Anterior lumbar interbody fusion (ALIF) is a kind of spinal fusion done via anterior approach. We can get access to the spine from the abdomen by using a special corridor called retroperitoneal space. Historically, it is a classical approach for spinal fusion since 1950’s. There are several advantages over the posterior spinal fusion including better restoration of the lumbar curvature, more stable in supporting the spine with larger fusion area and without nerve tissue irritation.
Now the ALIF is much different from the past. We use inter-body fusion cage (a plastic rectangular shape device made of an inert substance with physical property similar to bone) with bone substitute packed in the middle. The fusion cage has its own fixation system to stabilise itself into the disc space. Therefore lumbar rigid brace is not required. Earlier recovery in return to normal activities is expected. Bone growth inside the fusion cage to achieve union between 2 vertebrae is usually seen at 6 months.
