What specific anatomy is best demonstrated on the AP oblique projection of the lumbar spine if the patient is positioned in a 45-degree RPO position?

Question

Quizplus · Accepted Answer

When the patient is positioned in a 45-degree RPO position for an AP oblique projection of the lumbar spine, the right zygapophyseal joints are best demonstrated. This is because the zygapophyseal (facet) joints are located on the posterior aspect of the vertebrae and the oblique position helps to open up the joint spaces on the side closer to the image receptor.

What Specific Anatomy Is Best Demonstrated on the AP Oblique