This study reviewed an over 5-year follow-up results of 21 patients who underwent anterior spinal fusion for cervical degenerative spondylosis between 1989 and 1996. The average patients age was 50.7 years. The mean JOA score improved to 16.0 on the last follow-up from the preoperative score of 13.2. Clinical success was defined according to Hirabayashi’s scale. The average was 73.7%. The latest X-p showed increase of the range of motion (19 out of 21 cases) and degeneration (12 out of 21 cases) in intervertebral disc adjacent to the fused disc. We recommend long term follow-up, because of the risk of cervical disc herniation and the progress of degenerative spondylosis in intervertebral disc adjacent to the fused disk.
