ALIF: Anterior Lumbar Interbody Fusion
What it is
Spinal fusion is a surgical procedure used to correct problems with the small bones in the spine (vertebrae). It is essentially a "welding" process. The basic idea is to fuse together the painful vertebrae so that they heal into a single, solid bone. An interbody fusion involves removing the intervertebral disk. When the disk space has been cleared out, a metal, plastic, or bone spacer is implanted between the two adjoining vertebrae.
These spacers, or "cages", usually contain bone graft material. This promotes bone healing and facilitates the fusion. After the cage is inserted, surgeons often use metal screws, plates, and rods to further stabilize the spine.
An interbody fusion can be performed using a variety of different approaches.
In an anterior lumbar interbody fusion (ALIF), the procedure is performed from the front. With this approach, the organs and blood vessels must be moved to the side. This allows your surgeon to access the spine without moving the nerves.
Source from AAOS, Viewmedica, WebMD