A total knee replacement is an operation that replaces an arthritic knee joint with artificial one. Mr Gardner replaces the worn out ends of the bone with metal and places a plastic inset between them to restore the bearing, the knee cap is replaced if it is worn out.
This procedure is recommended if conservative measures such as pain killers and weight loss have not worked.
The time have to have a total knee replacement is when the benefits of surgery outweigh the risks of surgery.
Mr Gardner will discuss the risks prior to surgery. If you cannot sleep at night because of pain and are unable to do the activities you want to do during the day then you may benefit from a total knee replacement.