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Cervical Vertebral Bone Quality Score Independently Predicts Distal Junctional Kyphosis After Posterior Cervical Fusion

医学 后凸 外科 射线照相术 颈椎 颈椎 脊柱融合术
作者
Alexander O. Aguirre,Mohamed A.R. Soliman,Cathleen C. Kuo,Nicco Ruggiero,Justin Im,Yaswanth Chintaluru,Ali M A Khan,Asham Khan,Ryan M. Hess,Kyungduk Rho,David E. Smolar,Jeffrey P. Mullin,John Pollina
出处
期刊:Neurosurgery [Oxford University Press]
卷期号:94 (3): 461-469 被引量:1
标识
DOI:10.1227/neu.0000000000002714
摘要

Posterior cervical fusion is the surgery of choice when fusing long segments of the cervical spine. However, because of the limited presence of this pathology, there is a paucity of data in the literature about the postoperative complications of distal junctional kyphosis (DJK). We aimed to identify and report potential associations between the preoperative cervical vertebral bone quality (C-VBQ) score and the occurrence of DJK after posterior cervical fusion.The authors retrospectively reviewed records of patients who underwent posterior cervical fusion at a single hospital between June 1, 2010, and May 31, 2020. Patient data were screened to include patients who were >18 years old, had baseline MRI, had baseline standing cervical X-ray, had immediate postoperative standing cervical X-ray, and had clinical and radiographic follow-ups of >1 year, including a standing cervical X-ray at least 1 year postoperatively. Univariate analysis was completed between DJK and non-DJK groups, with multivariate regression completed for relevant clinical variables. Simple linear regression was completed to analyze correlation between the C-VBQ score and total degrees of kyphosis angle change.Ninety-three patients were identified, of whom 19 (20.4%) had DJK and 74 (79.6%) did not. The DJK group had a significantly higher C-VBQ score than the non-DJK group (2.97 ± 0.40 vs 2.26 ± 0.46; P < .001). A significant, positive correlation was found between the C-VBQ score and the total degrees of kyphosis angle change (r 2 = 0.26; P < .001). On multivariate analysis, the C-VBQ score independently predicted DJK (odds ratio, 1.46; 95% CI, 1.27-1.67; P < .001).We found that the C-VBQ score was an independent predictive factor of DJK after posterior cervical fusion.
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