人工颈椎间盘置入治疗脊髓型颈椎病

目的探讨颈椎人工椎间盘置人对脊髓型颈椎病的治疗效果。方法对颈椎人工椎间盘置入的21例（脊髓型颈椎病17例、神经根型颈椎病2例、急性颈椎间盘突出导致神经根或脊髓损害2例）实施前路减压、Bryan人工椎间盘置人。单间隙病变18例，双间隙病变3例。结果21例随访4—12个月，术前JOA评分由平均8．5分升至术后平均15．5分，影像学均未见假体移位、下沉，生理弧度良好，术后维持满意的颈椎活动度。结论Bryan人工椎间盘系统置换对于1—2个节段的脊髓型颈椎病，在充分解除神经压迫的同时可重建脊柱运动功能，近期疗效满意。

Clinical outcome of cervical disc replacement in the treatment of cervical spondylotic myelopathy

Objective To study the effect of cervical disc replacement in the treatment of cervical spondylotic myelopathy(CSM).Methods 21 patients with CSM(17 cases of spondylotic myelopathy,2 cases of radiculopathy and 2 cases of acute soft disc herniation)were treated by anterior decompression and replaced by the Bryan cervical disc prosthesis. Results All cases were: followed for 4～12 months, average 8 months. The pre-operative JOA score was 8.5 and post-operative score was 15.5 on average. There were no prosthesis, curve was good. Replaced segment achieved stability and restored partial of normal ROM. There was no subsidence of implant and no worsening of pre-operative symptoms, post-operative 21 cases remained flexion/extension movement at replaced segments at latest follow up. There was no neck stiffness and restriction of movement complained by the patients. Conclusion The Bryan cervical disc replacement for the treatment of CSM has offered an excellent early clinical outcome.