What is spinal decompression and spine fusion surgery?

Different surgeries. Spinal decompression surgery is performed nerve root impingement-usually from bone or ligaments in the spinal canal or where the nerve roots exit-the neuroforamena. Generally called a laminectomy, it involves removing bone and ligament from the spine. A spinal fusion locks together two or more segments of the spine, usually with screws and rods. Bone is added as well to allow the bones to knit.
Pressure relief. Surgery is for nerve compression and spinal instability. Consult a reputable spine surgeon.