Model-based Identification Of VariableResponse Of Anterior Cruciate Ligament:Effects Of Knee Flexion, Valgus-varusRotation And Stretching Direction

Abstract

The anterior cruciate ligament is a frequently ruptured knee ligament. The past attentions of ligament mechanics have been mainly paid for the properties as the entire ligament or subunit, although its mechanical response is not uniform. This study employs the computational biomechanics approach to investigate the variable response of the anterior cruciate ligament. The ligament-bone unit is modeled as the collection of the tissue fascicles of various lengths. Then, the model-based identification is extensively used to probe the effect of the knee flexion, the valgus-varus rotation and the stretching direction on the variable response of the ligament.