I too was denied surgery because my bones were weak. They did not think it would hold the hardware. Thus cause more damage. I took forteo going on 18 months. Some improvement I would suggest trying forteo or tymlosl as I was told many athletes use it to build and heal bone. There are some side effects but when you think about enduring for just 12 to 18 months it's doable. I would find the very best doctors and then get second opinions for sure before getting surgery. So grateful I did.
You're not alone. This is a wonderful site for support and self-education that we don't get always from our doctors.