Published 11/8/2019

American Joint Replacement Registry releases 2019 Annual Report

Data shows continuity of hip and knee arthroplasty trends and new findings from enhanced survivorship analyses

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 Annual Report, released in conjunction with the first day of the American Association of Hip and Knee Surgeons’ (AAHKS) 2019 Annual Meeting, includes findings from 1,525,435 hip and knee arthroplasty procedures performed between 2012 and 2018.

James A. Browne, MD, chair of the AJRR Publications Committee and editor of AJRR Publications said, “Highlights in this annual report include new analysis of timely topics including dual mobility hip bearings and cementless fixation in total knee arthroplasty, exploration of the impact of patient comorbidities including smoking, and more sophisticated survivorship analyses with adjustment for age and sex, along with other findings.”

Kevin J. Bozic, MD, MBA, chair of AJRR Steering Committee added: “Building on an already solid foundation, this year’s Annual Report provides additional clinical insights and risk stratified outcome analyses related to patients who undergo hip and knee arthroplasty procedures. These analyses were made possible by the successful integration of administrative claims data into AJRR, which provides a more complete picture of our patient population and their associated comorbidities and outcomes, including longitudinal outcomes of patients who receive care at non-AJRR participating sites.”

Other highlights from the 2019 AJRR Annual Report showcase new or enhanced Registry capabilities and offerings including:

  • Increased tracking and monitoring of patient outcomes with longitudinal patient information through the expansion of the Registry analytics platform, RegistryInsights®. Now, participating hospitals, ambulatory surgery centers, and individual surgeons have the ability to view their respective dashboards displaying their data compared to the AJRR national benchmark.
  • Enhanced capture of patient-reported outcome measures (PROMs) through continued support of the RegistryInsights® PROM platform and partnerships with third party vendors with the expanded Authorized Vendor Program.
  • Additional opportunities for sites to track performance measurements and use Registry data in national quality improvement (QI) programs.
  • Peer-reviewed publications and presentations based on AJRR Registry data.

Enhanced analytics is always the goal of each AJRR Annual Report. This year represents the second year we include survivorship curves and the addition of CMS claims data. Much time was spent determining a multi-stakeholder consensus-driven methodology. This created a foundation for the Report and allows for more sophisticated and detailed survivorship curves in the future.

The 2019 AJRR Annual Report marks the sixth annual report from the AJRR. It aims to provide valuable information to orthopaedic surgeons, hospitals, ambulatory surgery centers, device manufacturers, payers, and most importantly patients.

To read and download the complete 2019 report, visit the AJRR website. Slides with figures and data tables as featured in the report are also available.

About the AAOS
With more than 39,000 members, the American Academy of Orthopaedic Surgeons is the world’s largest medical association of musculoskeletal specialists. The AAOS is the trusted leader in advancing musculoskeletal health. It provides the highest quality, most comprehensive education to help orthopaedic surgeons and allied health professionals at every career level best treat patients in their daily practices. The AAOS is the source for information on bone and joint conditions, treatments and related musculoskeletal health care issues and it leads the health care discussion on advancing quality.
AAOS Registry Program
The American Joint Replacement Registry (AJRR), the Academy’s hip and knee replacement registry, is the cornerstone of the AAOS’s Registry Program, and the world’s largest national registry of hip and knee joint replacement data by annual procedural count, with more than 1.7 million procedures contained within its database. Additional registries include Shoulder & Elbow and the Musculoskeletal Tumor Registry Pilot. Early next year, the program’s fourth anatomical registry, the American Spine Registry, will begin enrolling participants as part of a collaborative effort between the AAOS and American Association of Neurological Surgeons (AANS). 

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For more information about the AAOS Registry Program click here.

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Deanna Killackey 


Lauren Riley