关键词: 颈椎病, 椎管扩大椎板成形术, 微型钛板

Abstract: 【Abstract】〓Objective〓To evaluate the clinical effect of single open-door cervical expansive laminoplasty (ELP) in treatment of cervical spondylosis. Methods〓From January 2008 to February 2012, a total of 46 patients with multi-segment cervical spondylotic myelopathy (MCSM) were implemented open-door cervical expansive laminoplasty with titanium miniplate fixation. The preoperative and postoperative JOA scores, cervical C5 segmental sagittal diameter in preoperation and 6 months after operation were evaluated,and the expansion rate of spinal canal was measured [(postoperative sagittal diameter-preoperative sagittal diameter)/(preoperative sagittal diameter)×100%]. Results〓The mean follow-up was 18 months (6 to 24 months). The average pre-OP JOA score was 8.2 and post-OP JOA score was 14.8. The mean sagittal diameter of C5 spinal canal was 8.6±1.1mm before operation and 16.1±0.9mm at 6 months after operation,with the expansion rate of 74.3±14.4%. CT scan showed bony fusion at hinge side at 6 months after operation. There was no case of screw loosening and reclosed door. Conclusion〓Modified single open-door cervical expansive laminoplasty with titanium miniplate fixation would obtain satisfactory clinical effect, it is able to reduce the probability of reclosed door.

Key words: Cervical spondylosis, Expansive laminoplasty, Titanium miniplate