surgery to correct a thoracolumbar deformity induces reciprocal changes in T1 slope, cervical lordosis, pelvic shift, and lower extremity parameters. Patients with cervical kyphosis exhibit different patterns of reciprocal changes depending on whether they have head-balanced or trunk-balanced kyphosis. These reciprocal changes should be considered to in order to prevent secondary spine disorders. We emphasize the importance of evaluating the global spinal alignment to assess postoperative changes.
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Affiliation(s)
- Chang-Wook Kim
- Department of Neurosurgery, Spine Center, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Seung-Jae Hyun
- Department of Neurosurgery, Spine Center, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Ki-Jeong Kim
- Department of Neurosurgery, Spine Center, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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Lee CH, Won YI, San Ko Y, Yang SH, Kim CH, Park SB, Chung CK. Posterior-only versus combined anterior-posterior fusion in Scheuermann disease: a systematic review and meta-analysis. J Neurosurg Spine 2021; 34:608-616. [PMID: 33361485 DOI: 10.3171/2020.7.spine201062] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 07/28/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Combined anterior-posterior (AP) surgery is considered the gold standard for surgical treatment of Scheuermann kyphosis. There are trends toward posterior-only (PO) surgery for correcting this deformity because of the availability of multisegmental compression instruments and posterior shortening osteotomy. To date, surgical strategies for Scheuermann kyphosis remain controversial. The purpose of this study was to compare various surgical approaches for the treatment of Scheuermann kyphosis, including radiological correction and intraoperative outcomes, using a systematic review and meta-analysis. METHODS A comprehensive database search of PubMed, EMBASE, Web of Science, and Cochrane Library was performed to identify studies concerning Scheuermann kyphosis. The inclusion criteria were direct comparisons between AP and PO surgeries for Scheuermann kyphosis and assessment of the angle of thoracic kyphosis preoperatively and postoperatively. The authors used the principles of a cumulative meta-analysis by updating the pooled estimate of the treatment effect. RESULTS Data from 13 studies involving 1147 participants (542 patients in the AP group and 605 patients in the PO group) were included. The average age was 18.2 years for the AP and 17.9 years for the PO group. The overall mean difference of changes in thoracic kyphosis angles between the AP and PO surgeries was 0.23° (95% CI -2.24° to 2.71°). In studies in which posterior shortening osteotomies were not performed, PO surgery resulted in a significantly low degree of correction of thoracic kyphosis, with a mean difference of 5.59° (95% CI 0.34°-10.83°). Studies in which osteotomies were performed revealed that the angle of correction for PO surgery was comparable to that of AP surgery. Regardless of fixation methods, PO surgical approaches achieved comparable angles. CONCLUSIONS PO surgery using posterior osteotomies can achieve correction of Scheuermann kyphosis as successfully as AP surgery does. Reflecting the advancement of surgical technology, large prospective studies are necessary to identify the proper treatments for Scheuermann kyphosis.
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Affiliation(s)
- Chang-Hyun Lee
- 1Department of Neurosurgery, Seoul National University Hospital
- 2Department of Neurosurgery, Spine Center, Seoul National University Bundang Hospital
| | - Young Ii Won
- 1Department of Neurosurgery, Seoul National University Hospital
| | - Young San Ko
- 1Department of Neurosurgery, Seoul National University Hospital
| | - Seung Heon Yang
- 1Department of Neurosurgery, Seoul National University Hospital
| | - Chi Heon Kim
- 1Department of Neurosurgery, Seoul National University Hospital
- 3Department of Neurosurgery, Seoul National University College of Medicine
| | - Sung Bae Park
- 4Department of Neurosurgery, Seoul National University Boramae Hospital, Boramae Medical Center; and
| | - Chun Kee Chung
- 1Department of Neurosurgery, Seoul National University Hospital
- 3Department of Neurosurgery, Seoul National University College of Medicine
- 5Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea
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Lee JJ, Oh SH, Jeong YH, Park SM, Jeon HS, Kim HC, An SB, Shin DA, Yi S, Kim KN, Yoon DH, Shin JJ, Ha Y. Surgical Strategies for Cervical Deformities Associated With Neuromuscular Disorders. Neurospine 2020; 17:513-524. [PMID: 33022156 PMCID: PMC7538346 DOI: 10.14245/ns.2040464.232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 08/22/2020] [Indexed: 12/26/2022] Open
Abstract
Neuromuscular disorders (NMDs) are diseases involving the upper and lower motor neurons and muscles. In patients with NMDs, cervical spinal deformities are a very common issue; however, unlike thoracolumbar spinal deformities, few studies have investigated these disorders. The patients with NMDs have irregular spinal curvature caused by poor balance and poor coordination of their head, neck, and trunk. Particularly, cervical deformity occurs at younger age, and is known to show more rigid and severe curvature at high cervical levels. Muscular physiologic dynamic characteristics such as spasticity or dystonia combined with static structural factors such as curvature flexibility can result in deformity and often lead to traumatic spinal cord injury. In addition, postoperative complication rate is higher due to abnormal involuntary movement and muscle tone. Therefore, it is important to control abnormal involuntary movement perioperatively along with strong instrumentation for correction of deformity. Various methods such as botulinum toxin injection, physical therapy, muscle division technique, or intrathecal baclofen pump implant may help control abnormal involuntary movements and improve spinal stability. Surgical management for cervical deformities associated with NMDs requires a multidisciplinary effort and a customized strategy.
