Long-term study of outcomes after hip and knee joint replacement

The purpose of this research study is to develop a database of information regarding the diagnosis, treatment, and outcome of participants who have had a joint replacement. The more information gathered, the better the investigators will be able to treat future patients who need a joint replacement. For example the investigators learn what works well to help design implants and treatment protocols for the future. The investigators publish manuscripts and present research findings around the world to help other investigators and clinicians learn what is discovered. Furthermore, implant manufacturers may be able to use this information in the database to evaluate the success rates of specific joint replacement products.