Hello,
I have no idea what the percentage chance might be, but I can tell you that I am constantly getting disc herniations. I'm lucky if I go a couple months without at least one. I have had multi-level laminectomies in my low back several years ago for spinal stenosis. I also had foramenotomies done and discs removed at the same time. I went to physical therapy for about a year before and after surgery and I still do the exercises at home to try to keep my core strong. No matter what I do or how careful I am, I keep herniating. Sometimes it's reherniation of the same disc, sometimes it's other discs. So there's really now way to truly predict if you will reherniate. All you can do is keep your core strong and try to be careful of how you bend, twist, and lift things and hope for the best. Some people are like me and get it constantly, others may only get one herniation and never have a problem again. I'll definitely hope for you that you never do reherniate