BACKGROUND: The artificial disc replacement (non-fusion technology) is a new surgical procedure based on traditional anteriorcervical 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 discreplacement.METHODS: A retrospective analysis was performed in 22 patients who received cervical artificial disc replacement. Two caseswere replaced with non-restrictive prosthesis of Bryan,15 cases were with semi-constrained prosthesis of Prodisc-C, and 5 caseswere replaced with semi-constrained prosthesis of Activ-C. Comparisons of the operation time, bleeding and the active degree ofcervical 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 afteroperation, but it cost longer operation time and its installation was more complicated. Installation of Prodisc-C and Activ-C wassimple, but patients with these prostheses replacement had poor active degree of cervical vertebrate after operation. It isindicated that cervical disc replacement is effective in treatment of cervical spondylosis. Both semi-constrained andnon-restrictive prostheses used in cervical disc replacement can lead to satisfied clinic results, and installation of Prodisc-C andActiv-C is simpler.%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.
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