Hemarthrosis is a bleeding into joint spaces. It is a common feature of hemophilia.
It usually follows injury but occurs mainly in patients with a predisposition to hemorrhage such as those being treated with warfarin (or other anticoagulants) and patients with hemophilia.
It can be associated with knee joint arthroplasty.It has also been reported as a part of hemorrhagic syndrome in the Crimean-Congo Hemorrhagic Fever, suggesting a viral cause to the bleeding in a joint space.
Hemarthrosis is diagnosed ...
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