Translation, cross-cultural adaptation and psychometric properties of the Urdu version of knee injury and osteoarthritis outcome score questionnaire for Pakistani population

Abstract

Background Knee injury and osteoarthritis outcome score questionnaire is a widely used tool for measuring short and long-term patient-relevant outcomes following knee injury. KOOS is neither translated nor examined for psychometric properties before. Therefore, the aim of this study was to translate, culturally adapt and check the psychometric properties of the KOOS in Urdu. Methodology The translation and cultural adaptation was performed according to pre-defined guidelines. A total of 117 participants (54 males and 63 females) were recruited. The study had two steps: 1) Translation and cultural adaptation 2) Reliability and validity testing. The reliability (test-retest and internal consistency at (95% confidence interval) as well as the validity (Convergent validity) of final Urdu version of KOOS was tested. Results For all five domains, the KOOS Urdu version (KOOS-U) has demonstrated high test-retest reliability ICC = 0.90–0.96(CI = 95%). For all domains, the internal consistency was determined to be excellent (α = 0.82–0.96). There were no floor or ceiling impacts noted. Convergent validity was found to be good, as measured by Pearson’s correlation coefficient. The findings revealed a strong negative association between the KOOS-U (QOL and pain) and the NPRS. And there was a low to high positive correlation between five KOOS-U domains and all SF-12 domains, i.e., there was a significant positive correlation between the pain domains of both KOOS and SF-12 with the r = 0.87(p < 0.05). Conclusion The Urdu version of KOOS is a valid, reliable, and responsive instrument to assess functional disability of patients with Knee Osteoarthritis with excellent psychometric properties.

Efficacy of Mulligan joint mobilizations and trunk stabilization exercises versus isometric knee strengthening in the management of knee osteoarthritis: a randomized controlled trial

“…It was gradually increased to two sets in the third week, followed by three sets until the end of the intervention. [ 22 , 23 ].…”

“…They were instructed to squeeze the quadricep muscles to their maximum before lifting the foot off the floor. They were further taught to slowly lift the leg 4 inches above the plinth and hold this position for 10 s [ 22 , 23 ].…”

Psychometric Analysis of the questionnaires for the assessment of lower limbs available in Italian version: a systematic review

“…SF-36 were the most used questionnaire to evaluate the Construct validity of the Lysholm Score and IKDC speci cally in the Lysholm Score Spanish (90), Turkish (82) and Indonesian version (91) and for IKDC, in the Italian (34), Thai (92) and Chinese (93) versions. Finally Only three of the published versions of KOOS made the study of validity criterion (30,94,95), but the heterogeneity of the tools used limits the possibility of being able to compare the results between the Italian (30), Urdu (94) and Brazilian -Portuguese (95) versions.…”

Effectiveness of Diacerein in Primary Knee Osteoarthritis

“…Local data has revealed that around 25% of the rural population is accompanying primary KOA. 3 The incidence of KOA in the developed countries is estimated to be between 18-25% among male population while it reaches between 24-40% among females beyond the age of 50 years. 4 All parts of the knee can be affected but mostly medial compartment is involved because during walking repeatedly varus movements causes increased stress on medial compartment causing degenerative changes in arthritis patients.…”