title: Upward translocation of the dens in rheumatoid arthritis.
mesh_terms: D000208:Acute Disease; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications*; D001269:Atlanto-Occipital Joint; D001368:Axis, Cervical Vertebra; D001270:Cervical Atlas; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging; D002908:Chronic Disease; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000209:etiology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009461:Neurologic Manifestations; D014056:Tomography, X-Ray