PT - JOURNAL ARTICLE AU - Hyeun Sung Kim AU - Pang Hung Wu AU - Koichi Sairyo AU - Il-Tae Jang TI - A Narrative Review of Uniportal Endoscopic Lumbar Interbody Fusion: Comparison of Uniportal Facet-Preserving Trans-Kambin Endoscopic Fusion and Uniportal Facet-Sacrificing Posterolateral Transforaminal Lumbar Interbody Fusion AID - 10.14444/8166 DP - 2021 Dec 01 TA - International Journal of Spine Surgery PG - S72--S83 VI - 15 IP - suppl 3 4099 - https://www.ijssurgery.com/content/15/suppl_3/S72.short 4100 - https://www.ijssurgery.com/content/15/suppl_3/S72.full SO - Int J Spine Surg2021 Dec 01; 15 AB - Uniportal endoscopic lumbar interbody fusion aims to achieve the bony union of 2 lumbar segments through cage insertion using full spinal endoscopy. Endoscopic fusion can adjust foraminal height and disc height, improve alignment, and minimize collateral soft tissue damage during the insertion of an interbody cage. The surgery is performed under constant irrigation with normal saline and an optical endoscopic lens close to the targeted disc segment. Two main subtypes of uniportal endoscopic fusion are currently described in the literature. We broadly classify them into facet-preserving and facet-sacrificing endoscopic lumbar interbody fusions. We have termed them uniportal facet-preserving trans-Kambin endoscopic fusion and uniportal facet-sacrificing posterolateral transforaminal lumbar interbody fusion. In this article, we review the current literature and discuss the history, indications, contraindications, technical differences, clinical outcomes, and complications of uniportal endoscopic interbody fusion surgery.