Klassifikation von Hinterkantenfrakturen von Wirbelkörpern nach Epstein et al.



Typ 1a simple separation of the entire posterior vertebral margin of the vertebral limbus  
Typ 2an avulsion fracture of some of the substance of the vertebral body, including the margin
Typ 3a more localized fracture  
Typ 4Fracture that extends both beyond the margins of the disc and the full length of the vertebral body between the end plates. The Type-IV fracture effectively displaces bone posteriorly, filling the floor of the spinal canal with a combination of reconstituted cortical and cancellous bone accompanied in part by scar formation