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Affiliation(s)
- Jong Joo Lee
- Department of Neurosurgery, Bundang Jesaeng Hospital, Seongnam, Korea
| | - Sung Han Oh
- Department of Neurosurgery, Bundang Jesaeng Hospital, Seongnam, Korea
| | - Yeong Ha Jeong
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Man Park
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Hyeong Seok Jeon
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Hyung-Cheol Kim
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Seong Bae An
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Ah Shin
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Seong Yi
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Keung Nyun Kim
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Do Heum Yoon
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jun Jae Shin
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Yoon Ha
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Korea
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Kim TW, Oh JK, Lee JY, Cho SK, An SB, Jeon HS, Kim HC, Kim KJ, Shin DA, Yi S, Kim KN, Yoon DH, Kim CO, Ha Y. Association of Frailty and Self-Care Activity With Sagittal Spinopelvic Alignment in the Elderly. World Neurosurg 2020; 138:e759-e766. [PMID: 32201289 DOI: 10.1016/j.wneu.2020.03.071] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 03/11/2020] [Accepted: 03/12/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To assess the relationship between frailty, activities of daily living (ADL), instrumental ADL (IADL), and sagittal spinopelvic parameters in the elderly. METHODS To compare the characteristics based on the FRAIL scale status (robust, prefrail, frail), continuous variables were analyzed using ANOVA with Tukey post hoc tests, and categorical variables were analyzed using χ2 and Fisher's exact test. Multivariate linear regression was used to investigate cross-sectional association between sagittal alignment and FRAIL status. RESULTS Comparison analysis of the 3 groups (robust, prefrail, frail) demonstrated that frailty scale had significant correlations with T1 pelvic angle (T1PA, P = 0.019), pelvic tilt (PT, P = 0.004), pelvic incidence minus lumbar lordosis (PI-LL, P = 0.004) and ADL (P = 0.017). Multiple regression analysis that controlled for confounding factors confirmed the correlations between frailty scale and spinopelvic parameters (C7 sagittal vertical axis [SVA], B = 17.49, P = 0.028; T1PA, B = 4.83, P = 0.029; PT, B = 4.62, P = 0.003; PI-LL value, B = 7.11, P = 0.005). In addition, the ADL was associated with T1PA (B = 4.06, P = 0.006); whereas the IADL was correlated with C7 SVA (B = 11.38, P = 0.005), T1PA (B = 3.36, P = 0.003), and PI-LL (B = 3.13, P = 0.018). CONCLUSIONS Higher frailty score was associated with higher grades of sagittal spinopelvic malalignment and ADL in the elderly. Furthermore, higher ADL and IADL scores were associated with higher grades of sagittal spinopelvic malalignment. Frailty, ADL, IADL, and sagittal spinopelvic parameters were closely related to each other in the elderly.
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Affiliation(s)
- Tae Woo Kim
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Korea; Department of Neurosurgery, Inje University Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Jae Keun Oh
- Department of Neurosurgery, Spine Center, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Ji Yeon Lee
- Division of Geriatrics, Department of Internal Medicine, College of Medicine, Yonsei University, Seoul, Korea
| | - Samuel K Cho
- Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Seong Bae An
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Korea
| | - Hyeong Seok Jeon
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Korea
| | - Hyung Cheol Kim
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Korea
| | - Kwang Joon Kim
- Division of Geriatrics, Department of Internal Medicine, College of Medicine, Yonsei University, Seoul, Korea
| | - Dong Ah Shin
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Korea
| | - Seong Yi
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Korea
| | - Keung Nyun Kim
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Korea
| | - Do Heum Yoon
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Korea
| | - Chang Oh Kim
- Division of Geriatrics, Department of Internal Medicine, College of Medicine, Yonsei University, Seoul, Korea
| | - Yoon Ha
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul, Korea.
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From the Champion to the Team: New Treatment Paradigms in Contemporary Neurosurgery. World Neurosurg 2019; 131:141-148. [DOI: 10.1016/j.wneu.2019.07.196] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/25/2019] [Accepted: 07/26/2019] [Indexed: 12/26/2022]
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Kyphectomy and interbody fixation using lag screws in a child with myelomeningocele kyphosis: a technical case report. Childs Nerv Syst 2019; 35:1407-1410. [PMID: 31139905 DOI: 10.1007/s00381-019-04217-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 05/21/2019] [Indexed: 10/26/2022]
Abstract
A 5-year-old boy had a thoracolumbar-level MMC that had been repaired at the day after birth and kyphotic deformity got worse as he grew. He complained of discomfort about not being able to take a supine posture and decided to perform surgery for kyphosis. In our case, surgical correction is offered to stop the deformity progression, manage the associated pain, and finally to gain sitting and supine posture. We report the surgical procedure with 4 levels of en bloc kyphectomy and using the lag screws. Especially when lag screws are used, several complications including posterior instrumentation failure, hardware prominence and wound break down can be solved by removing the implants after bone fusion has been achieved.
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