RT Journal Article SR Electronic T1 CT of Facet Distraction in Flexion Injuries of the Thoracolumbar Spine: The “Naked” Facet JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 97 OP 102 VO 1 IS 1 A1 John P. O'Callaghan A1 Christopher G. Ullrich A1 Hansen A. Yuan A1 Stephen A. Kieffer YR 1980 UL http://www.ajnr.org/content/1/1/97.abstract AB Vertical distraction of the articular processes is an important sign of ligamentous disruption due to flexion injuries of the thoracolumbar spine. In addition to illustrating this finding in cross section (the “naked” facet), computed tomography in the transaxial plane allows assessment of the presence and position of fracture fragments that may encroach on the spinal canal. Image reconstruction in sagittal and coronal planes provides a clear demonstration of the degree of bony compression, facet distraction, and kyphosis associated with flexion injuries without additional patient manipulation or radiation exposure.