Fig. 3.

A : Type C- or corpus-fractures : C1 fracture moves from anterior cortex dorsally or into the sacroiliac joint; C2 fracture with an unilateral involvement of the neural foramina or the spinal canal; and C3 is unstable and represents bilaterally sagittal fractures combined with a transverse leasion. B : C1 fracture of the corpus with an extension in the anterior direction; C2 and C3 bilateral fracture of the corpus with an involvement of the neural foramina which are connected by a transverse fracture. C1 arrows show the fracture development from anterior to the dorsal cortex; C2 and C3 arrows show the bilateral fracture of the corpus, the arrow in the middle shows the fracture connection by a transverse component.