title: Atlantoaxial instability secondary to rheumatoid arthritis.
abstract: Multiple elements contribute to the stability of the anterior C1-C2 articulation, making this region subject to pathologies including trauma, inflammation, infection, and congenital deformities. C1-C2 instability places a patient at risk for significant neurologic compromise. Radiologic imaging plays a fundamental role in diagnosing atlantoaxial instability, indicating etiology, showing details of associated abnormalities, and providing information for planning treatment.
authors.affiliation: Stritch School of Medicine, Maywood, IL, USA.
authors.forename: Vincent
authors.initials: V
authors.lastname: Timpone
authors.forename: Laurie
authors.initials: L
authors.lastname: Lomasney
authors.forename: Terrence C
authors.initials: TC
authors.lastname: Demos
authors.forename: Renee
authors.initials: R
authors.lastname: Woods
authors.forename: Anthony
authors.initials: A
authors.lastname: Rinella
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications*; D001268:Atlanto-Axial Joint; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000000981:diagnostic imaging* / Q000209:etiology*; D008875:Middle Aged; D011859:Radiography