Outcome of Microsurgical Decompression Combined with Cervical Zero-P Implantion

Abstract：Objective To study the clinical effect of microsurgical decompression combined with cervical Zero-P implan-ted for the treatment of cervical spondylosis. Methods From April 2011to December 2013,41 cases of cervical spondylosis, including 52 intervertebral spaces,underwent microscope disc decompression and cervical Zero-P implanted. There were 25 male and 16 female patients;aged from 36 to 71years,with an average of 53. 1 years. There were 25 cases of cervical spondylot-ic myelopathy,9 cases of nerve root type cervical spondylosis and 7 cases of mixedcervical spondylosis. Visual analogue scale (VAS)scores,Japanese 0rthopedic Association(JOA)scores and neck disability index(NDI)scores were recorded and com-pared with preoperative scores by the paired t-test. Results The patients were followed up for 6 to 36 months,with an average of 25. 4 months. During follow up,the patients symptoms were obvious alleviated and had statistically significant improvement as assessed by the JOA scores,NDI scores and VAS scores compared pre-opration(P ﹤ 0. 05). The symptoms of the patients shown tendency to improve at follow-up point post-opration,but there were no statistically significant relationship between each point(P ﹥ 0. 01). Conclusion The cervical Zero-P system implantation combined with microscopic decompression surgery can be effective decompression of nerve tissue.