Patent ID: 8021394

Claim:
A spinal implant comprising: a body having a first D-shaped portion, a second D-shaped portion spaced apart from the first D-shaped portion, a side portion, and a protuberance, wherein the side portion and the protuberance extend between the first D-shaped portion and the second D-shaped portion, wherein the protuberance includes a first bump and a second bump extending in different directions and disposed apart from the side portion; an upper opening in the body to provide access to a first substantially enclosed cavity defined by the first D-shaped portion, the second D-shaped portion, the protuberance, the side portion, and the first bump; a lower opening in the body to provide access to a second substantially enclosed cavity defined by the first D-shaped portion, the second D-shaped portion, the protuberance, the side portion, and the second bump; wherein the first substantially enclosed cavity is configured to receive a portion of a first bony spinal protrusion of a first vertebra; and wherein the second substantially enclosed cavity is configured to receive a portion of a second bony spinal protrusion of a second vertebra that is adjacent to the first vertebra.