This book presents recent results related to both materials aspects and implant issues. The focus is on structural, magnetic, antibacterial, bioactivity/compatibility, mechanical, and other related properties and the implication of these results on biomedical applications. The book discusses technical problems faced by the surgeon during implant fixation in total hip replacement and the selection of materials based on the patient’s requirement. It also addresses recent advances in implant materials, including the reinforcement and biocompatibility issues.