An intervertebral implant has a fusion body with at least one keel that anchors the implant into cancellous bone of at least one vertebral body. A method for implantation includes lateral implantation of the implant.
US Patent 07837732 Intervertebral body fusion cage with keels and implantation methodsUS Patent 7837732 Intervertebral body fusion cage with keels and implantation methods