Knee joint replacement operation

Knee joint replacement surgery (arthroplasty) is a common operation that involves replacing a damaged, worn or diseased knee with an artificial joint.

Adults of any age can be considered for a knee replacement, although most are carried out on people between the ages of 60 and 80.

A smaller operation called a partial knee replacement tends to be performed on younger people aged between 55 and 64 where the artificial joint is expected to need redoing within 10 years.