Essay from the year 2018 in the subject Medicine - Orthopedy, , language: English, abstract: The significance of total hip replacement is due to continuous improvement in population and ageing people who are in pursuit of high-quality life. If there is any malfunctioning in hip joint, the reason of which may be the hip fracture, osteoporosis, and injury due to recurrent falls in old age, hip replacement is the perfect solution. Total hip replacements enhance the motile and gratification of life of the patient by mitigating pain and disability. The material which used in total hip replacements should have excellent properties in the term of, resistance to fracture, mechanical, corrosion resistance, high strength, reliable in load bearing and wear resistance which became the cause of great lifespan for the implant as well as compatibility inside the body. Due to these reasons, Metallic materials are very suitable for the hip implant. Continuous research to obtain improved biomaterials for excellent performances is going on worldwide. The standard lifespan of human increases so the requirement of the excellent lifespan of the implant also highly increased due to this reason the material, which used for implants, required improvement in properties of materials. This article focuses on the discussion of mechanical aspects of metallic biomaterials which used for human hip joint replacement. Specific metallic biomaterials made from stainless steels, alloys of cobalt, discussed in this article.