Predicting post-laminoplasty kyphosis in cervical spondylotic myelopathy patients without preoperative kyphosis: a retrospective study
Abstract Background This study aimed to determine potential risk factors for post-laminoplasty kyphosis and the effect of postoperative kyphosis on neurologic function recovery. Methods A total of 266 patients with cervical spondylotic myelopathy (CSM) underwent traditional cervical laminoplasty wit...
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| Format: | Article |
| Language: | English |
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BMC
2023-06-01
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| Series: | BMC Musculoskeletal Disorders |
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| Online Access: | https://doi.org/10.1186/s12891-023-06650-0 |
| _version_ | 1797790020640178176 |
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| author | Yiyuan Yang Ruomu Qu Zexiang Liu Zhuo Chen Yunxia Wu Hongling Chu Zhongjun Liu Xiaoguang Liu Liang Jiang |
| author_facet | Yiyuan Yang Ruomu Qu Zexiang Liu Zhuo Chen Yunxia Wu Hongling Chu Zhongjun Liu Xiaoguang Liu Liang Jiang |
| author_sort | Yiyuan Yang |
| collection | DOAJ |
| description | Abstract Background This study aimed to determine potential risk factors for post-laminoplasty kyphosis and the effect of postoperative kyphosis on neurologic function recovery. Methods A total of 266 patients with cervical spondylotic myelopathy (CSM) underwent traditional cervical laminoplasty with a minimum of a 12-month follow-up period. The patients were divided into non-kyphosis (NK group) and kyphosis (K group) groups based on the postoperative C2-7 Cobb angle. Clinical and radiological measurements were collected preoperatively and at the final follow-up. Results Of the 266 patients, 26 (9.77%) developed postoperative kyphosis at the final follow-up. The postoperative Japanese Orthopedic Association score did not differ significantly between the NK and K groups (P > 0.05). The postoperative numeric rating scale (NRS) also showed no significant difference between the NK and K groups; however, postoperative NRS improved better than the preoperative values in the NK group (P < 0.001). Multivariate analysis revealed that the preoperative C2-7 extension Cobb angle and C2-7 Cobb angle were independent predictors of post-laminoplasty kyphosis. Cut-off values for predicting postoperative kyphosis were a C2-7 extension Cobb angle of 18.00° and a C2-7 Cobb angle of 9.30°. Conclusions Low preoperative C2-7 extension Cobb angle and C2-7 Cobb angle may be associated with post-laminoplasty kyphosis in CSM patients without preoperative kyphosis. The cut-off value of the C2-7 extension Cobb angle and C2-7 Cobb angle were 18.00° and 9.30°, respectively. |
| first_indexed | 2024-03-13T01:58:49Z |
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| id | doaj.art-e3dc6541675e41459b6650456096b4da |
| institution | Directory Open Access Journal |
| issn | 1471-2474 |
| language | English |
| last_indexed | 2024-03-13T01:58:49Z |
| publishDate | 2023-06-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Musculoskeletal Disorders |
| spelling | doaj.art-e3dc6541675e41459b6650456096b4da2023-07-02T11:03:49ZengBMCBMC Musculoskeletal Disorders1471-24742023-06-012411710.1186/s12891-023-06650-0Predicting post-laminoplasty kyphosis in cervical spondylotic myelopathy patients without preoperative kyphosis: a retrospective studyYiyuan Yang0Ruomu Qu1Zexiang Liu2Zhuo Chen3Yunxia Wu4Hongling Chu5Zhongjun Liu6Xiaoguang Liu7Liang Jiang8Department of Orthopaedics, Peking University Third HospitalDepartment of Orthopaedics, Peking University Third HospitalDepartment of Orthopaedics, Peking University Third HospitalDepartment of Orthopaedics, Peking University Third HospitalDepartment of Orthopaedics, Peking University Third HospitalResearch Center of Clinical Epidemiology, Peking University Third HospitalDepartment of Orthopaedics, Peking University Third HospitalDepartment of Orthopaedics, Peking University Third HospitalDepartment of Orthopaedics, Peking University Third HospitalAbstract Background This study aimed to determine potential risk factors for post-laminoplasty kyphosis and the effect of postoperative kyphosis on neurologic function recovery. Methods A total of 266 patients with cervical spondylotic myelopathy (CSM) underwent traditional cervical laminoplasty with a minimum of a 12-month follow-up period. The patients were divided into non-kyphosis (NK group) and kyphosis (K group) groups based on the postoperative C2-7 Cobb angle. Clinical and radiological measurements were collected preoperatively and at the final follow-up. Results Of the 266 patients, 26 (9.77%) developed postoperative kyphosis at the final follow-up. The postoperative Japanese Orthopedic Association score did not differ significantly between the NK and K groups (P > 0.05). The postoperative numeric rating scale (NRS) also showed no significant difference between the NK and K groups; however, postoperative NRS improved better than the preoperative values in the NK group (P < 0.001). Multivariate analysis revealed that the preoperative C2-7 extension Cobb angle and C2-7 Cobb angle were independent predictors of post-laminoplasty kyphosis. Cut-off values for predicting postoperative kyphosis were a C2-7 extension Cobb angle of 18.00° and a C2-7 Cobb angle of 9.30°. Conclusions Low preoperative C2-7 extension Cobb angle and C2-7 Cobb angle may be associated with post-laminoplasty kyphosis in CSM patients without preoperative kyphosis. The cut-off value of the C2-7 extension Cobb angle and C2-7 Cobb angle were 18.00° and 9.30°, respectively.https://doi.org/10.1186/s12891-023-06650-0Cervical spondylotic myelopathyLaminoplastyPostoperative kyphosisC2-7 extension Cobb angleC2-7 Cobb anglePredictor |
| spellingShingle | Yiyuan Yang Ruomu Qu Zexiang Liu Zhuo Chen Yunxia Wu Hongling Chu Zhongjun Liu Xiaoguang Liu Liang Jiang Predicting post-laminoplasty kyphosis in cervical spondylotic myelopathy patients without preoperative kyphosis: a retrospective study BMC Musculoskeletal Disorders Cervical spondylotic myelopathy Laminoplasty Postoperative kyphosis C2-7 extension Cobb angle C2-7 Cobb angle Predictor |
| title | Predicting post-laminoplasty kyphosis in cervical spondylotic myelopathy patients without preoperative kyphosis: a retrospective study |
| title_full | Predicting post-laminoplasty kyphosis in cervical spondylotic myelopathy patients without preoperative kyphosis: a retrospective study |
| title_fullStr | Predicting post-laminoplasty kyphosis in cervical spondylotic myelopathy patients without preoperative kyphosis: a retrospective study |
| title_full_unstemmed | Predicting post-laminoplasty kyphosis in cervical spondylotic myelopathy patients without preoperative kyphosis: a retrospective study |
| title_short | Predicting post-laminoplasty kyphosis in cervical spondylotic myelopathy patients without preoperative kyphosis: a retrospective study |
| title_sort | predicting post laminoplasty kyphosis in cervical spondylotic myelopathy patients without preoperative kyphosis a retrospective study |
| topic | Cervical spondylotic myelopathy Laminoplasty Postoperative kyphosis C2-7 extension Cobb angle C2-7 Cobb angle Predictor |
| url | https://doi.org/10.1186/s12891-023-06650-0 |
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