Knee Replacement Surgeon in Dombivli Knee Replacement Surgery is a procedure that involves replacing an injured or ailing knee with an artificial joint, or prosthesis. The procedure to remove your old knee and replace it with a prosthesis usually takes less than two hours, but recovery and rehabilitation can last months. Sometimes, either the socket of the Knee or the thighbone is injured or becomes diseased. This can result in pain, trouble with walking, or difficulty with everyday tasks. You may have already tried pain relief methods such as medications, physical therapy, supports, or braces. If the pain doesn’t subside, your doctor may recommend Knee replacement surgery.