Kinematic comparison between the knee after bicruciate stabilized total knee arthroplasty and the native knee: A cadaveric study.

Yasuaki Tamaki, Daisuke Hamada, K. Wada, Tomoya Takasago, Akihiro Nitta, Yasuyuki Omichi, T. Goto, Yoshihiro Tsuruo, K. Sairyo
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引用次数: 1

Abstract

BACKGROUND Although bicruciate stabilized total knee arthroplasty (BCS-TKA) is expected to provide kinematics similar to those of the normal knee, there are limited data available for comparison of the kinematics of the knee after BCS-TKA with those of the normal knee. The purpose of this study was to confirm whether the knee after BCS-TKA are the same as those of the native knee. METHODS Seven fresh-frozen cadavers underwent TKA using a BCS-type prosthesis with navigation system. Anteroposterior translation of the femur and internal rotation of the tibia were evaluated using the navigation system. RESULTS There was no statistically significant difference in anteroposterior translation of the femur between the native knee and the knee after BCS-TKA in the early flexion phase (0°-30°) or in the deep flexion phase (over 100°). In the middle flexion phase (40°-90°), the knee after BCS-TKA was placed significantly more anteriorly than the native knee. The knee after BCS-TKA also showed a gradual internal rotation pattern similar to that of the native knee but the total tibial internal rotation angle was significantly smaller than that of the native knee. At each angle from 0° to 120° of flexion, internal rotation of the knee after BCS-TKA was significantly greater than that of the native knee. CONCLUSION Kinematics of BCS-TKA is close to that of the native knee. However, there is a statistically significant difference in AP position of the femur during mid flexion and initial rotational position of the tibia between the BCS-TKA knee and the native knee.
双交叉稳定全膝关节置换术后膝关节与天然膝关节的运动学比较:一项尸体研究。
背景:虽然双十字稳定全膝关节置换术(BCS-TKA)有望提供与正常膝关节相似的运动学,但BCS-TKA后膝关节与正常膝关节的运动学比较数据有限。本研究的目的是确认BCS-TKA后的膝关节是否与正常膝关节相同。方法对7具新鲜冷冻尸体采用bcs型带导航系统的假体进行全膝关节置换术。使用导航系统评估股骨的前后平移和胫骨的内旋。结果在早期屈曲期(0°-30°)和深度屈曲期(超过100°),BCS-TKA术后膝关节与原膝关节的股骨前后移位无统计学差异。在屈曲中期(40°-90°),BCS-TKA后的膝关节明显比原膝关节更前倾。BCS-TKA后的膝关节也表现出与正常膝关节相似的逐渐内旋模式,但胫骨总内旋角度明显小于正常膝关节。在0°~ 120°屈曲角度内,BCS-TKA术后膝关节内旋明显大于正常膝关节内旋。结论BCS-TKA的运动学与正常膝关节接近。然而,在BCS-TKA膝关节与原生膝关节之间,股骨中屈曲时的AP位置和胫骨初始旋转位置存在统计学差异。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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