Improving of artificial hip joint design by studying multiple angles of articulation between femoral head and acetabular liner

Artificial Hip Joints is a complicated field as it is related to material wear rate, biocoMPatibility and stability. While these factors might seem enough, but more factors are affecting implant performance such as hip joint design. This theoretical work is performed by ANSYS 18.2 software to simulate a force of3000 N load applied on a design for a different angle of movement (a) and angle between femoral head and acetabulum (ß), a is taken as (-10°, 0° and +30°) and ß is taken (35°, 45°, 55°, 65° and 75°). The results of Von-Mises stress, total deformation, pressure, gap and penetration was taken from simulation results for femoral head of Alumina and Cobalt-Chrome alloy with HDPE liner to represent the case of Metal on Plastic (MoP) and Ceramic on Plastic (CoP), the results of both cases for a and ß angles is drawn and then coMPared to choose best ß value. The selection of design is utilized by evaluating results and then rating it in a selection matrix, it was found that ß at 65° shows highest rating.