The longevity of prosthetic knees varies from patient to patient. It depends on many factors, including your physical condition, activity level, weight, and the accuracy of the implant placement during surgery. It is useful to keep in mind that prosthetic knee joints are not as strong or durable as a natural, healthy knee joint, and there is no guarantee that your knee replacement will last the rest of your life.
Talk with your doctor about the following points and how they might affect the longevity and success of your knee replacement. In general, you'll want to: