Other names
Knee prosthesis
DescriptionKnee replacement surgery is usually undertaken when osteoarthritis has resulted in the wearing down of the knee joint. In a knee replacement operation the worn out and arthritic parts of the knee joint are removed and replaced with a new, artificial knee joint. The new knee joint is called a prosthesis. Knee replacement surgery should improve an individual's mobility, by reducing pain and improving the function of the knee joint.