Management of lumbar spondylolisthesis: A retrospective analysis of posterior lumbar interbody fusion versus transforaminal lumbar interbody fusion.

Background: One of the most frequent etiologies for spinal surgery is unstable lumbar spondylolisthesis (ULS). To decompress affected structures while maintaining or restoring stability through fusion, surgeons utilize a variety of procedures. When paired with interbody fusion, posterior fusion is most applied, resulting in greater fusion rates.