Purpose: The purpose of this study was to investigate the relationship between rotator cuff tear size and pain, range of motion (ROM), and muscle strength in patients diagnosed with rotator cuff tears.
Methods: Forty-eight patients were classified int...
Purpose: The purpose of this study was to investigate the relationship between rotator cuff tear size and pain, range of motion (ROM), and muscle strength in patients diagnosed with rotator cuff tears.
Methods: Forty-eight patients were classified into three groups according to tear size: partial-thickness tear, full-thickness tear, and massive tear. Pain was assessed using the Shoulder Pain and Disability Index (SPADI), active ROM was measured with a digital goniometer, and muscle strength was evaluated using a handheld dynamometer.
Results: SPADI scores were significantly different among the three groups (p=.013), with the massive tear group reporting higher pain scores compared to the partial-thickness and full-thickness groups (p=.028 and p=.023). There were no significant differences in active ROM and muscle strength among the groups (p>.05).
Conclusion: These findings suggest that rotator cuff tear size affects pain levels but may not be directly associated with reductions in range of motion or muscle strength. Therefore, clinical evaluation of patients with rotator cuff tears should comprehensively consider not only tear size but also the patient’s pain intensity and functional performance. Additionally, treatment should prioritize reducing pain and improving functional impairments.