The Landells (and van Peteghem) classification of fractures of the atlas is one of the commonly used systems to describe C1 vertebral injuries.
Classification
Fractures are classified by their involvement of the C1 anterior arch, posterior arch, and/or lateral mass 1:
- type I: confined to either the anterior or posterior arch
- type II: involves both anterior and posterior arches
- type III: primarily lateral mass fracture, extending into one arch only
The classic Jefferson fracture is a type II fracture.
See also
Other classifications of atlas fractures exist:
- Gehweiler classification, including Dickman classification of transverse ligament injuries
- AO Spine classification of upper cervical injuries