PMID: 18409343Apr 16, 2008Paper

Effectiveness evaluation of knee joint 90Y radiosynovectomy

Przegla̧d lekarski
Leszek MiszczykZbigniew Wygoda

Abstract

Chronic knee synovitis with effusion, because of the special role of knee joint is an important therapeutic problem. This leads to searching for new treatment modalities. One of them is radiosynovectomy based on anti-proliferative and anti-inflammatory activity of ionizing radiation. It is made using 90Y mainly (high energy of beta [electrons] radiation [2.2 MeV], large average penetration in soft tissues [3.6 mm] and long physical half-life [2.7 days]). Analyzed material is comprised of 30 patients (33 treatments) suffering from proliferative synovitis of knee joint treated by radiosynovectomy using intra-articular injection of 6 mCi 90Y. In 20 cases the reason of disease was non-specific reactive arthritis, in 5 rheumatoid arthritis, in 3 villonodular synovitis, in 3 psoriasis and in 2 ulcerative colitis. Symptoms duration varied from 3 to 144 months (mean 43). A knee circumference at the treatment day varied from 33.5 cm to 49 cm (mean 41). The operation was based on knee biopsy, evacuation of exudate and delivery of 6 mCi of colloid 90Y. Follow up ranged up to 14 months (mean 4.4). Patients were examined 2 weeks, 1, 3, 6 and 12 months after treatment. During examination a knee circumference was measured, a knee mobility, te...Continue Reading

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