Classic imaging findings for a Hangmans fracture of C2. The fractures plane extends from the posterior body of C2 into the posterior arch, in ths case through the pedicles. The fracture is unstable but often there is no initial cord injury since the fracture actually widens the canal. This fracture occurs with forced flexion, like that which occurs when the knot of a hangmans noose forces the chin up (hence the name).
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