A Novel Phenomenological Ligament Modeling Approach Utilizing Robotic Calibration

While total knee arthroplasty (TKA) is a successful procedure to mitigate joint pain, there remain improvement opportunities with respect to restoring natural joint feeling and function [1]. It has been shown that prosthesis geometry and the retention of ligaments can have an influence on patient perception of how normal a TKA feels [2]. Numerical knee modeling offers the possibility to improve outcomes of feel and function by comparing the predicted behavior of TKAs using various designs and surgical variables with the behavior of intact knees. The TKA development process also benefits as these analyses and resulting optimizations can be performed in an early design stage.