shoulder joint Flashcards
glenohumeral joint
head of humerus with glenoid fossa of scapula
synovial
ball and socket
3 degrees of freedom
more mobility than stability
motion of glenohumeral joint
flexion/extension - sagittal plane, frontal axis
Abduction/adduction - frontal plane and sagittal axis
Medial/lateral rotation, horizontal abduction/adduction - horizontal plane, vertical axis
shoulder joint ROM
Flexion - 0-180
Extension - 0-60
Abduction - 0-180
Adduction 0-120
Medial rotation - 0-70
Lateral rotation - 0-90
arthrokinematic motion
humerus is convex, glenoid fossa concave
shoulder joint flexion
girdle upward rotation and protraction
shoulder joint extension
girdle downward rotation, retraction, scapular tilt
shoulder joint abduction
girdle upward rotation
shoulder joint adduction
girdle downward rotation
shoulder joint medial rotation and horizontal adduction
girdle protraction
shoulder joint lateral rotation and horizontal abduction
girdle retraction
Glenoid labrum
fibrocartilaginous ring
attached to rim of glenoid fossa
deepens fossa to increase stability
Bursa
subdeltoid (deltoid and joint capsule) and subacromial (acromion and coracoacromial ligament)
Coracohumeral ligament
dorsal lateral side of coracoid process and greater and lesser tubercles
sternoclavicular joint characteristics
close pack - full abduction, external rotation
loose pack - 30-60 horizontal abduction, 30-60 flexion
end feel - end feel
capsular pattern - ER > Abd > IR
Shoulder joint characteristics
close pack - full abduction, external rotation
loose pack - 30-60 horizontal abduction, 30-60 flexion
end feel - firm
capsular pattern - ER > Abd > IR
