[Treatment of rheumatoid arthritis with 90yttrium. Follow up studies (author's transl)]

90Yttrium-silicate was injected into 131 knee-joints from patients with rheumatoid arthritis with stadium II-IV according to Steinbrocker. The observation period lasted until two years. After three months about 80% and after 24 months still more than 50% of the patients treated showed complete or partial remission. Side-effects as formerly observed with 198-goldpreparations did not occur. Therefore the treatment with 90Yttrium-silicate offers an alternative to surgical synovectomy.