Is a fissurectomy what you are having next? That was the surgery I had as opposed to the LIS. I read a recent medical paper on line (didn't keep the citation) that demonstrated fissurectomies were just as effective as LIS in many cases and some docs are starting to use them more, plus you don't have the potential for incontenence (spelling?). In my case the fissure wouldn't heal due to a hemmy in a bad spot so he took out the fissure and the hemmy. I hear this is a more painful route, but the spasms are gone.
I really hope you end up feeling better. It would be rough to have multiple surgeries, but it will all be over sooner than you think. Just hang in there.