Patent ID: 8246686

Claim:
A spinal fusion implant of non-bone construction positionable within an interbody space between a first vertebra and a second vertebra, said implant comprising: an upper surface including anti-migration elements to contact said first vertebra when said implant is positioned within the interbody space, a lower surface including anti-migration elements to contact said second vertebra when said implant is positioned within the interbody space, a distal wall, a proximal wall, a first sidewall, and a second sidewall generally opposite from the first sidewall, wherein said distal wall, proximal wall, first sidewall, and second sidewall comprise a radiolucent material; wherein said implant has a longitudinal length greater than 40 mm extending from a proximal end of said proximal wall to a distal end of said distal wall, an implant width extending from said first sidewall to said second sidewall, wherein said longitudinal length is at least two and half times greater than said implant width, and wherein said implant width is greater than a distal width of said distal wall and is greater than a proximal width of said proximal wall; at least a first fusion aperture extending through said upper surface and lower surface and configured to permit bone growth between the first vertebra and the second vertebra when said implant is positioned within the interbody space, said first fusion aperture having: a longitudinal aperture length extending generally parallel to the longitudinal length of said implant, and an aperture width extending between said first sidewall to said second sidewall, wherein the longitudinal aperture length is greater than the aperture width; and at least a first radiopaque marker at least partially arranged in said radiolucent material of said implant, wherein said first radiopaque marker is positioned proximate to a medial plane of said implant that extends through portions of the first and second sidewalls positioned generally centrally between the proximal and distal ends.