Disturbances of the symphysis pubis in rheumatoid arthritis: report of two cases.

We present two rheumatoid arthritis (RA) patients suffering from disturbances of the symphysis pubis. Radiography revealed one with pelvic ring disruption with symphysis pubis diastasis, and the other with osteolysis at both pubic rami and disruption of the superior aspect of the symphysis pubis. Both cases had received long-term corticosteroid therapy, including pulse therapy. We recommend reducing the corticosteroid dose to prevent disturbances of the symphysis pubis especially in RA patients on long-term steroid therapy.