A radiograph of the PA scaphoid projection reveals extensive superimposition of the scaphoid and adjacent carpals.Which of the following factors can lead to this problem?

Question

Quizplus · Accepted Answer

Insufficient ulnar deviation can lead to superimposition of the scaphoid and adjacent carpals as the scaphoid is obscured by the other carpals. Elevation of the hand and wrist also affects the angle of the radiograph but is not as directly related to the superimposition of structures seen in this particular projection. Insufficient CR angle distally and slight flexion of the phalanges can also affect the image obtained but are not as directly related to the superimposition of the scaphoid and adjacent carpals as inadequate ulnar deviation.

A Radiograph of the PA Scaphoid Projection Reveals Extensive Superimposition