Anderson and D'Alonzo classification of C2 odontoid fractures (diagrams)
Discussion:
-
type I
- (usually) oblique fracture of the upper part of the odontoid peg
- above the level of the transverse band of the cruciform ligament
-
type II
- transverse fracture at the base of the odontoid
- below the level of the transverse band of the cruciform ligament
- type IIa
- subtype of type II fractures with comminution at the odontoid base
- type III
- through the odontoid and into the lateral masses of C2
Loading...