Liza Jane,
I have a small amt of knowledge about some of this.

1. Bone stimulator - I had spontaneous stress fractures of the tibia's. One was on going for 2 years. They finally put a stimulator on my leg and it healed after 2 years. We were then able to put the same one on the other leg when it fractured. I'd recommend it from my experience. They are a lot of trouble, but I found that I could sleep in it and also carried it with me and put it on at work when sitting under my desk.

I also remember something in my reading about botox being used to break up scar tissue.

Hope this helps,
Billye