Abstract

Spinal fusion surgery can now be performed through the endoscopic approach. Adequate endplate preparation and sufficient contact between bone graft or bone graft substitutes with the surfaces of the vertebral endplates are main factors to achieve <em>successful arthrodesis</em>. The purpose of this study are to compare the bone graft area, ratio of allograft-bonegraft (allo-bone) to total disc area, fusion rate, functional and radiographic outcomes between Endoscopic and Mini-open TLIF and to introduce the endoscopic technique of endplate preparation and implantation.

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