I am 73 and have osteoporosis. I have had stenosis of lumbar spine with degenerative disc disease, foraminal stenosis, radiculopathy etc. my main symptom is that my calf muscles throb painfully after walking even if it's just a few steps. I had a laminotomy to me without fusion but now I was told I need fusion however several surgeons have warned that with my osteoporosis that could be risky. How many people out there have had successful fusion with osteoporosis. I would need three levels fuse. Thanks