Posterior Lumbar Interbody Fusion (PLIF): Removal of the degenerative disk by going through the skin on the back, removal of the posterior bone of the spinal canal, retraction of the nerves to get to the disk space. A structural device, made of bone, metal, carbon filter or other materials, is placed to take the supportive place of the removed disk and packed with bone, so that ultimately fusion between the bone (body of the vertebrae) above and below occurs. Similar to TLIF, this is often done on both sides of the spine.

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