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旋转平台膝关节置换:综述与更新。

Rotating-platform knee arthroplasty: a review and update.

机构信息

Department of Orthopaedic Surgery, The Third Hospital of Wenling City, Wenling, China.

出版信息

Orthop Surg. 2011 Nov;3(4):224-8. doi: 10.1111/j.1757-7861.2011.00156.x.

Abstract

Fixed versus rotating-platform knee arthroplasty for total knee arthroplasty is still a controversial topic. In this article, biomechanical and clinical aspects of rotating-platform knee arthroplasty are reviewed. In regard to its biomechanical characteristics, the rotating-platform knee arthroplasty design has been proved to provide less tibiofemoral contact stress under conditions of tibiofemoral malalignment. It also reduces the wear rate. However, in regard to its clinical characteristics, the mid-term and long-term survivorship of rotating-platform knee arthroplasties is not superior to that of fixed-platform knees. It appears that we are at a crossroads. In this article, progress in biomechanical and clinical aspects of rotating-platform knee prosthesis is reviewed.

摘要

固定平台与旋转平台膝关节置换在全膝关节置换中仍存在争议。本文就旋转平台膝关节置换的生物力学和临床方面进行综述。从生物力学特点来看,旋转平台膝关节置换设计在胫骨股骨对线不良的情况下可减少胫股关节接触压力,降低磨损率。但从临床特点来看,旋转平台膝关节置换的中期和长期生存率并不优于固定平台膝关节。我们似乎正处于一个十字路口。本文就旋转平台膝关节假体的生物力学和临床进展进行综述。

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Mobile-bearing knees reduce rotational asymmetric wear.活动平台膝关节可减少旋转不对称磨损。
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