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Cross-cultural adaptation and translation of the Constant Murley Score into Arabic

Authors
  • Maqdes, Ali
  • Hanna, Sager Samir
  • Bouhamra, Ahmed Khaled
  • Khaja, Aliaa F.
Type
Published Article
Journal
SICOT-J
Publisher
EDP Sciences
Publication Date
Oct 20, 2020
Volume
6
Identifiers
DOI: 10.1051/sicotj/2020042
PMID: 33220719
PMCID: PMC7680506
Source
PubMed Central
Keywords
Disciplines
  • Original Article
License
Green
External links

Abstract

Introduction : Shoulder pain is a major disorder of the musculoskeletal system. To the best of our knowledge, there is no documentation of an Arabic version of the shoulder disability and pain measurements. Constant Murley Score (CMS) is one of the standard questionnaires for clinical practice and research. The aim of this research centred around the evaluation of the Arabic Constant Murley Score and subsequently assessing the reliability and validity in comparison to disabilities of the arm, shoulder, and hand (DASH). Methods : Hundred and twenty five patients took part in this research. We did the internal consistency tests with Cronbach’s alpha. Intra-correlation coefficient, convergent validity, convergent construct validity, responsiveness, and floor and ceiling effects were also calculated. Results : Principal component analysis showed that the variance was 63.31% with a factor range of 0.42–0.85, which fulfils the uni-dimensionality criterion. Also, the Arabic CMS correlated negatively with the DASH score (−0.82, p  < 0.001). The Arabic version of CMS was consistent with Cronbach’s alpha of 0.74. With Inter Class Correlation Coefficient (ICC) = 0.83 it also showed a very good test-retest reliability. Conclusion : Ours is the first translation and cross-cultural adaptation of the CMS into Arabic. Important evidences of validity were tested such as uni-dimensionality, convergent validity, and internal consistency. Results demonstrate an acceptable Cronbach’s alpha of 0.74, ICC = 0.830 indicating excellent reliability and a strong correlation of the Arabic CMS with the DASH score ( r  = −0.820). Overall, the Arabic version of CMS is a good and reliable diagnostic tool for patients experiencing shoulder pain.

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