Finite Element Study of Composite Materials as an Alternative for Metal Hip Prothesis Using Variable Load

摘要

A total hip replacement is a surgical procedure in which the damaged cartilage and the hip joint bone are replaced by metal prosthesis. The durability and loosennig of a prosthesis are considered as the main existing problems after surgery. Therefore, it is very important to choose a suitable material for the prosthesis in order to prevent loosening problem or increase the durability. This study aimed to perform a Finite Element (FE) simulation to analyze the effects of variable range of loadings on the prosthesis, which is made of carbon/Peek composite and Aluminium (AI)/Titanium alloy ones. The results revealed that the carbon composites provide a flatter variable load transfer compared to the metal prosthesis. In addition, the composite prosthesis experienced less stress, strain, and deformation compared to the metal ones considering statistics/dynamics loads. The findings of the current study may have implications not only for understanding the potential ability of the carbon/Peek composite, as a new design for femoral prosthesis, but also would extend the application of such materials for the surgical procedure purposes.