I'm scheduled for an L4-L5 360 fusion on Nov 6 and 7. The front first followed by the back the next morning. My surgeon says he prefers to do the procedures separately, though he didn't really explain why except to say that it's a lot of surgery for one day. During my consultation I agreed, thinking that if the surgeon prefers it that way it must be the best way. But is it? So scary to think of having major surgery 2 days in a row! Has anyone here done it this way?