HUMERUS

Question 1

PP: Erect/seated-upright (more comfortable); arm abducted slightly; hand supinated; humeral epicondyles // to IR
RP: Midshaft
CR: ┴
SS: Humeral head & greater tubercle in profile

Answer 1

AP PROJECTION
Upright

Question 2

PP: Erect/seated-upright (more comfortable); arm rotated internally; elbow flexed approximately 90o; palmar aspect of hand against hip; humeral epicondyles ┴ to IR
RP: Midshaft
CR: ┴
SS: Lesser tubercle in profile; greater tubercle superimposed over humeral head

Answer 2

LATERAL PROJECTION
Lateromedial Upright

Question 3

PP: RAO/LAO; patient’s hand holding the broken arm
RP: Midshaft
CR: ┴
SS: Lesser tubercle in profile; greater tubercle superimposed over humeral head
ER: For patients with broken humerus

Answer 3

Mediolateral Upright

Question 4

PP: Supine; unaffected shoulder elevated; hand supinated; humeral epicondyles // to IR
RP: Midshaft
CR: ┴
SS: Humeral head & greater tubercle in profile

Answer 4

AP PROJECTION
Recumbent

Question 5

PP:
>Supine: arm abducted slightly; forearm rotated medially; dorsal aspect of hand against patient’s side; humeral epicondyles ┴ to IR; elbow flexed slightly (for comfort)
>Lateral Recumbent: place IR closed to axilla; elbow flexed (unless contraindicated); thumb surface of hand up
RP: Midshaft or distal humerus (lateral recumbent)
CR: ┴
SS: Distal humerus
ER (lateral recumbent): For patient with known or suspected fracture

Answer 5

LATERAL PROJECTION
Lateromedial Recumbent