Measurement of volume metrics are important to the American Joint Replacement Registry (AJRR) because they provide indicators and insights into our data and in what areas we need to focus and improve. With over 1,000 contracted hospitals/surgery centers providing data on more than 8,000 surgeons, annually we collect more arthroplasty procedures than any other registry in the world. Over 1.3 million hip and knee arthroplasty procedures are currently housed in the AJRR database.
AJRR began the Registry because no national comparator for arthroplasty existed. Each year, AJRR makes significant and actionable progress toward becoming that premier resource. Furthermore, we take measures toward demonstrating that our data is both relevant and nationally representative through multiple statistical analysis efforts. Two of those efforts are highlighted below (one is ongoing):