SCAPULAR SPINE Flashcards
PP: Supine; scapular body // (horizontal) to IR; head turned away from side of interest (prevent superimposition)
Funke: use of 15o radiolucent wedge for patient with small breast (angle the shoulder caudally)
Prevent clavicular superimpostion
RP: Scapular spine (posterosuperior region of shoulder)
CR: 45o caudad; 35o caudad (for obese and round-shouldered patients)
SS: Scapular spine in profile and free of superimposition
LAQUERRIERE-PEIRQUIN METHOD
TANGENTIAL PROJECTION
PP:
Prone: arms along sides; head rested on chin/cheek of affected side; hand supinated; scapular // to IR
Upright: back rested against the end of table; IR placed 45o from table (wedge support)
RP: Scapular spine
CR: 45o cephalad (prone); 45o posteroinferiorly (upright; increased SID recommended because of increased OID)
SS: Scapular spine in profile and free of superimposition of scapular body
TANGENTIAL PROJECTION
PP:
Prone: arms along sides; head rested on chin/cheek of affected side; arm in extreme internal rotation; elbow flexed; hand at the back; IR center 1 in. inferior to coracoid process
RP: Head of humerus
CR: ┴
SS: tangential image of the insertion of teres minor
This position rotates the humeral head so that the greater tubercle is brought anteriorly
BLACKETT-HEALY METHOD
PA PROJECTION
Teres Minor Insertion
PP: Supine; arms along sides; unaffected shoulder elevated 15o with sandbag; abduct the affected arm; elbow flexed; hand pronated (arm rotated internally)
RP: Shoulder joints
CR: ┴
SS: image of the subscapularis insertion at the lesser tubercle
BLACKETT-HEALY METHOD
AP PROJECTION
Subscapularis Insertion
PP: Supine; affected arm at the side; arm in external rotation (to open the subacromial space); arm rotated in neutral position & in complete internal rotation (allow full evaluation of humeral head)
RP: Coracoid process
CR: 25o caudad
SS: Profile the greater tubercle, site of infraspinatus tendon and opens subacromial space
AP AXIAL PROJECTION
Infraspinatus Insertion
