PLIF: Posterior Lumbar Interbody Fusion


What Is A Minimally Invasive PLIF?

Posterior lumbar interbody fusion (PLIF) is a type of spine surgery that involves approaching the spine from the back (posterior) of the body to place bone graft material between two adjacent vertebrae (interbody) to promote bone growth that joins together, or “fuses,” the two structures (fusion). The bone graft material acts as a bridge, or scaffold, on which new bone can grow. The ultimate goal of the procedure is to restore spinal stability.

Today, a PLIF may be performed using minimally invasive spine surgery, which allows the surgeon to use small incisions and gently separate the muscles surrounding the spine rather than cutting them. Traditional, open spine surgery involves cutting or stripping the muscles from the spine. A minimally invasive approach preserves the surrounding muscular and vascular function and minimizes scarring.1, 2

Why Do I Need This Procedure?

A spinal fusion procedure such as a PLIF may be recommended as a surgical treatment option for patients with a condition causing spinal instability in their lower back, such as degenerative disc disease, spondylolisthesis or spinal stenosis, that has not responded to conservative treatment measures (rest, physical therapy or medication). The symptoms of lumbar spinal instability may include pain, numbness and/or muscle weakness in the low back, hips and legs.

Your surgeon will take a number of factors into consideration before recommending a PLIF, including the condition to be treated, your age, health and lifestyle and your anticipated level of activity following surgery. Please discuss this treatment option thoroughly with your spinal care provider.

How Is Minimally Invasive Lumber Interbody Fusion Performed?

First, your surgeon will make a small incision in the skin of your back over the vertebra(e) to be treated. Depending on the bone graft to be used, the incision could be as small as approximately 3 centimeters. In a traditional open PLIF, a 3- to 6-inch incision is typically required.


The nerve roots are then moved to one side and disc material is removed from the front (anterior) of the spine. Bone graft is then inserted into the disc space. Screws and rods are inserted to stabilize the spine while the treated area heals and fusion occurs.


How Long Will It Take Me To Recover?




Are There Any Potential Risks Or Complications?





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