Design and Simulation of Hip Prosthesis using Finite Elements Methods to fulfill Essential Range of Motion

The primary aim of total hip replacement procedure is to relieve joint pain and to reset normal joint function as far as possible. This study aims to design hip implant with optimum combination of dimensions and material with acceptable range of motion ROM. By utilizing of existing computer-aided design (CAD) to generate 3 Dimension model of hip joint. This in order to identify the ideal prosthesis size and position, based on Finite Element and ROM analysis. Further this study providing groundwork for future development of using of design parameters and component positioning for improve the Pre-surgical planning. 3-D hip implant model was designed by using solidworks package, and then finite element analysis was performed. Component parameters included oscillation angle ($\Theta $), cup abduction $\alpha$), cup anterior opening ($\beta $), the angle of the femoral neck component from the horizontal plane (a) and the femoral neck anteversion was used to calculate ROM by using mathematical equations applied on Matlab. Depending on ANSYS and Matlab results model was modified and improved until arrive to acceptable fimal design.