The American Joint Replacement Registry and the California Joint Replacement Registry Announce Affiliation

The California Joint Replacement Registry (CJRR), founded and primarily funded by the California HealthCare Foundation (CHCF), and the American Joint Replacement Registry (AJRR) today announced the transfer of CJRR to AJRR. Both CJRR and AJRR are registries that collect clinical information about hip and knee replacement surgeries. This new relationship between the two organizations will help advance the mission to provide better outcomes for patients having total hip and knee arthroplasties in California and throughout the United States.

Effective as of the transaction closing earlier today, CJRR will be solely owned and managed by AJRR. CHCF will provide a restricted grant to CJRR to aid AJRR in the transition process and to support CJRR’s operations as a separate entity, in parallel with AJRR operations. As part of the agreement between CHCF and AJRR, CJRR will continue public reporting of patient outcomes in consultation with the newly formed California Data Use Group (CDUG). CDUG will serve as an advisory committee to CJRR.

“This announcement is the culmination of a longstanding vision for CJRR to further the national conversation about the collection and public reporting of patient-reported outcome data,” said Sandra R. Hernández, MD, CHCF president and CEO. “Partnering with a national organization such as AJRR makes sense given the similarity of our missions, the opportunity for AJRR to apply the CJRR data-collection model in other parts of the country, and the ability of AJRR to feed those results, including national benchmarks, back to California hospitals.”

Currently approximately 45 hospitals and their affiliated surgeons contribute data to CJRR. These hospitals perform more than one third of the total volume of hip and knee replacements in the state. AJRR has 30 participating sites in California, 18 of which participate in CJRR.

“CJRR brings a wealth of knowledge and expertise in collecting and reporting robust, standardized patient-reported outcomes, which we are excited to see integrated into AJRR,” said Daniel J. Berry, MD, chair of the AJRR board of directors. “This affiliation will help us to provide the best service possible to all participating institutions and surgeons throughout the country.”

The agreement continues a tradition of collaboration between the two organizations. Over several years, the two registries have worked to align data elements, share resources, and support shared policy objectives. In addition, there is significant overlap among the leadership.

“Since CJRR’s founding in 2009, we have always had the vision that CJRR would become part of the national total joint replacement registry effort when mature,” said Kevin Bozic, MD, MBA, founding chair of CJRR and current vice chair of AJRR. “This union will allow AJRR to capitalize on the expertise in measuring patient-reported outcomes that we have developed in California over the past six years, and allow Californians to have an impact on the national effort to improve total joint replacement patient outcomes.”

More information, including a set of frequently asked questions, is available at and


About AJRR

The American Joint Replacement Registry (AJRR) is a multistakeholder, independent, not-for-profit 501(c)(3) organization for data collection and quality improvement initiatives for total hip and knee replacements. AJRR’s goal is to optimize patient outcomes through collection of data on all primary and revision total joint replacement procedures in the U.S. The mission of the registry is to enhance patient safety, improve quality of care, and reduce the cost of care. As of February 2015, AJRR contains hip and knee procedures from over 450 hospitals and 2,900 surgeons in 50 states. The registry is increasing at a rate of 2,500 procedures per week. Today, the registry contains more than 240,000 procedures. For more information about AJRR, visit

About CJRR

The California Joint Replacement Registry (CJRR), founded and primarily funded by the California HealthCare Foundation, was created to meet the need for comprehensive, scientific assessment of devices, treatment protocols, surgical approaches, and patient factors influencing the results of hip and knee replacement surgeries. The Pacific Business Group on Health (PBGH) and the California Orthopaedic Association (COA) were founding partners and have contributed both funding and in-kind support since CJRR’s inception.

CJRR is a Level III registry, meaning it collects and incorporates clinical information and direct feedback from patients about the outcomes of their hip and knee replacement surgeries. It is one of only a small number of registries in the United States to do so.

Contact Information:
Sally Mudd
Director of Engagement

About the California Health Care Foundation

The California Health Care Foundation is dedicated to advancing meaningful, measurable improvements in the way the health care delivery system provides care to the people of California, particularly those with low incomes and those whose needs are not well served by the status quo. We work to ensure that people have access to the care they need, when they need it, at a price they can afford.