关键词: 颈椎, 脊柱融合术, 吞咽障碍

Abstract: 【Abstract】〓Objective〓To compare the difference of operation time, blood loss, incidence of dysphagia,.outcome and incidence of internal fixation failure between Zero-p anterior cervical intervertebral fusion system and locking plate combines with cage for cervical spondylosis. Methods Forty-nine patients with single-level cervical spondylosis admitted in our hospital from 2012 to 2014 were included in the study and a retrospective clinical data were analyzed. Of 49 cases, 23 were treated by using Zero-p anterior cervical intervertebral fusion system (A group), 26 cases received surgical procedure with locking plate combined with intervertebral fusion device (B group). The operation time, blood loss, dysphagia, internal fixation failure were compared between two groups. Incidence of dysphagia, the incidence of internal fixation failure were assessed according to Bazaz dysphagia degree and Japan orthopedic association (JOA) score and X-ray. Results〓All patients were operated successfully and followed up. The average follow-up time was 23.5 months (range, 13-39 months). In A group, the mean operative time was 58±23 min and intraoperative blood loss was 53±25 ml. The Incidence of dysphagia was 26.09%, 8.70%, 0, 0 and 0 in 1, 3, 6, 12 month after operation and the last-time follow-up, respectively. JOA score of A group was 9.18±3.06 preoperatively, which rise up to 15.78±3.21 in 12 months after operation and the improvement rate was 57.15%±29.67%, and no internal fixation failure was found. In team B, the mean operative time was 74±28 min and intraoperative blood loss was 57±19 ml. The Incidence of dysphagia was 46.15%, 26.92%, 11.54%, 3.85% and 0 postoperative at 1 week, 3, 6, 12 months and the last time follow-up, respectively. JOA score was 9.03±3.14 preoperatively, which rise up to 15.34±3.09 after 12 months, and the improvement rate was 58.74%±31.53%. Also there wasn’t any internal fixation failure during follow-up. No significant differences between two groups were found in operation time and incidence of dysphagia in 6 months postoperatively. Conclusion〓Both Zero-p anterior cervical intervertebral fusion system and locking plate combined with cage showed a good clinical effect on cervical spondylosis, while Zero-p anterior cervical intervertebral fusion system had shorter operation time and lower incidence of dysphagia.

Key words: Cervical vertebrae, Spinal fusion, Deglutition diorders