Oh gosh Karen, what an incredibly brave woman you are. I haven't heard of such a procedure but I did find this on YouTube. You have probably viewed it, but just in case here is what I found. I went on to YouTube and searched using the words you had posted "Posterior vertebral column subtraction osteotomy" and it came up with an 11 minute video of 2 procedures preformed in Korea, worlds first osteotomy for spinal deformity. Both procedures were a success. If that's what you are having done or something similar, I pray you will have positive results as these 2 individuals shown did. They look amazingly well after their surgery and it's obviously life changing. Keep us posted, I'm looking to have my 5th fusion sometime soon, if I agree to go ahead with it. You are remarkable and inspiring. I wish you all the very best