Evaluation of Stability between Conventional Femoral Stem and Short Stem in Total Hip Arthroplasty

Abstract

Abstract Total Hip Arthroplasty (THA) is a surgical procedure that
involves replacing a damaged or diseased hip joint with an artificial
implant. This study focused on the design aspect of the femoral stem to
enhance implant stability, a critical factor in the success of THA. The
primary objectives of this research are threefold: firstly, to design
different types of design using Solidwork. Next, to perform a simulation
of stability analysis using Abaqus software; and thirdly, to evaluate on
the assessment of stability at the bone-implant interface. The analysis in
Abaqus software involves a comprehensive simulation of the
mechanical behavior of the femoral stem under normal walking
conditions. In this study, the factors such as material properties, load
distribution, and contact mechanics at the bone-implant interface has
been evaluated. Finite element analysis (FEA) has been implements to
exam the displacement of the implant. The simulation results show that
the conventional stem provides more stability, while the shorter stem
provides less stability, with the collarless option positioned between the
conventional and short stem. This shows that the stem design has a
significant impact on the stability of the bone-implant interface. The
study emphasizes that the stability of the bone-implant interface is a
key determinant in the success of THA. In summary, the various designs
of femoral stems significantly affect the stability of the implant. This
study emphasizes the vital importance of femoral stem design in
shaping and impacting the overall stability of the bone implant