[Importance of synoviorthesis using osmic acid in the treatment of hemophilic arthropathy. Apropos of 19 cases].

While getting synovial sclerosis and articular drying, the synoviorthesis breaks the circulus vicious which comes from iterative hemarthrosis to articular destruction. With 25 cases and a follow up of 6 years, we have got 39% of good results, 35% of medium and 26% of bad ones. The therapeutic efficiency requires a certain latent time (0 to 15 days for isotopical synoviorthesis, 2 to 3 months for those ones with osmical acid.) A new synoviorthesis can be made if needed. Neither age nor radiological stage are of any influence. The radiological worsening uses to go on unchanged. The synoviorthesis should be performed at an early stage, previous to the cartilage and bone destructions.