Where does the bone used in lumbar spinal fusion surgery come from?

Lumbar spinal fusion surgery is a surgery to join two or more spinal bones -- vertebrae -- so that they eventually grow into one solid bone. In lumbar spinal fusion surgery, most of the bone comes from your own spine. Portions of the vertebrae being fused are removed and used for the fusion. If more bone is needed, your doctor may use a small amount of donor bone from the bone bank. Bone will not be taken from your hip.