ArticleJournal of hand and microsurgery2025
Linguistic validation and cultural adaptation of Tamil version of oxford shoulder score.
Article in Journal of hand and microsurgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: The Oxford Shoulder Score (OSS) is a well-established and extensively utilized shoulder score translated into Western and Asian languages for use in respective countries. Our study aimed to translate, cross-culturally adapt, and psychometrically validate the OSS in the Tamil language community. Methods: The translation and cross-cultural adaptation were conducted according to previously established standards. We recruited 61 patients with degenerative or inflammatory shoulder pain presenting to a tertiary care hospital between January-August 2021. Patients were evaluated using the Tamil-OSS (OSS-T) and Constant-Murley scores (CMS). We assessed the understanding, acceptability, reproducibility, and reliability of the OSS-T. In addition, we evaluated the intra-observer and inter-observer reproducibility. We also evaluated the correlation of the OSS-T with another validated score namely the CMS. Results: The mean age of the patient included in the study was 43 (±12) years. Patients took an average of 8 (±2) minutes to complete the OSS form. Internal Consistency of the OSS-T was strong (Cronbach's alpha = 0.98). The intraclass coefficient was 0.963 (95 % CI 0.93-0.98, p < 0.001). We noted significant interobserver reliability (r = 0.963, p < 0.001). The Tamil OSS showed a strong significant correlation with the CMS (r = 0.82, p < 0.001) and original OSS (r = 0.98, p < 0.001). The OSS-T has a high level of convergent validity with CMS (p < 0.001). The 12 included translated questions in the OSS-T scored more than 0.95 from the subject experts for inclusion based on the three-point Likert scale. Conclusion: This study indicated that the Tamil version of the OSS is a reliable and valid, self-reported questionnaire, which can be applied to patients with shoulder disorders. Furthermore, the very good psychometric properties of the OSS-T score would allow for its use in clinical practice in national and international research projects concerning Tamil-speaking patients. Level of evidence: 4.
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