1989
DOI: 10.1097/00007632-198911000-00003
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Magnetic Resonance Imaging of Upper Cervical Disorders in Rheumatoid Arthritis

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Cited by 33 publications
(10 citation statements)
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“…This finding has also been found by other authors (6,20) although some authors have emphasized the usefulness of these clinical parameters (that actually are very important) to diagnose this type of abnormality (5,14,16) .…”
Section: Discussionsupporting
confidence: 84%
“…This finding has also been found by other authors (6,20) although some authors have emphasized the usefulness of these clinical parameters (that actually are very important) to diagnose this type of abnormality (5,14,16) .…”
Section: Discussionsupporting
confidence: 84%
“…60 The imaging criteria for poor prognosis are PAOI shorter than 10 mm, a bone canal shorter than 13 mm, a medullary diameter shorter than 6 mm with a flexed spine, a cervicomedullary angle lower than 135°, and a medullary area smaller than 44 mm 2 . 10,31,[35][36][37] Among the patients operated on for C1-C2 instability, 39% developed subaxial subluxation, and 54% required further surgery. 61…”
Section: Prognosismentioning
confidence: 99%
“…Degenerative conditions, such as rheumatoid arthritis, cause ligament laxity and bone destruction and may as rheumatoid arthritis, progressively increased motion is often used as an indication of increasing instability, and surgical stabilization has been advocated when the ADI is Ͼ 8 mm. 4 In addition to the C1-C2 joint, the occipitoatlantal joint should be examined closely, especially for patients with degenerative disease, because a significant percentage of patients with atlantoaxial instability will also have occipitoatlantal instability. Malalignment of the occiput on C1 is best evaluated via thin-section computed tomography (CT) scan with sagittal reconstructions.…”
Section: Indicationsmentioning
confidence: 99%