Traumatic lower-limb ischemia: an unusual acute presentation of femoral bony exostosis

The current observation reports a traumatic lower-limb ischemia due to an unusual mechanism, associating a bony exostosis and an open fracture of the femoral lower end. The exostosis was removed critically, allowing the artery to resume its modal anatomical location with no thrombosis or dissection. Femoral bony exostosis is rare. The usual presentation is subacute or chronic, leading to the emergence of pseudoaneurysms, and subsequently thrombosis.