Traynelis classification of atlanto-occipital dissociation (diagrams)
Diagram
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normal alignment
Diagrams of the types of AOD.
Case Discussion
The Traynelis classification of atlanto-occipital dislocations describes injuries of the atlanto-occipital joint according to the displacement of the occipital condyles relative to the atlas:
- type I: anterior displacement
- type II: distraction (inferior displacement)
- type III: posterior displacement