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

Figure 1

(a) Lateral radiographs of a patient with AAI. In the neutral view, the AAI (arrowhead) is 1 mm. (b) In flexion, the AAI increases to 7 mm. (c) In extension, the AAI reduces to their neutral measures [1].

(a)

(b)

(c)