The internal bone adaptation of the proximal femur is considered.
A three-dimensional finite element model of the proximal femur is
used. The bone remodeling in this work is numerically described
byan evolutionary remodeling scheme with anisotropic material
parameters andtime-dependent loading. The memory of past loadings
is included in themodel to account for the delay in the bone
response from the loadchanges. The remodeling rate equation is
derived from the structuraloptimization task of maximizing the
stiffness in each time step. Additional informationscan be
extracted from the optimization process; the remodelingequilibrium
parameter where no apposition or resorption takes place is defined
asthe element optimality conditions and the optimal design is used
as aninitial design for the onset ofthe remodeling simulation.
Some examples of boneadaptation resulting from load changes is
|Publication status||Published - 1998|