Abstract:

Objective To evaluate the clinical effects of artificial cervical disc replacement in the treatment of cervical spondylotic myelopathy. Methods 20 patients with cervical spondylotic myelopathy underwent Bryan cervical disc arthroplasty from March 2005 to July 2006. The clinical JOA and ODI scores and radiographic results were pre-operatively and post-operatively performed． The range of movement (ROM) of the post-operative replaced level was retrospectively reviewed． Result Neurological deficit was alleviated in all patients． Followed up at least 24 months， JOA and ODI scores were improved, and the replaced segment restored the normal ROM. Also no obvious degeneration or heterotopic ossification of the adjacent disc happened during the follow-up. Conclusion Artificial cervical disc replacement can obviously improve the symptoms of cervical spondylotic myelopathy and achieve good clinical results. Also, the replaced level retains a definite ROM．

Key words: Spinal cord compression； Artificial cervical disc replacement; Prosthesis implantation