• Department of Orthopedics, Anqing Hospital Affiliated to Anhui Medical University, Anqing Anhui, 246003, P.R.China;
JIANG Bing, Email: jiangbing0619@163.com
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Objective To investigate the effectiveness of stand-alone MC+polyether-ether-ketone (PEEK) Cage (single blade type) in anterior cervical double-level fusion for more than 2 years follow-up.Methods  A clinical data of 30 patients who were treated with anterior cervical fusion surgery with stand-alone MC+PEEK Cage (single blade type) between January 2013 and December 2016 and followed up for more than 2 years, was retrospectively analyzed. There were 16 males and 14 females, aged from 34 to 72 years with an average of 52.2 years. There were 16 cases of cervical spondylotic myelopathy, 8 cases of cervical spondylotic myelopathy, and 6 cases of traumatic cervical disc herniation. The continuous double segments were C4, 5, C5, 6 in 12 cases and C5, 6, C6, 7 in 18 cases; and the disease duration ranged from3 days to 24 months (mean, 12 months). Postoperative neck hematoma and wound healing were observed; dysphagia was assessed by Bazaz system; and bone fusion was assessed by Suk method. Before operation, at 1 week after operation, and at last follow-up, the Japanese Orthopaedic Association (JOA) score was used to evaluate the neurological recovery; the cervical X-ray film was performed to record the cervical curvature (C2-C7 Cobb angle), the height of the intervertebral space of the fusion segment, and to judge the occurrence of the fusion Cage subsidence.Results No complication such as neck hematoma, incision infection, or esophageal fistula was found, primary healing of incisions was obtained in all cases. All patients were followed up 24-72 months (mean, 46 months). Neurological symptoms such as limb numbness and pain gradually disappeared after operation; during the follow-up period, the cervical curvature could be effectively maintained; dysphagia and internal fixation related complications such as displacement of Cages were not found. All patients obtained bony fusion from 3 to 8 months with an average time of 4.3 months. Compared with preoperative ones, the JOA score, intervertebral space height, and Cobb angle of cervical spine were significantly improved at 1 week after operation and at last follow-up (P<0.05), but there was no significant difference between 1 week after operation and last follow-up (P>0.05).Conclusion The application of stand-alone MC+PEEK Cage (single card type) in anterior cervical fusion can provide early cervical stability, effectively maintain the physiological curvature of cervical spine and the height of fusion intervertebral space.

Citation: JIANG Bing, TAO Yuefeng, CHEN Haiyun, HUANG Xiaodong. Observation of stand-alone MC+polyether-ether-ketone (PEEK) Cage in anterior cervical double-level fusion for more than 2 years follow-up. Chinese Journal of Reparative and Reconstructive Surgery, 2019, 33(9): 1151-1155. doi: 10.7507/1002-1892.201901036 Copy

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