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MR Vol.10 No.4 indexに戻る
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MODERN RHEUMATOLOGY
Vol.10 No.4 |
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Prevalence of cervical lesions in rheumatoid
arthritis: cross-sectional study on 263 patients |
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| T. Yamashita1, S. Yoshino1, M. Nagashima1, K.
Saitou1, G. Shu1, T. Matuoka1, S. Yamahatu1, K. Yamamoto
1, H. Nakamura1 |
| (1) Department of Joint Disease and Rheumatism,
Nippon Medical School, 1-5-5 Sendagi, Bunkyo-ku, Tokyo 113-8603,
Japan |
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| Abstract |
| Abstract Spinal lesions in upper and sublaxilar
cervical vertebrae were studied radiologically in 263 patients
(25 men and 238 women) with rheumatoid arthritis (RA). Their average
age was 58.9 years, and their disease duration was ranged from
6 months to 24 years (mean 13 years). Functional lateral views
of the cervical spine were made. Atlantaxial subluxation (AAS)
and vertical subluxation (VS) were evaluated as upper cervical
lesions. Subaxilar subluxation (SAS) and endplate erosion were
evaluated as subaxilar cervical lesions. One hundred and seventy-eight
(67.7%) of the patients had a cervical lesion. Upper and subaxilar
cervical abnormalities were recognized in 136 (51.7%) and 113 (43.0%)
patients, respectively. There was no linkage between upper and
subaxilar cervical lesions. While the prevalence of these lesions
increased with time, the frequency was found to be over 50% within
only 5 years from onset in patients with mutilating deformity.
This prevalence tended to be associated with disease activity. |
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| Key words |
| Key words Rheumatoid arthritis ・ Cervical
lesion ・ Atlantoaxial subluxation ・ Subaxial subluxation ・ Vertical
subluxation |
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