Publication, Part of Patient Reported Outcome Measures (PROMs)
Finalised Patient Reported Outcome Measures (PROMs) in England for Hip and Knee Replacement Procedures (April 2021 to March 2022)
Official statistics
Health Gain for Knee Replacements
Total Knee Replacements
For knee replacements, the percentage of patients reporting an improvement in health has increased for all questionnaires since 2010-11. The EQ VAS has shown the highest increase, from 50.8% in 2010-11 to 60.7% in 2021-22. The percentage reporting an improvement has increased compared to last year (58.6% in 2020-21).
Average Health Gain for Total Knee Replacements
The average health gains for knee replacement patients have also increased since 2010-11:
|
Measure |
2010-11 |
2020-21 |
2021-22 |
|
Oxford Knee Score |
14.6 |
16.8 |
17.3 |
|
EQ-5D Index |
0.292 |
0.317 |
0.326 |
|
EQ VAS |
3.0 |
7.2 |
8.0 |
The average health gains for Oxford Knee Score, EQ-5D Index and EQ VAS all increased from last year.
Primary and Revision Knee Replacements
As with hip replacements, if the questionnaire has linked to an episode from the Hospital Episode Statistics data set then we are able to classify the procedure as a primary or revision knee replacement. The highest percentage of patient reporting improvement for primary procedures occurred for the Oxford Knee Score (95.2%). This is a small increase compared to last year (94.4% in 2020-21). For revision procedures, 87.4% of patients reported an improvement in health. This is a decrease compared to last year (90.2% in 2020-21).
Average Health Gain for Primary and Revision Procedures
The table below shows the average health gain for primary and revision knee replacements.
|
Measure |
Primary |
Revision |
|
Oxford Knee Score |
17.6 |
14.1 |
|
EQ-5D Index |
0.326 |
0.311 |
|
EQ VAS |
8.5 |
7.3 |
When comparing to last year, the average health gains have increased for all measures (Oxford Knee Score: 16.9 for primary and 13.6 for revision; EQ-5D Index: 0.315 for primary and 0.305 for revision; EQ VAS: 7.4 for primary and 4.3 for revision for 2020-21).
Sector Analysis
The national PROMs programme collects data for NHS funded activity only, however patients can be treated at either NHS or independent sector organisations. This may be due to patient choice or subcontracting arrangements between organisations.
The proportion of providers with a reported organisational average health gain above the national average is higher for independent providers than providers in the NHS for primary knee replacement procedures.
59.7% of independent organisations were above the national average compared to 41.1% of NHS organisations. Independent organisations account for 47.9% of all organisations with 30 or more modelled records.
Last edited: 3 December 2024 11:15 am