Bone density growth and the biomechanics of healthy and prosthetic femur

摘要: The development of computational models to describe bone behavior when prosthetic devices are used has gained tremendous importance. In particular, modeling for growth and resorption processes can be a useful tool determine the implant success or failure. We present model investigating density healthy femur with total hip arthroplasty. model, which is based on continuum theory remodeling in biological materials that accounts coupling between mechanical effects, implemented COMSOL Multiphysics two simulation examples presented. first example, where loads due daily physical activities considered, it shown higher stress zones (in mid-diaphysis about 46 MPa) lower neck 28 candidates zones, respectively. addition, levels these may lead possible periprosthetic fractures (bone overloaded 7–10 MPa post-operatively) eventually aseptic loosening femoral unloaded 13–17 post-operatively). second load corresponds average considered previously, obtained results good agreement real distribution proximal femur, illustrates capability locate (of 1615 $$\mathrm {kg/{m}^{3}}$$ mid-diaphysis) 1259 neck) post-operative condition after arthroplasty surgical procedure.