KINESIOL 3K03 Lecture Notes - Lecture 14: Glenoid Labrum, Bankart Lesion, Rotator Cuff Tear
21 Sep 2016
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Document Summary
Ball and socket, huge mismatch of surface area. Larger muscles that can pull it out lat dorsi and pec major can influence the movement and stability of humerus. What is instability: a continuum/spectrum how well fit are two ends of bones together. Stable: everything"s matched up and moving the way it should. Far end of spectrum: dislocation, humerus is not in glenoid at all, complete disassociation and unstable. In between: subuxation, where humerus may be sitting forward / shifted / off, not completely right: tubs and ambri. Unilatearl (one shoulder involved: usually one direction its heaviest into. Multidirectional not specific to one part of capsule, just loose, can dislocate or sublux. Bilateral: for congenitally loose people, it happens on both sides, not traumatically induced they just have little passive constraint and usually is on both sides: for sport-adapted loosening of shoulder it"s usually not bilateral.
