Hello Katya,
I had osteoradionecrosis or bone death following treatment. I had the bone removed and replaced with new bone and blood supply 2 years ago. It actually took about 4 years before they felt that it had to be replaced. In fact the only reason they decided to replace it was that I had broken it after blowing my nose. Good thing I did not have that much feeling in the area. The replacement was very successful.
When I had my recurrence in April and had to have the another part of my tongue removed, my Surgeon was very surprised at how well the bone mended together. He said it was hard for him to cut into it again...........but of coarse he did. It heeled very quickly and is almost perfect after this last surgery. If you want to know anything more just let me know.
David