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- Title
Predictors of cervical lordosis loss after laminoplasty in patients with cervical spondylotic myelopathy.
- Authors
Zhang, Jing; Li, Jia; Niu, Rui; Liu, Zhao; Tong, Tong; Shen, Yong; Zhang, Jing Tao; Li, Jia Qi; Niu, Rui Jie
- Abstract
<bold>Purpose: </bold>To determine whether radiological, clinical, and demographic findings in patients with cervical spondylotic myelopathy (CSM) were independently associated with loss of cervical lordosis (LCL) after laminoplasty.<bold>Methods: </bold>The prospective study included 41 consecutive patients who underwent laminoplasty for CSM. The difference in C2-7 Cobb angle between the postoperative and preoperative films was used to evaluate change in cervical alignment. Age, sex, body mass index (BMI), smoking history, preoperative C2-7 Cobb angle, T1 slope, C2-7 range of motion (C2-7 ROM), C2-7 sagittal vertical axis (C2-7 SVA), and cephalad vertebral level undergoing laminoplasty (CVLL) were assessed. Data were analyzed using Pearson and Spearman correlation test, and univariate and stepwise multivariate linear regression.<bold>Results: </bold>T1 slope, C2-7 SVA, and CVLL significantly correlated with LCL (P < 0.001), whereas age, BMI, and preoperative C2-7 Cobb angle did not. In multiple linear regression analysis, higher T1 slope (B = 0.351, P = 0.037), greater C2-7 SVA (B = 0.393, P < 0.001), and starting laminoplasty at C4 level (B = - 7.038, P < 0.001) were significantly associated with higher postoperative LCL.<bold>Conclusions: </bold>Cervical alignment was compromised after laminoplasty in patients with CSM, and the degree of LCL was associated with preoperative T1 slope, C2-7 SVA, and CVLL.
- Subjects
LORDOSIS; CERVICAL spondylotic myelopathy; SPINAL surgery; RANGE of motion of joints; BODY mass index; THERAPEUTICS; CERVICAL vertebrae; LAMINECTOMY; LONGITUDINAL method; SPINAL cord diseases; SPONDYLOSIS; SURGERY
- Publication
European Spine Journal, 2017, Vol 26, Issue 4, p1205
- ISSN
0940-6719
- Publication type
journal article
- DOI
10.1007/s00586-017-4971-4