Patent ID: 8123811

Claim:
A cervical implant for fusion of adjacent vertebrae comprising a body having opposite major surfaces for contacting the end plates of adjacent vertebrae, respectively, said opposite major surfaces having opposite ends and opposite sides, respectively, one of said opposite major surfaces having a first series of openings therein, the other of said opposite major surfaces having a second series of openings therein, said first and second series of openings extending perpendicularly to each other, said first and said second series of openings communicate within said body forming a labyrinth, said opposite sides are pyramidal, respectively, resulting in a wedge shape with one large opposite end and one small opposite end, and retainers each including a planar groove and end wall extending outwardly from said small opposite end for anchoring said body, wherein corners are formed by said opposite ends joining said opposite major surfaces, respectively, said retainers extending outwardly from said major surfaces at said corners, said body being one piece and said openings filled with bone growth material.