• Horia Haragus, Bogdan Deleanu, Radu Prejbeanu, Bogdan Timar, Codrina Levai, and Dinu Vermesan.
• Department of Orthopedics and Trauma, 'Victor Babes' University of Medicine and Pharmacy, 2 Eftimie Murgu Square, Timisoara, Romania.
• Int J Qual Health Care. 2019 May 1; 31 (4): 307-311.

ObjectivePerform translation, cultural adaptation and psychometric testing of the Romanian translation of the Hip disability and Osteoarthritis Outcome Score for Joint Replacement (HOOS_JR).DesignAssess construct validity, reliability, internal consistency and reproducibility.SettingAdults with chronic hip disability prior or at a minimum of 3 months after surgery.ParticipantsNinety-six patients (22 bilateral) with hip osteoarthritis or who had previous hip replacement or osteosynthesis for a fracture of the trochanteric region.InterventionComplete the HOOS_JR together with the Oxford Hip Score (OHS_RO), Harris Hip Score (HHS) and Euroqol EQ-5D. 57 patients repeated the HOOS_JR after 2 days.Main Outcome MeasureConvergent validity using Spearmans's correlation coefficient; Cronbach's alpha coefficient, intraclass correlation coefficient (ICC, two-way mixed effects model) and inter-item correlation matrix and test-retest assessment after 2 days.ResultsThe questionnaire had a high degree of reliability with a Cronbach's α of 0.923 at the initial completion and 0.924 at the second testing. The ICC was 0.923 for average measures for the first form and 0.910 for the second form. The two results were strongly, positively and significantly correlated (rs = 0.859; P < 0.001). The Romanian HOOS_JR strongly, significantly and positively correlated with the OHS_RO (rs = -0.880 initial and rs = -0.803 s; P < 0.001) and HHS (rs = -0.731 initial and rs = -0.654 s; P < 0.001) and moderately, significantly and positively correlated with the EQ-5D Index (rs = -0.580 initial and rs = -0.542 s; P < 0.001) and VAS (rs = -0.500 initial and rs = -0.690 s; P < 0.001).ConclusionsThe translated HOOS_JR is a reliable, reproducible and valid measure of function in patients with chronic hip disability.© The Author(s) 2018. Published by Oxford University Press in association with the International Society for Quality in Health Care. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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