ROSEMONT, Ill., June 26, 2020 /PRNewswire/ — The American Joint Replacement Registry (AJRR), the cornerstone of the American Academy of Orthopaedic Surgeons’ Registry Program and the world’s largest national registry of hip and knee joint replacement data by annual procedural count, proudly announced that it reached and surpassed its two millionth hip and knee procedure with the input of data from Mayo …