Avascular Necrosis of the Talus
Avascular necrosis of the talus (AVN) refers to a cutoff of the blood supply to the talus, which is a bone of the ankle. It typically results from a fracture in the area that damages the blood vessels. When AVN takes place, the bone may soften and begin to break down. If the blood flow is not restored, arthritis will often develop, severe pain occurs and joint function is reduced.
There are several surgical options available to treat AVN. Depending upon the progression of the condition, your doctor may consider ankle fusion, decompression of the talus, a muscle flap to restore blood flow or a bone graft.