ROSEMONT, Ill. (November 8, 2019) — The American Joint Replacement Registry (AJRR), the cornerstone of the American Academy of Orthopaedic Surgeons (AAOS) Registry Program, released its 2019 Annual Report on hip and knee arthroplasty patient outcomes. AJRR is the largest orthopaedic registry in the world based on annual procedures submitted, and the analysis provides insight into U.S. hip and knee arthroplasty practice. The …