I had a PLIF Double fusion of L4-S1 on Dec 09 I was still having a lot of pain and they implanted a spinal cord stimulator which help some. But after two years they found that the surgery is a non fusion that the hardware is loose. On top of that between L4-L5 the bone graft material that they use it has eat part of the bone and have made a denture in both vertebrate. They are recomending go thru the front remove the old bone graft material and put a new in and then flip me to the back and redu the back surgery. Do someone have any sugestion or have the surgery perform?