Cross-cultural adaptation and validation of the Romanian knee disability and osteoarthritis outcome score for joint replacement (KOOSJR)

Abstract

Aim: To perform validation of the Romanian Knee disability and Osteoarthritis Outcome Score for Joint Replacement (KOOSJR). Method: Ninety-six patients (101 knees) with advanced osteoarthritis (OA) scheduled for total knee replacement completed Romanian translations of KOOSJR and IKDC (International Knee Documentation Committeesubjective knee form) and Euroqol EQ-5D-5 L, and the treating physician completed the original knee society score (KSS). Results: Average age was 66.4 (range 50-83) years and male to female ratio 1:3.76. There was moderate correlation between the test-retest (average 4 days) KOOSJR (r = 0.618, n = 45) and IKDC (r = − 0.671, n = 99), weak between KOOSJR and EQ-5D-5 L Index (r = − 0.431, n = 100) and VAS (r = − 0.364, n = 99) and very weak to KSS score (r = − 0.133, n = 98) and function (r = − 0.072, n = 97) For the first KOOSJR, Cronbach's alpha was 0.816 and intraclass correlation coefficient (ICC) 0.816 (95% CI 0.755-0.866) for average measures. For the retest, Cronbach's alpha was 0.841 (95% CI 0.760-0.903) for averages. Conclusion: The Romanian Knee disability and Osteoarthritis Outcome Score for Joint Replacement (KOOSJR) is a valid, reliable, consistent and reproducible clinical score for patients with OA requiring arthroplasty.

Cross‐cultural adaptation and validation of the KOOS, JR questionnaire for assessing knee osteoarthritis in Spanish‐speaking patients

“…The present S-KOOS, JR included only patients within a public institution of a low-resource and income district from Chile and had a 100% of acceptability when answered, without floor effect and low ceiling effect (< 15%), demonstrating it is a valid tool for public health practise. The proven internal validity for the S-KOOS, JR was excellent, even higher than the original questionnaire (Cronbach's α = 0.927 versus Person Separation Index (PSI) = 0.840) [20] and other KOOS, JR cross-cultural adaptation and validation (Romanian) (Cronbach's α = 0.816 of the first test) [11]. It must be highlighted that the original investigation used the PSI for assessing internal validity, which, even though it is similar to Cronbach's α, might be a reason for the differences encountered.…”

“…The proven internal validity for the S‐KOOS, JR was excellent, even higher than the original questionnaire (Cronbach’s α = 0.927 versus Person Separation Index (PSI) = 0.840) [20] and other KOOS, JR cross‐cultural adaptation and validation (Romanian) (Cronbach’s α = 0.816 of the first test) [11]. It must be highlighted that the original investigation used the PSI for assessing internal validity, which, even though it is similar to Cronbach’s α , might be a reason for the differences encountered.…”

Cross-cultural Adaptation and Validation of the KOOS, JR Questionnaire for Assessing Knee Osteoarthritis in Spanish-speaking Patients

“…The reproducibility of the S-KOOS, JR, was also very high and considered almost perfect according to Landis et al [13]. It was higher than the single and average interclass correlation coe cient (ICC) found in the Romanian version of the KOOS, JR (MEMC = 0.852 versus ICC 0.387 for single and 0.816 for average measures, respectively) [15].…”

At the Edge of Orthopaedics: Initial Experience with Transarterial Periarticular Embolization for Knee Osteoarthritis in a Romanian Population

“…The knee injury and osteoarthritis outcome score (KOOS) [ 19 ] was used to analyze subjective outcomes. Patients were also asked to fill out the Western Ontario and McMaster Universities’ arthritis index (WOMAC) [ 20 ] at every follow-up visit.…”