• Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China;
ZENG Jiancheng, Email: tomzeng5@163.com
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Objective To summarize the advances in research on Cage subsidence following lumbar interbody fusion, and provide reference for its prevention.Methods The definition, development, clinical significance, and related risk factors of Cage subsidence following lumbar interbody fusion were throughout reviewed by referring to relevant domestic and doreign literature in recent years.Results At present, there is no consensus on the definition of Cage subsidence, and mostly accepted as the disk height reduction greater than 2 mm. Cage subsidence mainly occurs in the early postoperative stage, which weakens the radiological surgical outcome, and may further damage the effectiveness or even lead to surgical failure. Cage subsidence is closely related to the Cage size and its placement location, intraoperative endplate preparation, morphological matching of disk space to Cage, bone mineral density, body mass index, and so on.Conclusion The appropriate size and shape of the Cage usage, the posterolateral Cage placed, the gentle endplate operation to prevent injury, the active perioperative anti-osteoporosis treatment, and the education of patients to control body weight may help to prevent Cage subsidence and ensure good surgical results.

Citation: ZHAO Long, ZENG Jiancheng, XIE Tianhang, PU Xingxiao, LU Yufei. Advances in research on Cage subsidence following lumbar interbody fusion. Chinese Journal of Reparative and Reconstructive Surgery, 2021, 35(8): 1063-1067. doi: 10.7507/1002-1892.202104036 Copy

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