On the optimization of the hip stem for an electrostimulative hip revision system

摘要

Since the 1980s electrostimulative systems are used to improve bone regeneration. This concept is now being implemented in a total hip revision system to accelerate bone regeneration after surgery. In prior works, an electrostimulative acetabular cup has been introduced and optimized. Nevertheless, the stimulation- and thus the optimization concept for the acetabular cup cannot be applied to the femoral part in the thigh bone. Therefore, this paper presents a computational model of the electrostimulative hip stem as well as an approach to optimize the field distribution in close proximity to the femoral bone.