Logan Class of December 2011

Grade 1-Acromioclavicular ligament (normal on X-ray) Grade 2-Trapezoid ligament, coracoid ligament tear (allows separation of clavicle from acromion) SC. If fixated won't be able to rotate. Humeral Acromion joint. Glenohumeral. Ball and saucer (not ball and socket) Good: lots of motion. Bad: unstable/no joint stabilization (only soft tissue ... ................
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