ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION NUMERIC AND EXPERIMENTAL ANALYSES: INFLUENCE OF TRABECULAR BONE CONSTITUTIVE MODEL

Abstract INTRODUCTION The number of variables that influence the success an ACL reconstruction is such that, use numerical tools becomes increasingly necessary. In this work, a finite element model developed to simulate in its tibial insertion. MATERIAL AND METHODS Tibiae and ligaments porcine samples were used work. As fixation, interference screw with nominal diameter 7mm length 25mm used. plasty which replace injured ligament was characterize using tensile tests. Uniaxial confined compression tests, as well indentation for characterizing trabecular bone. Finite methods implementation simulation, studies effect knee joint all elements involved (plasty, bone screw). RESULTS None models available description behavior (von Mises, Hill Crushable Foam), capable doing it completely proper manner. one or other constitutive does not greatly simulation results. CONCLUSIONS has strongly anisotropic non-symmetric mechanical behavior, none code fully describing it. Thus, von Mises criterion recommended, easiest define requires least resources (lower computational cost).