28/01/2026
SACRUM AP VIEW🔰:
•Sacrum AP (Anteroposterior) view is a radiographic projection used to examine the sacrum and its connections, such as the sacroiliac (SI) joints and the L5/S1 articulation...
•It is commonly ordered to evaluate trauma, fractures, or degenerative changes...
POSITIONING🔰:
•The patient lies flat on their back (supine) with legs extended and arms at their sides...
•A 15° cephalic (upward) angle is used. This angle is necessary because the sacrum naturally curves; the tilt allows the X-ray beam to pass perpendicularly through the bone for a clearer, non-foreshortened image...
•The beam is centered on the midsagittal plane, midway between the anterior superior iliac spine (ASIS) and the symphysis p***s...