The Influence Of Component Alignment On The Life Of Total Knee Prostheses

D. Bugariu, L. Bereteu
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Abstract

Abstract An arthritic knee affects the patient’s life by causing pain and limiting movement. If the cartilage and the bone surfaces are severely affected, the natural joint is replaced with an artificial joint. The procedure is called total knee arthroplasty (TKA). Lately, the numbers of implanted total knee prostheses grow steadily. An important factor in TKA is the perfect alignment of the total knee prosthesis (TKP) components. Component misalignment can lead to the prosthesis loss by producing wear particles. The paper proposes a study on mechanical behaviors of a TKP based on numerical analysis, using ANSYS software. The numerical analysis is based on both the normal and the changed angle of the components alignment.
部件对齐对全膝关节假体寿命的影响
膝关节关节炎通过引起疼痛和限制活动来影响患者的生活。如果软骨和骨表面受到严重影响,则用人工关节代替天然关节。该手术称为全膝关节置换术(TKA)。近年来,植入式全膝关节假体的数量稳步增长。全膝关节置换术的一个重要因素是全膝关节假体(TKP)部件的完美对齐。部件错位会产生磨损颗粒,从而导致假体的损失。本文利用ANSYS软件,基于数值分析的方法,研究了TKP的力学行为。数值分析是基于法线和组件对准角度的变化。
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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