Denise,
I honestly don't know if it would have spread. I suspect it would have. But, I had to do whatever I could to give myself the best chance of coming out of this. mY ent said that they used to just scrape the bone down somewhat but they had better luck with removal. I am still not out of the woods yet. I just am Ok for now, which is all we have. I hate that your MOm has to make this decision. I wish I had gotten some more opinions. I think she should at least weigh all of her options. I have a friend who had the same surgerry as mine and she has had no problems at all.
So, it is very individual I think. Some days I can't stand this and somedays I am scared I will get it again.
Take care- I wish I could help more.
Debbie