Radiographic view used to specifically visualize the sacroiliac joints
An anteroposterior projection of the pelvis (AP pelvis) is often sufficient to evaluate the inferior aspects of the sacroiliac joints. The Ferguson view (AP with the tube angled 25 to 40 degrees cephalad) counteracts the overlap of the sacrum with the ilium, enabling a full view of the sacroiliac joint. This view is recognized because the symphysis pubis overlaps the sacrum.
