Mechanical Analysis of Carbon Epoxy-Filled UHMWPE Composite-Based Tibial Spacer Using ANSYS-22R1 for Total Knee Replacement Implant

The field of biomedical implants has advanced significantly in recent years. Polymer-based bio-composites are gaining more attention due to their lightweight and enriched properties. In a total knee replacement (TKR), ceramic, metal, and polymeric artificial components are surgically inserted to replace the whole load-bearing joint. The tibial spacer, which mimics articular cartilage, is one of the most significant part of the total knee replacement implant. The bio-compatible carbon epoxy composite tibial spacer has been created in the current work using ANSYS-22R1 workbench. The impacts of testing criteria including von Mises stress, principal stress and total deformation were performed for the carbon epoxy composite tibial spacer. The maximum total deformation was obtained 18918 m for carbon epoxy that is lesser as compared to ultra-high molecular weight polyethylene (UHMWPE) which have total deformation of 25378 m. The simulation’s results fell within the parameters needed for knee implants. The maximum shear stress value fell within the permissible range, i.e., 71.03 MPa, required for mechanics of human knee.