[Involvement of the occipito-atlanto-axial articulation in rheumatoid arthritis].

: The authors, after reviewing the world bibliography, remember the seriousness, quoad vitam, of the atlanto-axial sub-luxation as a frequent complication of rheumatoid arthritis. They, for such reason, emphasize the importance of a precocious diagnosis, with the systematic research, in patients suffering from rheumatoid arthritis, of the clinical and radiographic signs of such a dreadful complication.