Computational study on lateral and medial wear characterization in knee implants by a multibody dynamic system

Abstract Wear is one of the main mechanical factors that limits survival total knee replacements (TKRs) and it known to be highly dependent on local kinematics joint. In this study, an analytical wear model was coupled a multibody dynamic obtain distribution at lateral medial contact plateaus different TKRs. The major aim analyze if can indicator elevated tibiofemoral misalignment which lead rapid TKR failure. For simulations, commercial prototype geometries were used, with augmented Archard’s law. Squat movement chosen due its importance both in sports everyday life. As conclusion, new parameter, denoted as imbalance, introduced, indicate whether TKR, geometrical features, prone subjected