全膝关节置换术中度屈曲不稳定的影响因素

随着人口老龄化的到来,全膝关节置换例数逐年上升。目前两种学派使用的假体后交叉保留型(CR)和后方稳定型(PS),国内学者更倾向于PS。近年来翻修病例越来越多,不稳定逐步取代感染成为早期翻修的主要原因。中度屈曲的稳定性对于行走功能非常重要,因此得到业内广泛关注。现在任何一种假体和手术技术都无法彻底解决中度屈曲不稳。本文分析了CR和PS术后中度屈曲稳定性的差异,旨在给关节科同道提供理论依据和发展方向。

The influence factors of midflexion instability in total knee arthroplasty

With the arrival of aging population, the number of total knee arthroplasty(TKA) is increasing year by year. There are two types of prosthesis: posterior cruciate-retaining (CR) and posterior stabilizing (PS), and domestic scholars prefer PS. More and more revision TKA in recent years, and instability gradually replaced infection as the main cause of early revision. The stability of midflexion is very important for walking function, so it is widely concerned in the industry of joint. None of the prostheses and surgical techniques can address midflexion instability. This paper analyzes the difference of midflexion stability after CR-TKA and PS-TKA. The aim is to provide theoretical basis and development direction for joint surgeon.