Structural Analysis of the Pelvic Girdle before and аfter Hip Replacement Procedure

Abstract

The paper presents results of a preliminary study on a structural analysis of the pelvic girdle, comparing results for the analysis performed before and after the hip replacement procedure with taking into account changes in the mechanical properties of the articular cartilage of the joint. Basic anatomy and biomechanics of the hip joint is introduced. The mechanical analysis of the hip joint model is conducted in each case. Final results of the analysis are presented. The numerical model of the tested objects has been made on the basis of CT and CAD modeling. Hip bone models have been made using specialist software such as Materialise Mimics. The model made in the program has been exported to a data exchange file in order to obtain the editable CAD files. Thus the obtained models have become a starting point for implementation of the numerical model of personalized hip replacement. Numerical models of bone and implant have been performed in Solidworks environment. Mechanical analysis has been carried out while using a finite element analysis. During performing calculations with the help of the finite element analysis other physical quantities such as loads, tensions, restraints or other examples representted in the system while using continuous function have also been discretized. While performing the process of discretization software has been aimed at maximally approximation of discreet and continuous form using approximation methods.