KIN428 Lecture Notes - Lecture 8: Bankart Lesion, Axillary Vein, Axillary Nerve

• School: University of Waterloo
• Department: Kinesiology
• Course: KIN428
• Professor: Clark Dickerson

Document Summary

2015-11-17 (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Gh dislocation also a stability discussion. 45% of all dislocations (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Classified according to direction of humerus dislocation (ant, post, inf, sup) Posterior axial loading, adduct, internally rotated. Superior forward and upward force, adduct arm. Fall with arm in abduction & external rotation. Foosh injury common in older adults. Bankart lesion avulsion of labrum (at inferior ligament) Hill-sachs defect fracture of posterolateral surface of h. h. due to impact on anterior rim of glenoid. Laxity of joint 40% have recurrent dislocations. Rotator cuff tears - >40 = 30% more likely, >50 = 80% more. Nerve damage axillary nerve, up to 45% of the time. Recurrence age-related: <20 has 90% recurrence; >40 has 10- Axial loading of the adducted, internally rotated arm (severe) Fall with arm in abduction and internal rotation. Bankart lesion reverse posterior tear of labrum. Hill-sachs reverse, defet of anterior portion of humeral head.