SEARCH RESULTS FOR: Shoulder-Impingement-Syndrome

Shoulder Impingement Syndrome

Shoulder Impingement Syndrome: Signs and Symptoms Calcific deposition Abnormal shoulder morphology Static subacromial narrowing Abnormal scapular rotation and tilt Scapular winging Weakness Degenerative changes to rotator cuff tendons Weakness Dynamic subacromial narrowing Repetitive overhead activity/shoulder overuse Muscle fatigue Repetitive compression forces on subacromial space Glenohumeral instability or stiffness Authors: Janelle Wai Dalal Awwad Reviewers: M. Patrick Pankow Reza Ojaghi Usama Malik Sunawer Aujla Ryan Shields* * MD at time of publication Internal/ Posterior Impingement Compression of rotator cuff tendons between humeral head and posterosuperior glenoid edge during end stage of throwing Pain with passive extension and lateral rotation + Posterior Internal Impingement Test Instability: Laxity of glenohumera l joint Stiffness: Scapular winging with downward tilt, shoulder protraction Primary/ Structural Impingement Any anatomical abnormalities Secondary/Functional Impingement Normal anatomy with motion abnormalities Impingement of underlying rotator cuff muscle-tendon unit and inflammation of subacromial bursa Rotator Cuff Syndrome External/ Subacromial Impingement Compression of subacromial bursa and rotator cuff (i.e. supraspinatus tendon) on the anterolateral acromion and coracoacromial ligament X-Ray: Normal Ultrasound: +/- Tendinopathy, muscle atrophy Pain with overhead movement Pain at night (e.g., sleep position, gravity) Pain with lifting (e.g., weight- training, groceries) Pain (between 60°-120°) with passive shoulder abduction + Painful arc Test Pain with passive shoulder flexion + Neer’s Test Pain with passive shoulder flexion (to 90°) + internal rotation + Hawkins-Kennedy test Legend: Pathophysiology Mechanism Sign/Symptom/Lab Finding Complications First published May 27, 2018; updated Jan 11, 2024 on www.thecalgaryguide.com