A lateral cervical projection with poor positioning demonstrates the articular pillars and zygapophyseal joints of one side on the patient situated anterior to those of the opposite side. How was the patient mispositioned for such a projection to be obtained?
1)The patient was rotated.
2)The midcoronal plane was not positioned perpendicular to the IR.
3)The head was tilted toward the IR.
4)The central ray was angled cephalically.
A) 1 only
B) 1 and 2 only
C) 2 and 3 only
D) 4 only

Question

Quizplus · Accepted Answer

When the patient is rotated during a lateral cervical projection, the articular pillars and zygapophyseal joints of one side will be situated anteriorly to those of the opposite side. This is the only possible explanation for this positioning error, therefore option 1 is correct. Additionally, if the midcoronal plane is not perpendicular to the IR, it can cause elongation or foreshortening of the joints and pillars, but it would not cause them to shift anteriorly or posteriorly relative to each other. Hence, option 2 is also correct. Option 3 and 4 are not relevant to lateral cervical projection.

A Lateral Cervical Projection with Poor Positioning Demonstrates the Articular