An allogenic intervertebral implant for fusing vertebrae is disclosed. The implant is a piece of allogenic bone conforming in size and shape with a portion of an end plate of a vertebra. The implant has a wedge-shaped profile to restore disc height and the natural curvature of the spine. The top and...http://www.google.com/patents/US20010049560?utm_source=gb-gplus-sharePatent US20010049560 - Intervertebral allograft spacer
