Columns

 

Classification

Anterior

Middle

Posterior

Notes

Anterior Column Compression None None  
2-column burst Compression Compression None  
3-column burst Compression Compression Disruption Including facet joint widening
Flexion teardrop Compression None or compression None Results from shearing compressive force
Flexion distraction Compression Compression or distraction Distraction  
Chance Distraction Distraction Distraction  
Hyperextension (DISH) Distraction None or distraction None or distraction  
Extension teardrop Distraction None None Annular ligament avulsion, smaller than flexion teardrop

-Courtesy of Quynh Nguyen, PA, University of Washington