Shoulder Girdle Flashcards
AP Shoulder (internal and external rotation) Positioning and Image Eval
- Pt back against IR, centered at 1” below the coracoid of the affected side
- internally or externally rotate forearm (based on protocol)
- Eval:
- all of superior scapula & proximal humerus
- external rotation shows greater tubercle in lateral profile
- internal rotation shows lesser tubercle in medial profile
Inferosuperior Axial Shoulder (Lawrence Method)
Positioning
- Pt laying down, abduct the arm to 90 degrees
- externally rotate arm
- place vertical IR behind shoulder
- angle horizontal tube 15-30 degrees, passing through the AC joint
- more arm abduction = more angle
Inferosuperior Axial Shoulder (Lawrence Method)
Image Eval
- glenohumeral joint with slight overlap
- lesser tubercle in anterior profile
AP Oblique Shoulder (Grashey Method)
Positioning and Image Eval
- RPO or LPO position, 35-45 degrees
- scapula should be parallel with IR
- IR centered at 2” medial and 2” inferior to superolateral border of shoulder
- should show open glenohumeral joint space
- glenoid cavity in profile
PA Oblique Scapula (Y View)
Positioning and Image Eval
- PA Obl done to reduce magnification
- place pt in 45-60 degrees LAO/RAO, affected side toward the IR
- Merrill’s: center IR at scapulohumeral joint
- practical: mid scapula (level of T3-T4)
- Eval:
- scapular body free of superimposition of thoracic cage
- acromion, coracoid, and scapula form “Y”
AP Acromioclavicular Joints
Positioning and Image Eval
- SID at 72”
- Pt MCP parallel to IR
- affix weights on each wrist, and have pt relax
- center IR at MSP at level of AC joints (for bilateral)
- Image Eval:
- both or one AC joint with appropriate density
AP Clavicle
Positioning and Image Eval
- MCP parallel to IR
- arms at sides
- center IR to midclavicle
- expose on expiration
- must show entire clavicle
AP Axial Clavicle
Positioning and Image Eval
-lordotic position PLUS 0-15 degree cephalic angle OR
-MCP parallel to IR with 15-30 degree angle
*the bigger the pt, the bigger the angle
-center IR at midclavicle
Eval:
-lateral end above ribs and scapula
-clavicle more horizontally placed
PA Axial Clavicle
Positioning and Image Eval
-pt facing IR with MCP parallel
-with a 15-30 degree caudad* angle
Eval is same as AP Axial
AP Scapula
Positioning and Image Eval
-abduct arm to 90 degrees with body
-center IR 2” inferior to coracoid
Image Eval:
-lateral portion of scapula out of rib and lung field
Lateral Scapula
Positioning and Image Eval
- very similar to PA Oblique Scapular Y view
- place affected arm either on abdomen, back, or above head to draw humerus out of FOV
