Intraosseous arteriovenous fistulas of the extremities are rare malformations frequently associated with severe systemic hemodynamic alterations. In many cases, it is quite difficult to eliminate these anomalous vascular structures, but the possibilities for successful treatment are much greater when surgery is combined with interventional radiology. Selective embolization of the malformed vessels can be produced with a variety of agents that are injected into afferent arteries, via percutaneous puncture or through direct surgical access. The intraosseous portion of the fistula should be resected at the time of embolization or later. The authors describe the successful treatment of three patients having intraosseous arteriovenous fistulas of the upper extremities, who have had follow-up for 2 to 10 years.
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