OBJECTIVE: To study the pathogenetic mechanisms responsible for and prevalence of stable atlantoaxial subluxation (AAS). METHODS: Lateral view cervical spine radiographs during flexion and extension were studied in 262 patients with rheumatoid arthritis (RA). RESULTS: AAS was found in 130 patients, 42 (32%) of whom had a stable deformity; in a population based subseries, stable AAS was seen in 16% of the patients with ASS. Atlantoaxial impaction (AAI) was diagnosed in 98 cases and in 37 (88%) of the 42 patients with stable AAS. CONCLUSION: The main cause of the spontaneous stabilization and occasional ankylosis of the atlantoaxial area is the development of erosions and collapse in the lateral facet joints leading to AAI.
OBJECTIVE: To study the pathogenetic mechanisms responsible for and prevalence of stable atlantoaxial subluxation (AAS). METHODS: Lateral view cervical spine radiographs during flexion and extension were studied in 262 patients with rheumatoid arthritis (RA). RESULTS:AAS was found in 130 patients, 42 (32%) of whom had a stable deformity; in a population based subseries, stable AAS was seen in 16% of the patients with ASS. Atlantoaxial impaction (AAI) was diagnosed in 98 cases and in 37 (88%) of the 42 patients with stable AAS. CONCLUSION: The main cause of the spontaneous stabilization and occasional ankylosis of the atlantoaxial area is the development of erosions and collapse in the lateral facet joints leading to AAI.
Authors: I C van Eijk; M M J Nielen; R M van Soesbergen; H L Hamburger; P J S M Kerstens; B A C Dijkmans; D van Schaardenburg Journal: Ann Rheum Dis Date: 2006-07 Impact factor: 19.103
Authors: N Magarelli; F Simone; R Amelia; A Leone; S Bosello; G D'Antona; A Zoli; G Ferraccioli; L Bonomo Journal: Radiol Med Date: 2010-07-31 Impact factor: 3.469
Authors: Carolin Meyer; Jan Bredow; Elisa Heising; Peer Eysel; Lars Peter Müller; Gregor Stein Journal: Biomed Res Int Date: 2017-10-18 Impact factor: 3.411