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Annual reports

NJR Annual Reports analyse the data submitted to the NJR, and highlight the aims and achievements of the National Joint Registry, its Steering Committee and its sub-committees and are released in September each year.

The key analyses of the NJR's 15th, and latest, Annual Report – covering 2017/18 data – was published to coincide with the official programme at the British Orthopaedic Association Annual Congress in Birmingham, September 2018.

Download the NJR 15th Annual Report (pdf) >

Visit the dedicated website at >

Data from over 2.52 million procedures are now registered on the NJR with continued growth expected now that elbow and shoulder replacement data collection is more comprehensive (since April 2012) and both Northern Ireland and the Isle of Man have joined the NJR (from February 2013 and July 2015 respectively).

VIDEO: What does the 14th Annual Report tell us?

Mr Michael Whitehouse, NJR statistical analysis (University of Bristol), presented the findings from last year's Annual Report as part of the NJR's 'mini-theatre' exhibition stand programme at the British Orthopaedic Association's (BOA) Annual Congress:

Download the presentation slides via the NJR website here (▼)

2018 report highlights: record number of procedures being performed during 2017/18

Today's Annual Report from the National Joint Registry for England, Wales, Northern Ireland and the Isle of Man (NJR) highlights a record number of procedures being performed during 2017/18.

More joint replacements than ever before were carried out in the financial year 2017/18, with just over than 252,000 cases submitted to the NJR. This sees a significant increase of almost 10,000 joint replacement operations recorded in the registry on the previous period.

For most patients across all joint replacement procedures recorded in the registry, the risk of having the first-time implant replaced (known as ‘revision’ surgery) within thirteen years was low.

The report builds on last year’s findings, but key messages this year are as follows:

·         the risk of having a first time [primary]  implant replaced (known as ‘revision’ surgery) remains low;

·         the number of shoulder, ankle and elbow replacements have all increased since last year;

·         primary procedures were performed for osteoarthritis in almost 92 per cent of cases of joint replacement;

·         more hip and knee replacements were carried out in women versus men, consistent with the increased incidence of osteoarthritis in women;

·         for the majority of patients undergoing hip or knee replacement over the age of 75, the  replacement will last for the rest of their lives.



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