MSK: Shoulder Flashcards
One of the most common problem in the shoulder d/t impingement
Supraspinatus Tendon
Innervation of GH ligaments
Branches of posterior cord
Suprascapular
Axillary
Lateral pectoral
Most important ligament in the GH joint and is damaged d/t anterior dislocation
Inferior GH jt.
Primary support of AC jt.
Control the vertical motion of clavicle
First lig. injured when the joint is stressed. – Step Deformity
Coracoclavicular lig.
70% of rotator cuff tears are associated with this type of acromion
Type 3 - Hooked (39%)
Types of AC jt.
Type 1 -Flat (17%)
Type 2 –Curved (43%)
Type 3 -Hooked (39%)
Type 4 –Convex/Upturned (1%)
Innervation of AC jt.
Branches of suprascapular and lateral
pectoral nerve
Main lig. for maintaining integrity of SC jt.
Rhomboid / Costoclavicular ligament
Innervation of SC jt.
Ant. supraclavicular nerve & nerve to subclavius
A stable ______ enables the rest of the shoulder to function correctly
Scapula
Phase 1 of Scapulohumeral Rhythm
Humerus: 30 abd
Scapula: Min movement (setting phase)
Clavicle: 0-5 elevation
Phase 2 of Scapulohumeral Rhythm
Humerus: 40 abd
Scapula: 20 rot, min protraction or elevation
Clavicle: 15 elevation
Phase 3 of Scapulohumeral Rhythm
Humerus: 60 abd, 90 lat rot
Scapula: 30 rot
Clavicle: 30-50 post rot, up to 15 elev
Glenohumeral painful arc
45-60 to 120
Acromioclavicular painful arc
170 - 180
