Introduction to Failed Back Syndrome Failed Back Syndrome (FBS), also called post-laminectomy syndrome, is the heartbreaking reality for many patients who still suffer severe pain months or years after spinal surgery. Despite modern techniques like discectomy, fusion, or decompression, up to 40% of patients experience little or no relief — or even worse pain than before. FBS can trap people in a cycle of opioids, depression, lost work, and hopelessness. The good news? It is n