Design Optimization of Hip Resurfacing Prosthesis Using Finite Element Analysis

Hip resurfacing is an alternative to total hip arthroplasty for the young and active patient likely to outlive traditional means of hip joint replacement. To optimize design on the hip resurfacing prosthetic stress profile in the proximal femur after hip resurfacing. The acetabular cup is implanted in much the same fashion as an uncemented total hip arthroplasty, however, implantation of the femoral component is unique to hip resurfacing, presenting both distinct benefits and limitations The von Mises stress profile (a combination of compressive, tensile, and shear stresses) of the native femur had simulated and compared with resurfaced femurs using various prosthetic materials, stem lengths with different sizes, and femoral head coverage [240o, 200o, and 180o]. Redesign of the Hip resurfacing acetabular cup by providing notch type and groove extruded models. Maximal cortical stresses to be observed at the posterior half of the medial femoral neck.