Metal-on-metal hip implants have led to some patients developing metallosis, a condition in which build-up of metal debris in the soft tissues of the body occur.
Hip replacement surgery (hip arthroplasty) has been described by many experts as one of the most significant medical device innovations of the last 40 years. It has helped millions of people overcome painful arthritis, recover from hip fractures and improve their quality of life. However, hip implants do not come without risk or complications. A growing number of implant recipients have experienced implant failure and other severe hip replacement complications.
There are three types of hip replacement surgery. With total hip replacement, the entire hip joint — ball and socket, as well as femoral stem — is replaced. Partial hip replacement requires only the ball (femoral head) to be replaced. In a hip resurfacing procedure, the cup is replaced, but the ball is not. Instead, the ball is reshaped and covered with a metal cap.