I agree but . . .
Femur is the largest and strongest bones in the body.
Other than the femoral head at the hip, the blood supply is pretty good. If well stabilized (the most common treatment for a femoral shaft fracture
in an adult is intramedullary nailing), in some cases it may be nearly healed in 6-8 weeks. Some surgeons will allow you to bear wt on the implant
even before this. But this isn't the whole story