Shoulder Joint
Inferosuperior Axial (Lawrence) (Axillary) IR Size: 8x10 CW SID: 40'' Page #'s: 1:194,56	Positioning:   • Pt. Supine   • Head, shoulders & Elbow ~3'' above TT   • Abduct arm 90° from body   • Head turned away   • Superoinferior Axial p1:198 can also be done	CR Entrance & Angle:   • Horizontally axilla to AC joint; 15°-30° (for arm 45°-90°) medially (>abduction >CR angle)   • Collimation:   •	Eval Criteria:   • Slight SI of scapulohumeral joint   • Lesser Tubercle in profile; Lesser tubercle & coracoid pointing anteriorly   • AC joint, acromion, & acromial end of clavicle projected thru humeral head
PA Oblique RAO/LAO (''Scapular Y'') IR Size: 10x12 LW SID: 40'' Page #'s: 1:199,58	Positioning:   • Pt. Upright, if possible   • Arm slightly over midline grid   • _|_ line Superior Angle to AC joint	CR Entrance & Angle:   • _|_ Scapulohumeral Joint   • Collimation:   • 12'' x 1'' past Lat shadow Respiration:   • Suspend Best to Determine:   • Anterior (subcoracoid) dislocation of.-Humeral head inf. to Coracoid   • Posterior(subacromial) dislocation of.-Humeral Head inf. to Acromion	Eval Criteria:   • SI of humeral head on glenoid cavity   • SI of humeral shaft on scapular body   • NO SI of scapular body over bony thorax   • NO SI of Acromion & projected laterally   • Coracoid possibly SI of projected below clavicle   • Scapula in lateral profile