ABSTRACT
Recent developments in the field of prosthetics suggest looking for a variety of probable materials and their comparison with existing materials. Metals, ceramics, polymers, and composites are commonly used biomaterials for this purpose. Mostly metal hip implants are usually preferred to repair femur bone fracture because of their better mechanical properties. Presently stainless steel (SS), Co-Cr and Titanium (Ti) based alloys are mostly used for the commercially available bone implants. Studies show that release of Cr (Co–Cr alloys), Nb, V and Ni (Titanium-based) ions may cause harmful tissue reaction if concentration limit of these elements are exceeded than the safe limit. The material selected should be economical, compatible and should be abundant. Magnesium (Mg) and its alloys differ from other biomaterials owing to its compatible mechanical and physical properties with the human bones. Magnesium alloy has been taken as the human hip implant model for the present research work. This study presents a numerical analysis of a partial hip arthroplasty replacement implant using finite element analysis for three biomaterials namely Titanium based Ti-6Al-4V, Magnesium based Mg–Gd–Zn–Zr–Mn and Mg–4.0Zn–0.2Ca. The results show the Magnesium based alloys to be economical but not much durable as compared to Titanium based alloy.
