Classification Description Notes
Type 1 Comminuted, impacted
Type 2 Extension of skull fracture
Type 3 Avulsion of alar ligament unstable



Dreizin, D., et al. (2014). “Multidetector CT of blunt cervical spine trauma in adults.” Radiographics 34(7): 1842-1865.

Anderson, P. A. and P. X. Montesano (1988). “Morphology and treatment of occipital condyle fractures.” Spine 13(7): 731-736.