Anterior Cervical Zero-P Implantation for the Treatment of Cervical Spondylosis in Youths

Abstract：Objective To discuss the early follow-up outcome of Zero-P implantation and anterior cervical pltae and cage in treatment of cervical spondylosis in youths. Methods From Feb 2009 to Nov 2012,47 patients underwent Zero-P implanta-tion and anterior cervical plate、cage were included in this study. There were 26 males and 21 females. The age of the patients were 22 to 38 years. These patients were divided into two groups by their wishes and different operation equipment. The data were collected before surgery and at 3 day,3,6,12 and 24 months after surgery. Clinical outcome and neurological function were evaluated by Japan orthopedic association(JOA)score,Visual analogue scale(VAS)and neck disability index(NDI)Post-operative dysphagia associated complication were assessed by the Bazaz dysphagia score system. Results All the patients had a satisfied neurologic improvement. JOA、VAS and NDI scores showed significantly improvement after surgery. There were 11 patients complained of dysphagiain one week after surgery in group B and 1 patient complained in group A. No internal fixation failures or infection were observed during the follow-up period. Conclusion Zero-P implantation,anterior cervical pltae and cage cervical spondylosis in youths have an excellent early clinical outcome in treatment of cervical spondylosis in youths. Zero-P has earned low postoperative dysphagia.