A lumbar fusion, is a procedure in which the spine is stabilized, typically using bone graft, screws, and rods. The bone graft is added to an area of the spine to cause natural bone to grow between two or more vertebrae to limit movement in that area.
This procedure involves creating a small vertical incision in the middle of the back. The muscles are then moved aside to gain access to the spine. The lamina is removed, allowing the surgeon to visualize the spinal nerves. In certain cases, the entire disc is removed and bone graft material is then placed into the disc space, allowing bone to grow between the vertebrae.