| 摘要 |
<p>The invention concerns a cage (1) having an elongated shape and delimiting four lateral surfaces (2, 3), two main surfaces (2) defining between them the thickness of the cage, and two secondary surfaces (3) designed to be urged in contact with the vertebrae (50); said secondary surfaces (3) have a convex curvature matching the concave shape of the vertebral end-plates (51) in the antero-posterior plane, and the thickness of the cage (1) is reduced, that is can range between 3.5 and 7 mm. The invention is characterised in that the cage has, at least at one of said secondary surfaces (3), a longitudinal groove (4) arranged in the median zone of said secondary surface (3), and it has a curved shape at that same surface, viewed in the longitudinal direction of the cage (1).</p> |
