BOPDHB Patient Resources Hip and Knee joint replacement book - June 2016 | Page 7

A total hip replacement is a surgical procedure for replacing the hip joint. The hip joint is made up of two parts, the hip socket (acetabulum, a cup shaped bone in the pelvis) and the “ball” or head of the thigh bone (femur). During the operation, these two parts are removed and replaced with smooth artificial surfaces. These artificial pieces (the prosthesis) are implanted into healthy portions of the pelvis and thigh bone. The total hip replacement operation is designed to relieve pain, reduce stiffness and improve your ability to walk. Introduction What is a total hip replacement? What is a total knee replacement? A total knee replacement is a surgical procedure for replacing the knee joint. The knee joint is made up of the lower end of the thigh bone (femur) which rotates on the upper end of the shin bone (tibia) and the knee cap (patella), which slides in a groove on the end of the femur. During the operation, these parts are removed and replaced with smooth artificial surfaces. 5