The Kaiser Permanente National Total Joint Replacement Registry

Kaiser Permanente, The Permanente Medical Group, The Permanente Federation

Elizabeth W Paxton, MA; Maria Inacio, MS; Tamara Slipchenko, PhD; Donald C Fithian, MD

Summer 2008 - Volume 12 Number 3

https://doi.org/10.7812/TPP/08-008

Abstract

The Kaiser Permanente National Total Joint Replacement Registry (TJRR) is a national level database designed as a postmarket surveillance system for elective total hip and knee replacement. As of March 31, 2007, the TJRR recorded 16,945 primary total hip arthroplasties (THA), 2144 revisions (11.2%); and 30,815 total knee arthroplasties (TKA), 1794 revisions (5.5%). Statistically significant findings include: older age and higher American Society of Anesthesiology risk scores for revision THAs. Osteoarthritis is the most common diagnosis for THA and TKA, and aseptic loosening and instability are most common in revision THAs and TKAs. The TJRR has provided a mechanism for recalls, identified patients at risk for early revisions and changed practice by providing feedback to physicians.

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