Moving the post from other thread http://dai.ly/x424svn
This video asked some doctors. They said if his condition is bad, then he'd better take surgery and rest for 6 months.
Because of this injury he was forced to stop jumping 4T for 2 months after National. Nobunari Oda also said that Yuzuru's leg was hurt. They thought he was healed for WC but the Boston practice was too harsh so it's bad again (it's your fault, Yuzuru).
This injury does not affect edge jump like 4S, 4Lo... so if by some bad luck he is not advised to do 4T and has to stop training 4lz... then maybe he will have to train 4A or else how can he does 4 quads?
Still, there is no official news about the degree of injury so hopefully he can save his 4T. I have no hope for 4lz now.
He can do 4 quads by doing each of the two types of quads in combination and solo. However, 4R is a dangerous jump. He could injure his hip. I hope he can get the quad toe back.