A knee replacement is major surgery, so is normally only recommended if other treatments, such as physiotherapy or steroid injections, haven't helped reduce pain or improve mobility.
You may be offered knee replacement surgery if:
Learn more in why knee replacement surgery is used.
Adults of any age can be considered for a knee replacement, although it's typically recommended for older people as young, physically active people are more likely to wear the joint out.
The earlier you have a knee replacement, the greater the chance you will eventually need further surgery.However, there is some evidence that replacing the knee joint before it becomes very stiff leads to a better outcome.
Most total knee replacements are carried out on people between the ages of 60 and 80. You will need to be well enough to cope with both a major operation and the rehabilitation afterwards.Read more aboutgetting ready for knee replacement surgeryandrecovering from knee replacement surgery.
Knee replacement surgery is a common operation and most people do not experience complications.
In some cases, the new knee joint may not be completely stable and further surgery may be needed to correct it.