GLENOID CAVITY

Question 1

PP: Upright (more comfortable) or supine; RPO/LPO; body rotated 35-45o (upright)/>45o (supine) toward the affected side; scapula // to IR; arm slightly abducted; palm of hand on abdomen
RP: 2 in. medial & 2 in. inferior to superolateral border of shoulder
CR: ┴
SS: Glenoid cavity (scapulahumeral joint)

Answer 1

GRASHEY METHOD
AP OBLIQUE PROJECTION

Question 2

PP: Upright; RPO/LPO; body rotated 35-45o toward the affected side; scapula // to IR; patient hold 1 lb. weight; arm abducted 90o
RP: Level of coracoid process
CR: ┴
SS: Glenoid cavity (scapulahumeral joint)
ER: To demonstrate a loss of articular cartilage in the scapulohumeral joint

Answer 2

APPLE METHOD
AP OBLIQUE PROJECTION

Question 3

PP: Supine/seated/upright; RPO/LPO; body rotated 45o toward the affected side; elbow flexed; arm placed across the chest
RP: Scapulohumeral joint
CR: 45o caudad
SS: Glenoid cavity (scapulahumeral joint)
Humeral head
Coracoid process
Scapular head & neck
ER:
>For acute shoulder trauma
>For identifying posterior scapulohumeral dislocations
-Posterior dislocation: humeral head projected superiorly from glenoid cavity
-Anterior dislocation: humeral head projected inferiorly from glenoid cavity
>Glenoid fxs
>Hill-Sachs lesions/defect
>Soft tissue calcification

Answer 3

GARTH METHOD
AP AXIAL OBLIQUE PROJECTION