Search  Search
Font Size:     Small text Medium text Large text   email pageemail pageprint pageprint page

The National Joint Registry’s 15th Annual Report identifies continued successful outcomes across all types of joint replacement procedures 

The National Joint  Registry [NJR] for England, Wales, Northern Ireland and the Isle of Man,  has published a new report today, on Tuesday 24th September which highlights a record number of joint replacement procedures being performed. Established in 2002 by the Department for Health, the NJR monitors the performance of hip, knee, ankle, elbow and shoulder joint replacements, to improve clinical outcomes for the benefit of patients and to drive forward quality improvements.

The 15th Annual Report of the NJR presents patients’ outcome data in relation to hip, knee, shoulder, elbow and ankle replacements. The published figures bring the total number of records in the registry to approximately 2.52 million since data collection commenced in 2003.  Almost one million hip replacements and one million knee replacements have now been performed since NJR’s records began.

Overall, more joint replacements than ever before were carried out in the year,  with over 252,250 cases submitted to the NJR; this  equates  to c. 10,000 additional  joint replacement operations than recorded in the previous annual period. 

The report builds on last year’s findings, but further 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.

Commenting on the outcome data and statistics presented in the report, NJR Medical Director, Mr Martyn Porter said: “The NJR is the largest and most comprehensive national audit of joint replacement surgery in the world. The data in this report allows multiple stakeholders, the most important being patients, to see outcome data on implants and consider patient factors that affect outcome. This will hopefully drive informed decision-making for patients.

The most important function of the registry is to actively monitor performance of implants and to identify implants that are not performing as well as expected, so that the appropriate follow-up action can be taken by the regulator. This is fundamental to patient safety.

In a similar vein both hospitals and individual surgeons are also monitored and where adverse variation is identified appropriate action is taken. The NJR is now part of an integrated framework that monitors variation and detects early signals to improve patient care.”

The results of the report will be launched today at the British Orthopaedic Association’s Annual Congress in Birmingham to an international delegation of more than 1,000 joint replacement surgeons.

The full report and all joint replacement data are available online via


Notes to editors:
 Number of procedures in the registry:  As at 31 March 2018, the total number of procedures submitted to the NJR was 2.526,601 million.
1. The 15th Annual Report of the National Joint Registry for England, Wales, Northern Ireland and the Isle of Man (NJR) covers surgical procedures to 31 December 2017 (reported to the NJR by 31st March 2018).
1. The report provides outcome data in relation to hip, knee, shoulder, elbow and ankle replacements, which have been recorded for the whole operative timeline of the NJR; i.e. between 1 April 2003 and 31 December 2017 inclusive, whose records had been submitted to the NJR by 31st March 2018.
2. A summary of joint procedures submitted to the NJR during the calendar year 2017 and made available for outcome analyses in the 15th Annual Report:
o Hip procedures submitted to the NJR: 91,698
o Knee procedures submitted to the NJR: 102,177
o Shoulder procedures submitted to the NJR: 6,526
o Ankle procedures submitted to the NJR: 734
o Elbow procedures submitted to the NJR: 612
3. *Average gender, age, health of patient, and the most common indication for surgery: these data are presented in the report.

Copyright © 2020 National Joint Registry Terms and conditions Privacy policy Login