半限制型与非限制型假体在颈椎间盘置换中的应用

背景：人工椎间盘置换(非融合技术)是相对传统的颈椎前路减压椎体间植骨融合基础上设计的新术式，非融合技术的运用是一种新的理念。目的：比较半限制型与非限制型假体在人工颈椎间盘置换中的应用效果。方法：回顾性分析22例人工颈椎间盘置换患者的临床资料，非限制型假体Bryan 2例；半限制型假体Prodisc-C 15例，Activ-C 5例。通过比较手术时间、出血量、置换后颈椎活动度来比较颈椎间盘假体的置换效果。结果与结论：Bryan假体具备置换后颈椎活动度好的优点，但价格昂贵，安装较为复杂。而Prodisc-C假体与Activ-C假体安装容易，但相对Bryan假体置换后颈椎活动度稍差。提示颈椎间盘置换在颈椎病的治疗上是一种行之有效的方法，非限制型及半限制型假体均取得了良好的临床效果，但半限制型假体Prodisc-C及Activ-C安装较为方便。

Application of semi-constrained and non-restrictive prostheses in cervical disc replacement

BACKGROUND: The artificial disc replacement (non-fusion technology) is a new surgical procedure based on traditional anterior cervical decompression and interbody fusion, and the use of non-fusion technology is a new concept.OBJECTIVE: To compare the clinic results between semi-constrained and non-restrictive prostheses used in cervical disc replacement.METHODS: A retrospective analysis was performed in 22 patients who received cervical artificial disc replacement. Two cases were replaced with non-restrictive prosthesis of Bryan, 15 cases were with semi-constrained prosthesis of Prodisc-C, and 5 cases were replaced with semi-constrained prosthesis of Activ-C. Comparisons of the operation time, bleeding and the active degree of cervical vertebrate after operation were performed in order to compare the displacement effects.RESULTS AND CONCLUSION: Replacement with Bryan prosthesis had better active degree of cervical vertebrate after operation, but it cost longer operation time and its installation was more complicated. Installation of Prodisc-C and Activ-C was simple, but patients with these prostheses replacement had poor active degree of cervical vertebrate after operation. It is indicated that cervical disc replacement is effective in treatment of cervical spondylosis. Both semi-constrained and non-restrictive prostheses used in cervical disc replacement can lead to satisfied clinic results, and installation of Prodisc-C and Activ-C is simpler.