Hangman’s Fracture
(Traumatic Spondylolisthesis of Axis)
(Levine and Edwards ’85, modification of Effendi ’81)
-based on transln/anguln of C2-3 on lat. x-ray
-bilat. # thru base of pars interartic.
Type 1- (most common)-no anguln, 3 mm displaced
(2A-min. transln, signif. anguln)
Type 3- (rare)-unilat. or bilat. facet dislocn in addition to # pars
*Treatment
Type 1-stable; cervical collar immobilizn x 8-12 weeks
Type 2-HTV /closed reduction
Type 3-ORIF C2-3 FUSION
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