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Shoulder Complex

Shoulder Complex

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Shoulder Complex

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  1. Shoulder Complex Sports Medicine II SECTA

  2. Shoulder anatomy

  3. Shoulder anatomy

  4. Shoulder anatomy

  5. Shoulder anatomy

  6. Functional anatomy • Great degree of mobility with limited stability • Rotator cuff & long head of the biceps provide dynamic stability • Supraspinatus compresses the head while the other rotator cuff muscles depress the humeral head during overhead motion Integration of the capsule and rotator cuff • Muscle contractions dynamically control the capsule • The scapula stabilizing muscles and the relationship with the other joints of the shoulder complex and the glenohumeral joint is critical

  7. Functional anatomy • Scapulohumeral Rhythm • Movement of scapula relative to the humerus • Initial 30 degrees of glenohumeral abduction does not incorporate scapular motion (setting phase) • After the initial 30 degrees of abduction, there is a 2:1 ratio between glenohumeral and scapulothoracic joint motion