1. Lateral radiograph during inflation of a 10-mm balloon in an S2 midline sacral body fracture (same patient as in Fig 12).
Lateral radiograph during inflation of a 10-mm balloon in an S2 midline sacral body fracture (same patient as in Fig 12). Note that the dorsal cortical margin of the sacral body is well seen (black arrow). Courtesy of Frank R. Hellinger, Orlando General Hospital, Orlando, Florida.
E.M. Lyders et al. AJNR Am J Neuroradiol 2010;31:
©2010 by American Society of Neuroradiology