【摘要】 【目的】评价人工颈椎间盘置换对手术节段的即时稳定作用、维持节段的运动功能与初步临床效果。【方法】16例非手术治疗无效的颈椎病[脊髓型、神经根型或(和)混合型]行前路颈椎间盘切除后置入Bryan人工颈椎间盘,按计划进行定期随访(3～12个月,平均7个月),根据手术前后颈椎的影像学资料分析手术节段的稳定性与活动度,并结合病人神经症状和体征的改善情况评价其临床效果。【结果】手术效果:优8例;良4例;一般3例;差1例。手术成功率为93%。手术前平均JOA评分为12分,术后平均为15.5分;植入节段颈椎活动度前曲后伸为10.2°±5.4°,未发现假体松动和移位。【结论】人工颈椎间盘置换术安全可靠,病人恢复快,既可保持手术节段颈椎稳定,又可维持颈椎的生理活动度。更多还原

【Abstract】 [Objective]The studies were designed to determine whether the Bryan disc prosthesis could provide relief from objective neurologic symptoms and signs, improve the patient’s ability to perform activities of daily living, and maintain stability and segmental motion.[Methods]Sixteen Cases(20 discs) with symptomatic cervical radiculopathy and/or myelopathy underwent implantation with the Bryan prosthesis after a standard anterior cervical discectomy.At scheduled follow-up periods, the effectiveness of the device was characterized by evaluating each patient’s pain, neurologic function, and radiographically measured range of motion at the implanted level.[Results]Clinical success rate was 93% that exceeded the study acceptance criteria of 85%.JOA improved from average 12 grades preoperatively to 15.5 postoperatively.At follow-up, the flexion-extension range of motion per level averaged (10.2±5.4) degrees. No devices had been explanted.[Conclusion]Discectomy and implantation of the device alleviate neurologic symptoms and signs similar to anterior cervical discectomy and fusion. Radiographic evidence supports maintenance of motion and lordosis .Bryan cervical disc prosthesis is safe and the patients recover quickly. Longer time of follow-up will be needed to assess the long-term functionality of the prosthesis and protective influence on adjacent levels.更多还原