A strain energy criterion for trabecular bone adaptation

摘要

In this paper, combined with FE method and optimization theory, a strain energy criterion is used to simulate and predict the bone remodeling. The strain energy density is taken as the mechanical stimulus. The bone remodeling is described as changing of the material distribution, which can represent the process of bone remodeling. Though remodeling simulation of a two-dimensional proximal femur, a three-dimensional proximal femur and bone fracture healing plastic process, we demonstrate that (1) this criterion produced a realistic apparent density distribution in the proximal femur. (2) this criterion can illuminate the mechanism of bone fracture healing plastic process well. So Wloff law was proved that the bone altered both its apparent density and trabecular orientation in response to mechanical loads.