The femur is the largest and strongest bone in the human body so for Savoie breaking his is a true testament to how hard he crashed into the boards.
It is encouraging to hear that Savoie is expected to make a full recovery but we do not know how long it will take Savoie to get back to playing. However, femur breaks typically take 4-6 months to recover with 2 months there being zero weight put on the injury.
If Savoie is able to get back to playing this year, that is a major win for him and the Blackhawks organization.