Help save my leg

Hi my name is Koda.
Hi my name is Koda. I'm 3 years old, I went for a walk and was struck by an OPP vehicle on the way home. I need surgery to put my hips back in place and need bone fragments removed my owner who has epilepsy has always relied on me for emotional support. Unfortunately I'm th one relying on him right now, since I'm having trouble getting around on three legs. I can not go upstairs or gt on and off the couch. The person who hit me didn't care enough to stop and help me, maybe you can.