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Related Experiment Videos

The Oxford Knee Score; problems and pitfalls.

Sarah L Whitehouse1, Ashley W Blom, Adrian H Taylor

  • 1Avon Orthopaedic Centre, Southmead Hospital, 23 Old Sneed Ave., Stoke Bishop, Bristol BS9 1SD, United Kingdom.

The Knee
|July 5, 2005
PubMed
Summary
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The Oxford Knee Score (OKS) shows limitations in accurately assessing total knee arthroplasty outcomes via postal questionnaires. Many patients struggled to complete it, indicating a need for revision for detailed outcome studies.

Area of Science:

  • Orthopedic Surgery
  • Patient-Reported Outcome Measures

Background:

  • The Oxford Knee Score (OKS) is a patient-reported outcome measure for total knee arthroplasty (TKA).
  • Auditing TKA outcomes using the OKS is crucial for evaluating treatment effectiveness.

Purpose of the Study:

  • To assess the feasibility and accuracy of unassisted patient completion of the OKS.
  • To identify limitations of the OKS in a real-world clinical setting.

Main Methods:

  • A cohort of 856 patients undergoing TKA received OKS questionnaires.
  • Response and completion rates were analyzed.
  • Item analysis and Cronbach's alpha were used to evaluate questionnaire performance.

Main Results:

  • A 90% response rate (769/856) was achieved.

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  • Only 81% (624/769) of respondents fully completed the questionnaire.
  • Significant issues were noted with specific items, such as item 4 (walking time), which was omitted by 13% of respondents.

    • Conclusions:

    • The OKS, in its current format, presents challenges for unassisted patient completion.
    • Limitations in question clarity and response categories necessitate revision.
    • The OKS may not be ideal for detailed outcome studies or clinical trials requiring postal assessment.