NDLI: Factors affecting titanium mesh cage subsidence in single-level anterior cervical corpectomy and fusion for ossification of the posterior longitudinal ligament

Content Provider	Springer Nature : BioMed Central
Author	Tang, Yifan Geng, Xiangwu Li, Fengning Sun, Yanqing Jia, Lianshun Zhou, Shengyuan Chen, Xiongsheng
Abstract	Purpose To analyze risk factors of titanium mesh cage (TMC) subsidence in single-level anterior cervical corpectomy and fusion (ACCF) for cervical ossification of the posterior longitudinal ligament (OPLL). Methods TMC subsidence is defined as the reduction of the adjacent vertebral bodies by ≥ 2 mm. Patients with cervical OPLL who were treated with single-level ACCF between January 2019 and May 2021 were retrospectively analyzed in two groups: patients with TMC subsidence as Group S and patients with no TMC subsidence as Group N during the one-year follow-up period. The degree of distraction of surgical segment and correction of the cervical curvature was measured to analyze their relationship with TMC subsidence. Results A total of 128 patients were included in Group S, and 138 patients were included in Group N. There was no significant difference in patient demographics and complications between the two groups. The degree of distraction in Group S was significantly higher than that in Group N (11.4% ± 7.6% vs. 4.7% ± 9.7%, P < 0.01). The change of C2 to C7 Cobb angle (α) in Group S was significantly greater than that in Group N (5.7 ± 2.7 vs. 1.4 ± 4.7, P < 0.01), and the change of interspinous process distance (SPD) in Group S was also significantly greater than that in Group N (7.0 ± 4.2 vs. 4.1 ± 2.7, P < 0.01). The JOA score and JOA recovery rate were not statistically different between the two groups. Conclusions Intraoperative selection of overlength TMC in single-level ACCF for OPLL, over-distraction and excessive correction of the cervical curvature may cause TMC subsidence after surgery. No significant impact of TMC subsidence on the surgical outcome was observed during the 1-year follow-up period.
Related Links	https://josr-online.biomedcentral.com/counter/pdf/10.1186/s13018-022-03409-6.pdf
Ending Page	6
Page Count	6
Starting Page	1
File Format	HTM / HTML
DOI	10.1186/s13018-022-03409-6
Journal	Journal of Orthopaedic Surgery and Research
Issue Number	1
Volume Number	17
Language	English
Publisher	BioMed Central
Publisher Date	2022-12-01
Access Restriction	Open
Subject Keyword	Orthopedics Surgical Orthopedics Titanium mesh cage subsidence Anterior cervical corpectomy and fusion Ossification of the posterior longitudinal ligament Distraction degree Cervical curvature
Content Type	Text
Resource Type	Article
Subject	Surgery Orthopedics and Sports Medicine
Journal Impact Factor	2.8/2023
5-Year Journal Impact Factor	3/2023

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