An interbody spinal fusion implant for insertion across a disc space between adjacent vertebral bodies of a human spine has a body two top side and two bottom side junctions, with at least a pair of diagonally opposed junctions having a distance therebetween that does not significantly exceed the implant...http://www.google.de/patents/US20010047207?utm_source=gb-gplus-sharePatent US20010047207 - Self-broaching, rotatable, push-in interbody spinal fusion implant and method for deployment thereof
