I playing ball I broked footdoctor's diagnosis talus avülsiyonfracture. Doctor did short leg splints. Was 17 days. Today he said can walk. Is this normal?

Avulsion fracture. Without seeing the xrays this is hard to answer, but it usually takes longer than 17 days to heal form an avulsion fracture. Good luck !
Avulsion fracture. While it takes longer than 17 days to heal....Walking is permitted once the injury is stable & pain is manageable. Fractures do not necessarily need to be fully healed to support walking. This depends entirely on the location & severity of the fracture.