"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."
"The Jefferson classification is not commonly used, unlike the Gehweiler classification, Landells classification, and AO Spine classification of upper cervical injuries, which are all in common use (c. 2022) 5,6."