What exactly is avascular nuecrosis. i have it badly so far one ankle has been fused and they don't no what to do woth the other one.my main vaulves on?

See below: It is death of the bone usually due to trauma. If you are a football or baseball fan this is the condition that ended bo jackson's sports career.

Dead bone: Avascular necrosis of bone is due to poor or no circulation to a bone. The bone dies and can break up eventually. There are surgeries specific to the ankle bone ( talus) that can help depending on the size of the area affected. Sometimes long term bracing can protect the bone till the bone becomes revascularized.