{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T22:59:07Z","timestamp":1776898747333,"version":"3.51.2"},"reference-count":23,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2005,12,9]],"date-time":"2005-12-09T00:00:00Z","timestamp":1134086400000},"content-version":"vor","delay-in-days":5762,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arthritis &amp; Rheumatism"],"published-print":{"date-parts":[[1990,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Six hundred fifty outpatients with rheumatoid arthritis (RA) were evaluated and followed up during a 7\u2010year period. As part of their routine evaluation or because of neck\u2010shoulder girdle symptoms, 48% of the patients underwent routine cervical spine radiography. Sixty\u2010one RA patients (9% of the total population) had C1\u2010C2 involvement. Compared with the 589 patients with no evidence of C1\u2010C2 involvement, these 61 patients were significantly more likely to be younger, female, and seropositive, and they had significantly more nodules and erosions, as well as a longer disease duration. Based on radiographic evidence of C1\u2010C2 disease severity, 3 groups emerged. Group 1 (28 patients) had lateral mass collapse, group 2 (27 patients) had lateral facet joint sclerosis, erosion, or loss of joint space with no collapse, and group 3 (6 patients) had lateral subluxation with no bone or cartilage changes. Nine patients in group 1 had severe pain, and 25 had a nonreducible rotational tilt of the head. None of the patients in the other 2 groups had either of these signs or symptoms. Moreover, patients in group 1 were more likely to have other C1\u2010C2 or subaxial subluxations and were more likely to have myelopathy. C1\u2010C2 lateral facet joint involvement is common in RA, correlates with disease severity generally and specifically with that in the cervical spine, and, when severe, causes nonreducible rotational tilt of the patient's head.<\/jats:p>","DOI":"10.1002\/art.1780330304","type":"journal-article","created":{"date-parts":[[2007,2,14]],"date-time":"2007-02-14T23:30:36Z","timestamp":1171495836000},"page":"325-329","source":"Crossref","is-referenced-by-count":51,"title":["The spectrum of atlanto axial facet joint involvement in rheumatoid arthritis"],"prefix":"10.1002","volume":"33","author":[{"given":"James T.","family":"Halla","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"suffix":"Jr","given":"Joe G.","family":"Hardin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,12,9]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1002\/art.1780251107"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1136\/ard.37.6.525"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1259\/0007-1285-51-612-963"},{"key":"e_1_2_1_5_2","first-page":"979","article-title":"The lateral atlanto\u2010axial joint involvement in rheumatoid arthritis: report of two cases and review.","volume":"55","author":"Seignon B","year":"1979","journal-title":"Semin Hop Paris"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/art.1780251117"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-197759010-00005"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1136\/ard.43.2.341"},{"key":"e_1_2_1_9_2","first-page":"217","article-title":"Atlantoaxial facet joint arthritis in the rheumatoid cervical spine: a panoramic zonography study.","volume":"15","author":"Santavirta S","year":"1988","journal-title":"J Rheumatol"},{"issue":"4","key":"e_1_2_1_10_2","first-page":"S79","article-title":"The spectrum of atlanto\u2010axial (C1\u2010C2) facet joint involvement in rheumatoid arthritis (abstract).","volume":"31","author":"Halla JT","year":"1988","journal-title":"Arthritis Rheum"},{"key":"e_1_2_1_11_2","doi-asserted-by":"publisher","DOI":"10.3171\/jns.1985.63.4.0500"},{"key":"e_1_2_1_12_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.137.3.7444048"},{"key":"e_1_2_1_13_2","doi-asserted-by":"publisher","DOI":"10.1002\/art.1780310302"},{"key":"e_1_2_1_14_2","doi-asserted-by":"publisher","DOI":"10.1259\/0007-1285-21-244-171"},{"key":"e_1_2_1_15_2","doi-asserted-by":"publisher","DOI":"10.1001\/archinte.143.3.471"},{"key":"e_1_2_1_16_2","doi-asserted-by":"publisher","DOI":"10.1002\/art.1780300514"},{"key":"e_1_2_1_17_2","first-page":"1722","article-title":"Involvement of the craniocervical junction in Reiter's syndrome.","volume":"15","author":"Halla JT","year":"1988","journal-title":"J Rheumatol"},{"key":"e_1_2_1_18_2","doi-asserted-by":"publisher","DOI":"10.1002\/art.1780300421"},{"key":"e_1_2_1_19_2","doi-asserted-by":"publisher","DOI":"10.3171\/jns.1980.53.6.0841"},{"key":"e_1_2_1_20_2","doi-asserted-by":"publisher","DOI":"10.1002\/art.1780270105"},{"key":"e_1_2_1_21_2","first-page":"42","article-title":"Rheumatoid cervical myelopathy: evaluation by computerized tomography with multiplanar reconstruction.","volume":"10","author":"Kaufman RL","year":"1983","journal-title":"J Rheumatol"},{"key":"e_1_2_1_22_2","doi-asserted-by":"publisher","DOI":"10.1002\/art.1780300604"},{"key":"e_1_2_1_23_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.165.1.3628763"},{"key":"e_1_2_1_24_2","first-page":"890","article-title":"Clinical characteristics affecting survival in patients with rheumatoid arthritis undergoing cervical spine surgery: a controlled study.","volume":"16","author":"Saway PA","year":"1989","journal-title":"J Rheumatol"}],"container-title":["Arthritis &amp; 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