Patent ID: 8337555

Claim:
A method of restoring anatomical intervertebral space between two vertebrae, comprising: selecting an implant comprising: a first bearing wall having an outer convex surface and a free end; a second bearing wall having an outer convex surface and a free end; an intermediate wall having a curved shape without marked angles, the intermediate wall connecting the first bearing wall to the second bearing wall such that the first and second bearing walls are substantially parallel to one another and are spaced apart from one another; and a plurality of ribs, the ribs being parallel to one another and protruding from an external face of at least one of the bearing walls near its free end; and positioning the implant between a first, upper vertebral body and a second, lower vertebral body to restore a disc space between the vertebral bodies, the ribs being secured to an anterior portion of at least one of the vertebral bodies.