Different loads can produce similar bone density distributions

摘要: Finite element models of a generic long bone and the proximal femur were used to identify important load characteristics determine whether small changes in affect adaptation simulations. We also examined effect implants on sensitivity simulations loads. For each model, primary set was selected incorporated simulation generate density distribution. A density-based estimation method secondary loading conditions for model. Each resulting distribution compared corresponding Nearly identical distributions produced natural model (average nodal difference 0.02 g/cm3). very similar, but differences apparent 0.07 The same sets with implant models. slightly less than those amplified between 0.14 Thus, variations may partially explain long-term total joint outcome. equivalent stimulus magnitudes two within 1 %, stimulus-weighted average directions 1°. similarity these parameters indicate that overall magnitude direction are key factors affecting adaptation.