I had a lumbar fusion many years ago. Recovery was uneventful and I was able to resume all activities with no pain. But many years later I started having low back pain, esp. after lying prone for several hours. Had MRIs. Doctor at HSS said that original fusion was still good, but it needed to be expanded and reinforced with a device placed around the lumbar spine to relieve stress above and below area of prior fusion. I'm very reluctant to have another major surgery, but after sleeping several hours the pain is acute. I'd appreciate hearing from anyone who may have had same problem.