Revision Joint Arthroplasty (or Joint Replacement) is sometimes needed to correct an issue or complication from a previous Joint Replacement procedure. One of the most common reasons it is needed is to address Osteoarthritis in another area of the joint. For instance, if you have had a Partial Knee Replacement and several years later Osteoarthritis is affecting the other compartment of the knee, this compartment of the knee may now be replaced as well.