I had a fractured distal femur in 2001. I had to talk the doctor / ortho in to doing a rod. ( I actually broke both legs in a forward fall, tib/fib on right leg) My femur was completely broken, the leg would have turned 360 degrees if I let it . Seems to me it would depend on what sort of fracture you have.
I ended up with a good honest ortho who told me, "I don't know spinal cord injury but I can fix long bones" so, I knew the SCI part was all up to me. I got an, "intramedullary rod" aka 'IM Nail procedure' and have no regrets 15 years down the road things are still stable . I am cautious not to torque it because I know the bones the rod connects to are osteoporotic . I had a couple tough weeks after surgery but really not a lot of time in bed. I would wear a cast / immobilizer that fit under my pants. I also had to get and put elevated footrest on an old Quickie GPV I had ( rigid but with removable footrest) to keep leg straight.
I could transfer into my car passenger side and would go get checked by ortho. Healing was going slow and we went with Electronic Bone growth stimulators, they jump started things and ultimately sealed the deal.
Again I think it will depend on what kind of fracture you have but this is what worked for me.
I will add too that I was 23 years post injury when I fractured I think how far along your bones are makes a difference in healing time, outcomes, etc.
Good luck with getting running again.
IM Nail procedure:
https://en.wikipedia.org/wiki/Intramedullary_rod