Computer Aided Engineering (CAE) Techniques Applied to Hip Implant

Abstract

Methods to predict contact stresses in femoral prostheses can provide an improved understanding of load distribution. The objectives of this study is to apply advanced computer aided engineering techniques (CAE) for predicting stress transfer to femur after implantation of standard and short femoral stems (Proxima stem). A perspective threedimensional geometry model for the femoral bone using subject-specific geometry from Xray computed tomography image data (CTI) is used to create 3D CAD model. Forces acting on the femur in different gait regimes were reviewed and compared while loaded with standard and then with Proxima stem. And finally a developed finite element analysis model based on the created CAD model with forces acting on both femurs loaded with standard and Proxima stem is analyzed.