Relationship between acromio humeral distance, glenohumeral internal rotation deficit and scapular dyskinesis in patients with shoulder impingement syndrome / Manar Obbaha Elsaid Elmoqadem ; Supervised Alaa Abdhakim Balbaa , Mohammed Ali Sarhan , Hatem Mohammed Elazizi

Thesis (M.Sc.) - Cairo University - Faculty of Physical Therapy - Department of Physical Therapy for Orthopaedics

Background: A loss of glenohumeral internal rotation range of motion, tightness in the posterior capsule of shoulder and scapular dysskinesis have been associated with altered kinematics of the glenohumeral as well as the scapulothoracic joint.The purpose of this study was to evaluate the association between Acromio-humeral distance (AHD), gleno-humeral internal rotation deficit GIRD), and posterior capsule tightness (PCT) and scapular dyskinesis ) typeII ( Methods: Forty impingement patients with age ranged from 25 to 45 years old, participated in this study,They were evaluated by ultrasonography for acromio-humeral distance(AHD), Inclinometer for gleno-humeral internal rotation deficit(GIRD), tape measurment for Posterior capsule tightness, and clinical Assessment for dyskinesis, the relations between independent variables (GIRD, PCT, scapular dyskinesis) and dependent variable (AHD) were statistically analysed . Results of this study showed a negative significant effect of scapular dyskinesis and posterior capsule tightness (PCT) on acromio-humeral distance (AHD), the study found when PCT and scapular dyskinesis increase, the AHD decrease, positive significant relation between gleno-humeral internal rotation deficit (GIRD) and acromio-humeral distance (AHD) was found, when GIRROM decrease , AHD decrease.. Conclusion: Glenohumeral internal rotation deficit, scapular dyskinesis, and posterior capsule tightness decrease acromiohumeral distance and lead to compression of the rotator cuff and subacromial bursa in this limited space in patients with shoulder impingement syndrome

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