An in vitro study of knee kinematics: native versus bi-compartmental, PCL retaining and posterior stabilized implants

摘要

Objectives: Reproducing normal knee kinematics is an important goal of knee arthroplasty. Knee replacements that keep the cruciate ligaments intact should perform better in this respect than PCL retaining (CR) and posterior stabilized (PS) knee implants. However, this hypothesis has not been confirmed before. In this study, we evaluated and compared passive and loaded kinematics of human knee joints before and after consecutive replacement with bi-compartmental, CR and PS implants.