Humerus

Question 1

CR: Perpendicular to the midportion of the humerus.
POSITION:
- Adjust the height of the IR to place its
upper margin about 1.5 inches above
the head of the humerus.
- Abduct the arm slightly, and supinate
the hand.
- Epicondyles should be parallel with
the IR.
STRUCTURE SHOWN: The AP projection demonstrates the entire length of the humerus. The accuracy of the position is shown by the epicondyles.

Answer 1

AP PROJECTION

Question 2

CR: Perpendicular to the mid portion of the Humerus.
POSITION:
- Internally rotate the arm, flex the elbow approximately 90 degrees, and place the patient’s anterior hand on the Hip. (1)
- Epicondyles should be parallel with
the IR.
- Rotate the forearm medially, and rest the posterior aspect of the hand against the patient’s side. (2)
STRUCTURE SHOWN: The lateral projectiondemonstrates the entire length of the humerus. A true lateral image is confirmed by superimposed epicondyles.

Answer 2

LATERAL PROJECTION (Lateromedial)