The National Joint Registry (NJR) is the arthroplasty registry for England, Wales and Northern Ireland, and was set up in 2002 by the Department of Health and the Welsh and Northern Irish Governments.
Hip, knee, ankle, elbow and shoulder joint replacements are included in the NJR (hip replacements for femoral fractures are tracked by the National Hip Fracture Database and are not included in the NJR).
Currently ~93% of the procedures from public hospitals and ~96% from private hospitals are included. Up to the end of 2013 more than 620,000 primary hip procedures and more than 640,000 primary knee procedures were included in the NJR, making this the largest arthroplasty registry worldwide.
The NJR Supplier Feedback allows prosthetic implant suppliers to download NJR data extracts showing outcomes of procedures using their products. The reports are generated quarterly, and Heraeus Medical has purchased these reports since 2014 for market surveillance, quality control and real-world evidence data generation.