This book deals with hip replacements, a crucial area for people suffering from severe pain caused by the degradation of this joint. Implantation of prostheses can relieve pain and restore mobility, but despite advances in materials and techniques, challenges persist, including femoral stem fracture and component wear. Research focuses on improving the performance and durability of implants, particularly through the use of biomaterials more adapted to the human body. This book explores the causes of femoral stem cracks and fractures, highlighting numerical modeling as a complementary method...