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- Title
Scapular kinematics and pathoanatomic findings: Are there differences between symptomatic and asymptomatic shoulders?
- Authors
Ribeiro, L. P.; Tazawa, B. M. D.; Barreto, R. P. G.; Camargo, P. R.
- Abstract
Introduction: Individuals with shoulder pain commonly present changes in scapular movement and pathoanatomic alterations in the rotator cuff tendons. However, these may not be the main contributors or source of pain in the shoulder. This study compared scapular kinematics and the frequency of pathoanatomic findings across both shoulders of individuals with unilateral shoulder symptoms. Methods: One-hundred and twelve patients (38.1 ± 14.2 years) with unilateral shoulder pain completed the study. Three-dimensional scapular kinematics was measured during arm elevation. The presence of tendinopathy and partial tear of the supraspinatus and infraspinatus was evaluated using magnetic resonance imaging (MRI). A two-way ANOVA (side x angle of arm elevation) was conducted for each scapular rotation. Chi-square tests were used to compare MRI findings. A p-value <0.05 was considered significant. Results: The interactions and main effect of side for scapular internal rotation (mean difference; 95% confidence interval: 0.5°; -0.4°, 1.6°), upward rotation (-0.8°; -1.8°, 0.1°) and posterior tilt (0.3°; -0.6°,1.2°). Supraspinatus tendinopathy (~68%), infraspinatus tendinopathy (~7%), partial tear in the supraspinatus (~17%) and infraspinatus (~5%) tendons were equally present in both shoulders (p > 0.05). Discussion: Scapular movement and pathoanatomic abnormalities in the rotator cuff are similar across shoulders of individuals with unilateral shoulder pain. Process evaluation: Psychosocial aspects should be investigated to help decision-making in the management of patients with shoulder pain.
- Subjects
NETHERLANDS; SHOULDER pain; SHOULDER joint; CONFERENCES &; conventions; SCAPULA; KINEMATICS; SYMPTOMS
- Publication
Pain Practice, 2022, Vol 22, p14
- ISSN
1530-7085
- Publication type
Article
- DOI
10.1111/papr.13128