Diagnosis and Prevalence (1975–2010) of Sudden Death due to Atlantoaxial Subluxation in Cervical Rheumatoid Arthritis: A Literature Review

Table 2

Cervical rheumatoid myelopathy Ranawat classification [21].

Class I	Normal neurologically
Class II	Subjective weakness with hyperreflexia and dysesthesia
Class IIIa	Objective weakness with long track sign but ambulatory
Class IIIb	Objective weakness with disability to walk or feed oneself, quadriparesis