Long-term trends in the Oxford knee score following total knee replacement.
The Oxford knee score (OKS) is a validated and widely accepted disease-specific patient-reported outcome measure, but there is limited evidence regarding any long-term trends in the score. We reviewed 5600 individual OKS questionnaires (1547 patients) from a prospectively-collected knee replacement...
Main Authors: | , , , , , |
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Format: | Journal article |
Language: | English |
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2013
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author | Williams, D Blakey, C Hadfield, S Murray, D Price, A Field, R |
author_facet | Williams, D Blakey, C Hadfield, S Murray, D Price, A Field, R |
author_sort | Williams, D |
collection | OXFORD |
description | The Oxford knee score (OKS) is a validated and widely accepted disease-specific patient-reported outcome measure, but there is limited evidence regarding any long-term trends in the score. We reviewed 5600 individual OKS questionnaires (1547 patients) from a prospectively-collected knee replacement database, to determine the trends in OKS over a ten-year period following total knee replacement. The mean OKS pre-operatively was 19.5 (95% confidence interval (CI) 18.8 to 20.2). The maximum post-operative OKS was observed at two years (mean score 34.4 (95% CI 33.7 to 35.2)), following which a gradual but significant decline was observed through to the ten-year assessment (mean score 30.1 (95% CI 29.1 to 31.1)) (p < 0.001). A similar trend was observed for most of the individual OKS components (p < 0.001). Kneeling ability initially improved in the first year but was then followed by rapid deterioration (p < 0.001). Pain severity exhibited the greatest improvement, although residual pain was reported in over two-thirds of patients post-operatively, and peak improvement in the night pain component did not occur until year four. Post-operative OKS was lower for women (p < 0.001), those aged < 60 years (p < 0.003) and those with a body mass index > 35 kg/m(2) (p < 0.014), although similar changes in scores were observed. This information may assist surgeons in advising patients of their expected outcomes, as well as providing a comparative benchmark for evaluating longer-term outcomes following knee replacement. |
first_indexed | 2024-03-06T22:00:08Z |
format | Journal article |
id | oxford-uuid:4e4b1cb2-e2fa-43b7-acba-ef51d78a0599 |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-06T22:00:08Z |
publishDate | 2013 |
record_format | dspace |
spelling | oxford-uuid:4e4b1cb2-e2fa-43b7-acba-ef51d78a05992022-03-26T16:00:22ZLong-term trends in the Oxford knee score following total knee replacement.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4e4b1cb2-e2fa-43b7-acba-ef51d78a0599EnglishSymplectic Elements at Oxford2013Williams, DBlakey, CHadfield, SMurray, DPrice, AField, RThe Oxford knee score (OKS) is a validated and widely accepted disease-specific patient-reported outcome measure, but there is limited evidence regarding any long-term trends in the score. We reviewed 5600 individual OKS questionnaires (1547 patients) from a prospectively-collected knee replacement database, to determine the trends in OKS over a ten-year period following total knee replacement. The mean OKS pre-operatively was 19.5 (95% confidence interval (CI) 18.8 to 20.2). The maximum post-operative OKS was observed at two years (mean score 34.4 (95% CI 33.7 to 35.2)), following which a gradual but significant decline was observed through to the ten-year assessment (mean score 30.1 (95% CI 29.1 to 31.1)) (p < 0.001). A similar trend was observed for most of the individual OKS components (p < 0.001). Kneeling ability initially improved in the first year but was then followed by rapid deterioration (p < 0.001). Pain severity exhibited the greatest improvement, although residual pain was reported in over two-thirds of patients post-operatively, and peak improvement in the night pain component did not occur until year four. Post-operative OKS was lower for women (p < 0.001), those aged < 60 years (p < 0.003) and those with a body mass index > 35 kg/m(2) (p < 0.014), although similar changes in scores were observed. This information may assist surgeons in advising patients of their expected outcomes, as well as providing a comparative benchmark for evaluating longer-term outcomes following knee replacement. |
spellingShingle | Williams, D Blakey, C Hadfield, S Murray, D Price, A Field, R Long-term trends in the Oxford knee score following total knee replacement. |
title | Long-term trends in the Oxford knee score following total knee replacement. |
title_full | Long-term trends in the Oxford knee score following total knee replacement. |
title_fullStr | Long-term trends in the Oxford knee score following total knee replacement. |
title_full_unstemmed | Long-term trends in the Oxford knee score following total knee replacement. |
title_short | Long-term trends in the Oxford knee score following total knee replacement. |
title_sort | long term trends in the oxford knee score following total knee replacement |
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