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Knee injury and Osteoarthritis Outcome Score (KOOS) - validation and comparison to the WOMAC in total knee replacement.

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  • المؤلفون: Roos EM;Roos EM; Toksvig-Larsen S
  • المصدر:
    Health and quality of life outcomes [Health Qual Life Outcomes] 2003 May 25; Vol. 1, pp. 17. Date of Electronic Publication: 2003 May 25.
  • نوع النشر :
    Comparative Study; Journal Article; Validation Study
  • اللغة:
    English
  • معلومة اضافية
    • المصدر:
      Publisher: BioMed Central Country of Publication: England NLM ID: 101153626 Publication Model: Electronic Cited Medium: Internet ISSN: 1477-7525 (Electronic) Linking ISSN: 14777525 NLM ISO Abbreviation: Health Qual Life Outcomes Subsets: MEDLINE
    • بيانات النشر:
      Original Publication: [London] : BioMed Central, c2003-
    • الموضوع:
      Arthroplasty, Replacement, Knee* ; Surveys and Questionnaires*; Knee Injuries/*surgery ; Osteoarthritis, Knee/*surgery ; Outcome Assessment, Health Care/*methods; Aged ; Aged, 80 and over ; Disability Evaluation ; Female ; Humans ; Knee/physiopathology ; Male ; Middle Aged ; Reproducibility of Results
    • نبذة مختصرة :
      Background: The Knee injury and Osteoarthritis Outcome Score (KOOS) is an extension of the Western Ontario and McMaster Universities Osteoarthrtis Index (WOMAC), the most commonly used outcome instrument for assessment of patient-relevant treatment effects in osteoarthritis. KOOS was developed for younger and/or more active patients with knee injury and knee osteoarthritis and has in previous studies on these groups been the more responsive instrument compared to the WOMAC. Some patients eligible for total knee replacement have expectations of more demanding physical functions than required for daily living. This encouraged us to study the use of the Knee injury and Osteoarthritis Outcome Score (KOOS) to assess the outcome of total knee replacement.
      Methods: We studied the test-retest reliability, validity and responsiveness of the Swedish version LK 1.0 of the KOOS when used to prospectively evaluate the outcome of 105 patients (mean age 71.3, 66 women) after total knee replacement. The follow-up rates at 6 and 12 months were 92% and 86%, respectively.
      Results: The intraclass correlation coefficients were over 0.75 for all subscales indicating sufficient test-retest reliability. Bland-Altman plots confirmed this finding. Over 90% of the patients regarded improvement in the subscales Pain, Symptoms, Activities of Daily Living, and knee-related Quality of Life to be extremely or very important when deciding to have their knee operated on indicating good content validity. The correlations found in comparison to the SF-36 indicated the KOOS measured expected constructs. The most responsive subscale was knee-related Quality of Life. The effect sizes of the five KOOS subscales at 12 months ranged from 1.08 to 3.54 and for the WOMAC from 1.65 to 2.56.
      Conclusion: The Knee injury and Osteoarthritis Outcome Score (KOOS) is a valid, reliable, and responsive outcome measure in total joint replacement. In comparison to the WOMAC, the KOOS improved validity and may be at least as responsive as the WOMAC.
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    • الموضوع:
      Date Created: 20030613 Date Completed: 20090630 Latest Revision: 20220410
    • الموضوع:
      20221213
    • الرقم المعرف:
      PMC161802
    • الرقم المعرف:
      10.1186/1477-7525-1-17
    • الرقم المعرف:
      12801417