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About the NJR

The National Joint Registry (NJR) for England, Wales, Northern Ireland and the Isle of Man collects information on hip, knee, ankle, elbow and shoulder joint replacement surgery and monitors the performance of joint replacement implants. The NJR is hosted by the Healthcare Quality Improvement Partnership (HQIP) and overseen by a Steering Committee (NJRSC), which is designated as an NHS England (NHS E) ‘Expert Committee’. 

The NJRSC Chairman reports directly to the NHS E Medical Director. NJR core services are managed under two contracts held with: Northgate Public Services: for collection and management of data and technology and the University of Bristol: for provision of statistical support and analysis of data, to support NJR outcome monitoring, research activity and publications.

The NJR management team, based at HQIP, is responsible for overall operational and contract management of the NJR and for supporting the work of the NJRSC and its sub-committees. Hip, knee, ankle, elbow and shoulder joint replacements have become more common and are generally highly successful operations that bring many patients improved mobility and relief from pain. Many thousands of such operations take place in the UK each year.

A wide range of implants can be used in the joint replacement operations. The registry helps to monitor the performance of these implants and the effectiveness of different types of surgery, improving clinical standards and benefiting patients, clinicians and the orthopaedic sector as a whole. The NJR currently collects data on all hip, knee, ankle, elbow and shoulder joint replacements across the NHS and the independent healthcare sector.  


NJR mission statement:

'The purpose of the National Joint Registry for England, Wales, Northern Ireland and the Isle of Man is to collect high quality and relevant data about joint replacement surgery in order to provide an early warning of issues relating to patient safety. In a continuous drive to improve the quality of outcomes and ensure the quality and cost effectiveness of joint replacement surgery, the NJR will monitor and report on outcomes, and support and enable related research.'

NJR goals:

- Monitor in real time the outcomes achieved by brand of prosthesis, hospital and surgeon, and highlight where these fall below an expected performance in order to allow prompt investigation and to support follow-up action.

-  Inform patients, clinicians, providers and commissioners of healthcare, regulators and implant suppliers of the outcomes achieved in joint replacement surgery.

- Evidence variations in outcome achieved across surgical practice in order to inform best practice.

- Enhance patient awareness of joint replacement outcomes to better inform patient choice and patients' quality of experience through engagement with  

- Support evidence-based purchasing of joint replacement implants for healthcare providers to support quality and cost effectiveness.

- Support suppliers in the routine post-market surveillance of implants and provide information to clinicians, patients, hospital management and the regulatory authorities.


Timeline of data collection:

  • Isle of Man joins the NJR in July 2015

  • Northern Ireland joins the NJR in February 2013

  • Elbow and shoulder joint replacements collected since April 2012

  • Ankle joint replacements collected since April 2010

  • Hip and knee joint replacements collected since April 2003


The NJR Steering Committee is responsible for overseeing the strategic direction of the NJR. Find out more ►

The NJR Steering Committee is supported by the NJR management team, who are hosted at the offices of HQIP. Find out more ►








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