32 cases of hemarthrosis observed in 26 patients suffering from articular chondrocalcinosis are used as a basis for a review of the principal clinical anc paraclinical findings. Special mention is made of the fact that hemarthrosis occurs in the shoulder much less rarely than has been classically reported. The diagnostic value of finding microcristals of calcium pyrophosphate in hemorrhagic fluid is also emphasized. In addition to standard treatment, isotopic synoviortheses is shown to be effective for treatment of recurrent hemarthrosis. After an average of 3.3 years of follow-up, this treatment, although lacking certain analgesic effect, frequently leads to lasting cessation of the hemarthrosis, more often it seems, in the shoulder than in the knee.
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