Hip joint replacement is surgery to replace all or part of the hip joint with a man-made joint. The artificial joint is called a prosthesis.| medlineplus.gov
Knee joint replacement is a surgery to replace a knee joint with a man-made artificial joint. The artificial joint is called a prosthesis.| medlineplus.gov
Hip fracture surgery is done to repair a break in the upper part of the thigh bone. The thigh bone is called the femur. It is part of the hip joint.| medlineplus.gov