In our hip, the femur bone is like a knob and this knob sits in a suitable groove in the pelvis. If the anatomic structure of this joint is disrupted, the patients feel pain in their hip and their quality of life reduces.  Generally, the conditions in that hip replacement surgery are performed are the cases such as calcification that renders the hip joint dysfunctional related to various reasons, death of the hip bone head called avascular necrosis, hip joint fractures, rheumatological diseases and hip dislocation sequelae and the joints are replaced.