A radiograph of an AP axial (Taylor) "outlet" projection reveals that the obturator foramina are not symmetric.What type of positioning error is present on this radiograph?

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Quizplus · Accepted Answer

The AP axial (Taylor) "outlet" projection specifically aims to demonstrate the symmetrical appearance of the obturator foramina. If the foramina appear asymmetric, it indicates a rotational error in the positioning of the pelvis. This could be due to a number of factors, including rotation of the patient's trunk or pelvic girdle or the presence of spinal curvature. The other options, tilt of the pelvis, off-center CR, and fracture of the pubis or ischium, are less likely to be the cause of the observed asymmetry on the radiograph.

A Radiograph of an AP Axial (Taylor) "Outlet" Projection Reveals