The AJRR Data Specifications Sunset

The American Joint Replacement Registry (AJRR) will not be accepting previous Data Specification formats after 9/30/18. This streamlined submission process for all participants and the standardization of data elements will help lead to more robust reporting and quality analytics for your institution.

Computer with AJRR Data SpecsAll participants must use AJRR Data Specifications Version 7.13.2017.revision 1 after 9/30/18. Any data files submitted to AJRR using retired formats will no longer be imported. This includes the California Joint Replacement Registry (CJRR) format.

Our intent is not to create challenges or roadblocks for our participants and authorized vendors. The ability of our current Data Specifications to look beyond basic procedural metrics is heavily dependent on the collection of Level II and Level III data elements. The current specs will allow us to risk-adjust surgical outcomes so you can compare results fairly, report measures like length of stay and discharge disposition for a more complete picture of the episode of care, and compare your patients' comorbidity profile to national data for more accurate analysis. And although not mandatory, patient-reported outcome measures can provide insight into surgical outcomes from the patient perspective. 

AJRR staff is holding a webinar on Wednesday, August 15 to help explain the Data Spec transition process. The AJRR User Group Network (Unet) Quarterly Conference Call on Thursday, September 13 will also cover the topic.

If you would like to begin your transition process now, a link to the current AJRR Data Elements can be found here. Please contact AJRR Support at This email address is being protected from spambots. You need JavaScript enabled to view it. if you have any questions. 

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