Psychometric properties of the Arabic version of the International Knee Documentation Committee subjective knee form
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Abdulelah Abumadini 1 , Saad Alfawaz 2 , Majed Albadi 2 , Ziyad Neamatallah 2 , Umar Alabasi 2 , Abdulaziz Asiri 1 , Ahmed Bogari 1 , Rawan Aldhabi 2 *
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1 Department of Physical Therapy, King Abdullah Medical Complex, Jeddah, SAUDI ARABIA2 Department of Physical Therapy, Faculty of Medical Rehabilitation Sciences, King Abdulaziz University, Jeddah, SAUDI ARABIA* Corresponding Author

Abstract

Background: The International Knee Documentation Committee (IKDC) subjective knee form is a widely used measure to assess symptoms, functional impairments, and sport activity limitations related to knee conditions.
Objectives: This study aimed to assess the psychometric properties of the Arabic version of the IKDC (IKDC-AR) in patients experiencing knee pain.
Methods: The IKDC-AR was compared to the short form 36 (SF-36) questionnaire, and the visual analog scale (VAS) using Spearman’s rank correlation coefficient to evaluate construct validity. Internal consistency was examined using Cronbach’s alpha, while test-retest reliability was analyzed using intraclass correlation coefficient (ICC2,1). Measurement precision was quantified through the standard error of measurement (SEM) and minimal detectable change (MDC).
Results: Strong correlations were observed between the IKDC-AR and SF-36 subscales reflecting similar constructs, including physical component summary and physical function (r = 0.71 and r =0.74, respectively). A moderate negative correlation with the VAS (r = -0.65) further supported construct validity. Divergent validity was confirmed by weak correlations with SF-36 subscales for the mental component summary and mental health (r =0.17 and r =0.18, respectively). The IKDC-AR demonstrated excellent internal consistency (Cronbach’s alpha = 0.92) and high test-retest reliability (ICC2,1 = 0.95). Measurement precisions was highlighted with a SEM of 3.95 and MDC of 10.95.
Conclusion: The IKDC-AR is a reliable and valid tool for evaluating knee function and symptoms in Arabic-speaking patients with knee pain. Its strong psychometric properties make it suitable for both clinical and research applications.

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Original Article

ELECTRON J GEN MED, Volume 21, Issue 6, December 2024, Article No: em615

https://doi.org/10.29333/ejgm/15712

Publication date: 11 Dec 2024

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