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The 12-item Oxford Knee Score: cross-cultural adaptation into German and assessment of its psychometric properties in patients with osteoarthritis of the knee.
Osteoarthritis Cartilage. 2009 Jan; 17(1):49-52.OC

Abstract

OBJECTIVE

To cross-culturally adapt and validate the Oxford Knee Score (OKS) for use in German-speaking patients with osteoarthritis of the knee.

METHODS

After the cross-cultural adaptation (OKS-D), the following metric properties of the questionnaire were assessed in 100 consecutive patients (mean age 66.5 years, 61 women) undergoing total knee replacement: feasibility (percentage of fully completed questionnaires), reliability (Intraclass Correlation Coefficients [ICC] and Bland and Altman's limits of agreement), and construct validity (correlation with the Western Ontario and McMaster Universities Index [WOMAC], Knee Society Score [KSS], Activities of Daily Living Scale [ADLS], and Short Form 12 [SF-12]), floor and ceiling effects, and internal consistency (Cronbach's Alpha, CA).

RESULTS

We received 91.9% fully completed questionnaires. Reliability of the OKS-D was excellent (ICC 0.91). Bland and Altman's limits of agreement revealed no significant bias (-0.2) and a random error of 6.2. Correlation coefficients with the other questionnaires ranged from -0.22 (SF-12 Mental Component Scale [MCS]) to -0.77 (ADLS). We observed no floor or ceiling effects. The CA was 0.83.

CONCLUSIONS

The German version of the OKS is a reliable and valid measure for the self-assessment of pain and function in German-speaking patients with osteoarthritis of the knee.

Authors+Show Affiliations

Department of Orthopaedic Surgery, Schulthess Clinic, Zurich, Switzerland. florian.naal@gmail.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Validation Study

Language

eng

PubMed ID

18602843

Citation

Naal, F D., et al. "The 12-item Oxford Knee Score: Cross-cultural Adaptation Into German and Assessment of Its Psychometric Properties in Patients With Osteoarthritis of the Knee." Osteoarthritis and Cartilage, vol. 17, no. 1, 2009, pp. 49-52.
Naal FD, Impellizzeri FM, Sieverding M, et al. The 12-item Oxford Knee Score: cross-cultural adaptation into German and assessment of its psychometric properties in patients with osteoarthritis of the knee. Osteoarthr Cartil. 2009;17(1):49-52.
Naal, F. D., Impellizzeri, F. M., Sieverding, M., Loibl, M., von Knoch, F., Mannion, A. F., Leunig, M., & Munzinger, U. (2009). The 12-item Oxford Knee Score: cross-cultural adaptation into German and assessment of its psychometric properties in patients with osteoarthritis of the knee. Osteoarthritis and Cartilage, 17(1), 49-52. https://doi.org/10.1016/j.joca.2008.05.017
Naal FD, et al. The 12-item Oxford Knee Score: Cross-cultural Adaptation Into German and Assessment of Its Psychometric Properties in Patients With Osteoarthritis of the Knee. Osteoarthr Cartil. 2009;17(1):49-52. PubMed PMID: 18602843.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The 12-item Oxford Knee Score: cross-cultural adaptation into German and assessment of its psychometric properties in patients with osteoarthritis of the knee. AU - Naal,F D, AU - Impellizzeri,F M, AU - Sieverding,M, AU - Loibl,M, AU - von Knoch,F, AU - Mannion,A F, AU - Leunig,M, AU - Munzinger,U, Y1 - 2008/07/07/ PY - 2008/03/03/received PY - 2008/05/23/accepted PY - 2008/7/8/entrez PY - 2008/7/8/pubmed PY - 2009/5/15/medline SP - 49 EP - 52 JF - Osteoarthritis and cartilage JO - Osteoarthr. Cartil. VL - 17 IS - 1 N2 - OBJECTIVE: To cross-culturally adapt and validate the Oxford Knee Score (OKS) for use in German-speaking patients with osteoarthritis of the knee. METHODS: After the cross-cultural adaptation (OKS-D), the following metric properties of the questionnaire were assessed in 100 consecutive patients (mean age 66.5 years, 61 women) undergoing total knee replacement: feasibility (percentage of fully completed questionnaires), reliability (Intraclass Correlation Coefficients [ICC] and Bland and Altman's limits of agreement), and construct validity (correlation with the Western Ontario and McMaster Universities Index [WOMAC], Knee Society Score [KSS], Activities of Daily Living Scale [ADLS], and Short Form 12 [SF-12]), floor and ceiling effects, and internal consistency (Cronbach's Alpha, CA). RESULTS: We received 91.9% fully completed questionnaires. Reliability of the OKS-D was excellent (ICC 0.91). Bland and Altman's limits of agreement revealed no significant bias (-0.2) and a random error of 6.2. Correlation coefficients with the other questionnaires ranged from -0.22 (SF-12 Mental Component Scale [MCS]) to -0.77 (ADLS). We observed no floor or ceiling effects. The CA was 0.83. CONCLUSIONS: The German version of the OKS is a reliable and valid measure for the self-assessment of pain and function in German-speaking patients with osteoarthritis of the knee. SN - 1522-9653 UR - https://www.unboundmedicine.com/medline/citation/18602843/The_12_item_Oxford_Knee_Score:_cross_cultural_adaptation_into_German_and_assessment_of_its_psychometric_properties_in_patients_with_osteoarthritis_of_the_knee_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1063-4584(08)00177-5 DB - PRIME DP - Unbound Medicine ER -