The sacroiliac joint: anatomical study in the coronal plane and MR correlation.

The current clinical imaging technique applied to the sacroiliac joint (SIJ) is coronal Computed Tomography (CT). The aims of this study were: 1) to section the cartilage, the ligaments of the SIJ, and their relations to adjacent organs, in a coronal plane; 2) to correlate anatomical and magnetic resonance (MR) sections; 3) to extend these data in vivo. A topographic dissection of a 52 year-old female specimen was performed to identify the various components, and spatial relationships of the SIJ.