Hip joint surgery involves operative methodologies in which the artificial joint replaces the dysfunctional hip joints.
The hip pairs are pairs of balls and sockets suggesting both joints can be twisted or moved in certain ways. The upper part of the thigh bone is the hip joint ball, and the acetabulum is its socket. Partial hip joint replacement surgery only requires removing the hip bone. In complete replacement surgery of the hip joints, removing the hip ball will reconstitute the socket.
The surgery is called a hip replacement, since only the affected component of the hip joint is repaired by the surgeon.