Related Experiment Video
Updated: Oct 13, 2026

Knee Arthrocentesis in Adults
Published on: February 25, 2022
Sacroiliac joint involvement in classical or definite rheumatoid arthritis
Abstract:
In 188 patients with rheumatoid arthritis 564 radiologic examinations of the sacroiliac joints were performed. Severe blurring of the joint space or ankylosis were uncommon. The involvement was related to an age > 40 years at the onset, high values of the ESR and involvement of most joint groups in the limbs and cervical spine. Sex, presence or high titres of the rheumatoid factor and antinuclear antibodies were unrelated to lesions of the sacroiliac joints. A relation to the severity of rheumatoid arthritis rather than to the immunologic condition is suggested.
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