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Publication, Part of

Finalised Patient Reported Outcome Measures (PROMs) in England for Hip & Knee Replacements, April 2018 – March 2019

Official statistics

Publication Date:
13 Feb 2020
Geographic Coverage:
England
Geographical Granularity:
Country, Strategic Health Authorities, Hospital Trusts, Primary Care Trusts, Independent Sector Health Care Providers, Clinical Commissioning Groups, NHS Trusts, Primary Care Organisations, County, Care Trusts, Hospital and Community Health Services
Date Range:
01 Apr 2018 to 31 Mar 2019

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Health Gain for Hip Replacements

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Health Gain for Knee Replacements

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Patient Engagement
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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 2009-10. The EQ VAS  has shown the highest increase, from 50.2% in 2009-10 to 59.1% in 2018-19. The percentage reporting an improvement is similar to last year (59.6% in 2017-18).

Percentage Improvement for Total Knee Replacements (Source: PROMs, NHS Digital)
Download the data for this chart Percentage Improvement for Total Knee Replacements (Source: PROMs, NHS Digital)

Average Health Gain for Total Knee Replacements

The average health gains for knee replacement patients has also increased slightly since 2009-10:

Measure

2009-10

 2017-18

2018-19
Oxford Knee Score 14.6 16.9 17.0
EQ-5D Index 0.292 0.333 0.334
EQ VAS 3.0 8.0 7.5

When comparing to last year, the average health gains are similar for Oxford Knee Score and EQ-5D Index (16.9 and 0.333 respectively for 2017-18). The EQ VAS has shown a slight decrease from last year (8.0 in 2017-18).

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 (94.9%). This is very similar to last year (95.0% in 2017-18). For revision procedures, 88.2% of patients reported an improvement in health. This is an increase from last year (87.5% in 2017-18).

Percentage Improvement for Primary and Revision Knee Replacements (Source: PROMs, NHS Digital)
Download the data for this chart Percentage Improvement for Primary and Revision Knee Replacements (Source: PROMs, NHS Digital)

Average Health Gain for Primary and Revision Procedures

The average health gains for hip replacement patients has also increased slightly since 2009-10:

Measure

Primary

Revision
Oxford Knee Score 17.4 13.6
EQ-5D Index 0.338 0.288
EQ VAS 7.6 4.8

When comparing to last year, the average health gains are almost the same for Oxford Knee Score (17.2 for primary and 13.2 for revision in 2017-18). The EQ-5D Index is also very similar to 2017-18 (0.338 for primary and 0.287 for revision). The EQ VAS has shown a slight decrease from last year (8.3 for primary and 4.8 for revision).

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.

58.6% of independent organisations were above the national average compared to 43.7% of NHS organisations. Independent organisations account for 46.8% of all organisations with 30 or more modelled records.

Last edited: 23 May 2023 1:25 pm

Previous Chapter

Health Gain for Hip Replacements

Next Chapter

Patient Engagement