Clinical study of single-level artificial cervical disc replacement for cervical spondylosis

Objective To investigate the curative effect of single-level artifical cervical disc arthroplasty. Methods Thirty-two patients with cervical spondylosis were treated with single-level artifical cervical disc replacement, At 6 weeks, 3, 6, 12 and 18 months after operation, the patients were followed up. The radiography of forward flexion, backward extension, and left and right lateral flexion were obtained atevery follow-up time. The stability of prosthesis, the range of motion status atoperated levelin Active C group were observed. Meanwhile, investigate all patients with complications by follow-up score. Results The incidence rates of early postoperative dysphagia,cervicodynia,brachialgia in the operation group decreased obviously(P＜0.05).There was no significant difference in the motion range of adjancent segments before and after Active C replacement(P>0.05). Conclusions Single segment cervial artificial disc replacement can reduce complications in early stage. The adjacent segments postoperative is avoided in mid-term. Key words: Cervical spondylosis;  Artificial cervical disc;  Replacement