Patent ID: 7479160

Claim:
A spinal fusion implant, comprising: an elongate bone portion defining a longitudinal axis and having a generally rectangular cross-section transverse to the longitudinal axis, said bone portion comprising: a first end portion and an opposite second end portion; a first bone engaging surface; a second bone engaging surface; a first sidewall extending between said first and second bone engaging surfaces, wherein the first sidewall comprises a concave outer surface extending axially between said first and second end portions; and a second sidewall arranged opposite said first sidewall and extending between said first and second bone engaging surfaces, wherein said second sidewall comprises a convex outer surface extending axially between said first and second end portions; and wherein said concave outer surface of said first sidewall extends generally parallel with and is positioned opposite said convex outer surface of said second sidewall to provide said elongate bone portion with a generally crescent shaped cross-section in a plane including the longitudinal axis.