RT Journal Article
SR Electronic
T1 Pseudospread of the Atlas: False Sign of Jefferson Fracture in Young Children
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 183
OP 186
VO 4
IS 2
A1 Richard A. Suss
A1 Robert D. Zimmerman
A1 Norman E. Leeds
YR 1983
UL http://www.ajnr.org/content/4/2/183.abstract
AB Jefferson fractures are rare prior to teen-age. Three young children examined after trauma exhibited the characteristic spread appearance of the atlas, but fractures were excluded radiographically and clinically. A retrospective study demonstrated a similar appearance, termed “pseudospread,” in most children aged 3 months to 4 years, including over 90% during the second year. Pseudospread results from a discrepancy between the “neural” growth pattern of the atlas and the “somatic” pattern of the axis. An “atlas spread index” is defined and a normal range presented. When an atlas fracture is suggested by apparent lateral spread of the lateral atlas masses, computed tomography is useful to demonstrate an intact atlas ring.