Computed tomography of the bony pelvis: a protocol for multiplanar imaging. Part I: Normal anatomy.

The normal gross and computed tomographic anatomy of the bony pelvis is briefly reviewed, with special reference to the bony masses of greatest concern to a surgeon. Normal transverse computed tomography (CT) images are shown. I describe a unique, comprehensive protocol for multiplanar CT reformation of the osseous pelvis. This algorithm provides "direct-view" images that are considerably more reliable than "mental reformatting" from transverse images alone. The procedure is of particular value in assessing fractures and dislocations occurring separately or together.