© 1994 British Society for Rheumatology
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YTTRIUM SYNOVECTOMY IN HAEMOPHILIC ARTHROPATHY




*Department of Rheumatology, Alfred Hospital Commercial Road, Prahran, Melbourne 3181, Australia
Department of Haematology, Alfred Hospital Commercial Road, Prahran, Melbourne 3181, Australia
Department of Radiology Commercial Road, Prahran, Melbourne 3181, Australia
Department of Nuclear Medicine, Alfred Hospital Commercial Road, Prahran, Melbourne 3181, Australia
Between 1987 and 1991 we performed Yttrium-90 (Y-90) silicate radionuclide synovectomies on 40 joints of 20 haemophiliac patients with haemophilic arthropathy. All were male, their mean age was 31 yr and 15 of the 20 (75%) were HIV antibody positive. The number of joint bleeds and amount of factor (VIII and IX) replacement given in the 6 months pre- and and 12 months post-radionuclide synovectomy was compared. Y-90 silicate synovectomy was shown significantly to reduce both the number of joint bleeds (P<0.001) and factor usage (P<0.001) in the 6 months after the procedure, a result maintained up to 12 months. Depot methyl prednisolone was co-administered with Y-90 but thought unlikely to contribute to joint response beyond 6 months. The reduction of joint bleeds and factor usage was even more dramatic in the 6- to 12-month period post-synovectomy although this was not reflected by the P value (P<0.001). The reduction of joint bleeds and factor consumption post-synovectomy was most obvious in elbow joints, although the other joints as a group showed a significant reduction. Patients who were HIV antibody positive showed considerable improvement up to 12 months post-treatment, both in reduction of joint bleeds and as a consequence factor consumption. This improvement was seen to a lesser extent in the smaller HIV-negative group.
KEY WORDS: Yttrium synovectomy, Haemophilic arthropathy, Human immunodeficiency virus
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