The Persian Version of Constant-murley Score in Patients with Rotator Cuff Tears: Reliability and Validity

Document Type : RESEARCH PAPER

Authors

1 Anesthesiology and Critical Care Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran

2 Health Behavior Science Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran

3 Bone and Joint Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran

4 Trauma Research Center, School of Medicine, Shiraz University of Medical Science, Shiraz, Iran

5 Laparoscopy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

10.22038/abjs.2024.73893.3453

Abstract

Objectives: Shoulder pain is a prevalent reason in orthopedic clinic patients, with rotator cuff disorders 
being the most common cause. The Constant-murley Score (CMS) questionnaire is a practical and 
reliable tool for the assessment of shoulder joint function.
Methods: The CMS questionnaire was translated into Persian and completed by 57 patients with persistent shoulder 
pain due to rotator cuff tears (case group) and 50 healthy controls. The case group refilled the questionnaire after 
7-10 days without receiving any special treatment. The reliability and validity of the questionnaire were measured 
via the test-retest method and known-groups validity with the t-test, respectively. The intraclass correlation 
coefficient (ICC) was calculated to estimate the agreement as a measure of test-retest reliability.
Results: The mean ages of the case (51.8±14.2) and control groups (52.0±10.0) were similar (P=0.94). No 
significant difference was found between the groups regarding co-existing clinical conditions (P=0.74). The mean 
CMS values of the case and control groups were 46.2 (±22.3) and 87.4 (±5.7), respectively, showing a statistically 
significant difference (P<0.001). Moreover, the ICC was 0.95.
Conclusion: The findings indicated that the Persian version of the CMS questionnaire was reliable (ICC=0.95) and 
valid (P<0.001) for the assessment of shoulder pain and functional status in the Southern Iranian population with 
rotator cuff tear disorders.
 Level of evidence: V

Keywords

Main Subjects

References

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        doi:10.22038/ABJS.2021.47205.2305.

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The Archives of Bone and Joint Surgery
Volume 13, Issue 2
February 2025
Pages 75-81

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History

  • Receive Date: 26 August 2023
  • Revise Date: 24 October 2024
  • Accept Date: 08 September 2024

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