Abstract
In cement-less artificial hip joint arthroplasty, stress distribution in the femur was evaluated by finite element method. In cement-less type, strong fixation with femur is performed by the bone ingrowth of porous structure. Increasing porous area, stress shielding effect in femur increases. But decreasing porous area, fixation ability of artificial hip joint decreases. Therefore influence of porous structure area/position on stress distribution in the femur was studied, and the optimum design in the cement-less artificial hip joint stem was discussed.
