The Jefferson classification of atlas (C1) fractures describes the sites of fracture.
On this page:
Classification
The original Jefferson classification had descriptions without numbers 1. The types were later assigned to numbers by some authors but the order has been inconsistent 2,3. Therefore, referring to the Jefferson classification by numbers may be confusing.
posterior arch alone
anterior arch alone
both arches
lateral masses alone
lateral masses and posterior arch
The classic Jefferson fracture is a both-arch fracture.
History and etymology
The classification is named after Sir Geoffrey Jefferson (1886-1961) 3, a British neurosurgeon who first described the anatomic sites of fracture in a case series and literature review in 1919 1.
See also
The Landells system is based on the Jefferson classification. The Gehweiler classification is more commonly used in Europe.
Unable to process the form. Check for errors and try again.