Trauma: PelvisThe bony pelvis is made up of the ilium, ischium and pubis, which form an anatomical ring with the sacrum (Mechem, 2013). The pelvis also includes the pelvic girdle – the right and left hip bones and the tailbone. Each hip bone is made up of three bones fused together to form a single bone. The ilium is superior, the ischium is inferior and posterior, and the pubis is inferior and anterior. The hip bones meet anteriorly at the pubic symphysis, or pubic symphysis. Posteriorly, each hip bone joins the sacrum at the sacroiliac joint (McGraw-Hill). The soft tissues surrounding the pelvis are the bladder, uterus, intestine, and sacrospinous ligaments (Kalman). The visual differences in anatomy between a patient in an AP and PA projection of the pelvis are that in an AP projection everything is more clearly visible. In a PA projection of the pelvis, the sacrum and coccyx make the anatomy of interest more obscured. The projections made for the basin are the Judet method, the axial inlet and outlet projections, the Lillienfield method and an AP projection. For Judet According to this method, the acetabulum can be seen upside down or upside down. First, place the patient in a forty-five degree posterior oblique position and center for the upper or lower hip joint. Place a support at forty-five degrees below the raised side; position the arms up and to the side with the acetabulum of interest and the corresponding leg bent and under the opposite straight leg. The central radius of the inferior acetabulum is perpendicular two inches distal and two inches medial to the inferior ASIS. The central ray of the superior acetabulum is perpendicular two inches distal to the superior ASIS. Suspending breathing during exposure with sour medium......ks CitedMechem, C. (2013, March 20). Pelvic fracture in emergency medicine. In Medscape. Retrieved March 3, 2014 from http://emedicine.medscape.com/article/825869-overview#a0101 McGraw-Hill. Anatomy of bones and joints. New York City, NY: McGraw-Hill Company.Kalman, MA Radiologic Soft Tissue Shadows in the Pelvis: Another Look. Retrieved March 3, 2014, from http://www.ajronline.org/doi/pdf/10.2214/ajr. 130.3.493 Baert, AL and Sartor, K. (2006). Imaging of the hip and bony pelvis. Np: Springer. Accessed March 3, 2014, from http://books.google.com/books?id=Yj67PmOTfusC&pg=PA7&lpg=PA7&dq=how+to+position+for+the+lilienfeld+projection+of+the+pelvis&source. =bl&ots=bLZ_tT0e6t&sig=YXyxMY3m4xDkGtH-QgUPibVIoFE&hl=en&sa=X&ei=rx4UU Bontrager, KL (2014). Handbook of Radiographic Positioning and Techniques (Eighth ed., pp. 162-166). St. Loius, MO: Elsevier.