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. 2018 Jan-Mar;17(1):3-5.
doi: 10.4103/1450-1147.222289.

Treatment Response Evaluation using Yttrium-90 in Patients with Rheumatoid Arthritis of Knee Joint

Jong Min Kim  1 , Wi Song Kim  1 , Yong Pak  1
Affiliations

Treatment Response Evaluation using Yttrium-90 in Patients with Rheumatoid Arthritis of Knee Joint

Jong Min Kim et al. World J Nucl Med. 2018 Jan-Mar.

Abstract

For radiosynovectomy, we have measured the retention time of yttrium-90 (90Y) hydroxyapatite (particle size 1-10 μm) within the knee joint space and evaluated the treatment responses in knees with rheumatoid arthritis. Radioactive measurements in the region of knee after injection of 90Y hydroxyapatite into the joint space were made with a single prove system designed to monitor radioactivity and showed retention of 90Y in the knee ranged 76.6% ±5.4% after 4 days of injection. The clinical improvements in rheumatoid arthritis of knee joint with steinbroker Stages I and II were increased as time goes by, the improvement ratio is in 72% at 6th months and 76% at 12th months after injection of 90Y 185 MBq (5 mCi) per joint.

Keywords: Knee joint; radiosynovectomy; yttrium-90 hydroxyapatite.

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Conflict of interest statement

There are no conflicts of interest.

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