When I had my hysterectomy they considered doing it without GA because of complications after a prior surgery. They were talking about doing it with a spinal. Ultimately my doctor felt it wouldn't be safe to do it without meds to keep me from moving at all which means intubation is necessary. She said it was too dangerous to have the potential for movement while they are cutting. I hope I'm remembering that completely accurately but it was similar if not precisely that.