INTERBODY VERTEBRAL IMPLANT WITH SAGITTAL INSERTION

摘要

A lumbar intersomatic implant for insertion into the discal space between two adjacent vertebrae for reestablishing the anatomical intervertebral space, the implant being in the form of a generally rectangular cage having two sagittal walls interconnected by at least an anterior transverse wall and a posterior transverse wall, the walls defining between them an open volume for filling with bone. An "outer" one of the sagittal walls of the implant presents a top rim and a bottom rim each shaped to present at least one retention edge extending substantially in the sagittal plane, making insertion via a posterior path possible, and an outer face arranged to present a penetration assisting shape enabling the cage to be offset transversely to a locking position in the discal space, which position is obtained by the retention edge preventing the cage from being reversed transversely.