An AP lumbar vertebrae projection demonstrating greater distances from the right pedicles to the spinous processes than from the left pedicles to the spinous processes
A) was obtained with the patient's right side positioned closer to the IR than the left side.
B) will also demonstrate the sacrum and coccyx rotated toward the right inlet pelvis.
C) will require the patient to be rotated toward the right side to obtain an optimal projection.
D) was obtained with the patient's legs extended.

Question

Quizplus · Accepted Answer

When the patient's right side is positioned closer to the IR than the left side, the right pedicles will appear larger and closer to the IR than the left pedicles, resulting in greater distances from the right pedicles to the spinous processes than from the left pedicles to the spinous processes. This is known as magnification distortion. The sacrum and coccyx rotation is not necessarily associated with this type of distortion, and there is no need for the patient to be rotated. The position of the legs is not relevant to this type of distortion.

An AP Lumbar Vertebrae Projection Demonstrating Greater Distances from the Right