A PA wrist projection obtained with the wrist in a neutral position demonstrates
1)the scaphoid in partial foreshortening.
2)the center of the lunate positioned distal to the radioulnar articulation.
3)closed CM joints.
4)alignment of the long axis of the third metacarpal and radius.
A) 1 and 3 only
B) 2 and 4 only
C) 1, 2, and 4 only
D) 1, 2, 3, and 4

Question

Quizplus · Accepted Answer

1) The scaphoid bone is partially foreshortened in a PA wrist projection as it is situated obliquely in the wrist joint.

2) The center of the lunate bone is positioned distal to the radioulnar articulation during a neutral position projection.

3) The carpometacarpal (CM) joints are closed in a PA wrist projection.

4) The long axis of the third metacarpal and radius should be aligned in a neutral position projection.

Therefore, options 1, 2, and 4 are correct, while option 3 is not correct.

A PA Wrist Projection Obtained with the Wrist in a Neutral