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Bryan Cornwall, James F Marino, Dan Ahlgren, Troy Wooley: Facet screw and bone allograft intervertebral support and fusion system. NuVasive, Jonathan Spangler, November 26, 2002: US06485518 (321 worldwide citation)

An intervertebral support assembly, comprising a pair of bone allografts positioned between two adjacent vertebrae, the bone allografts being positioned towards the anterior portion of the adjacent vertebrae; and a pair of facet screws, each facet screw securing together a facet joint between the tw ...


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Corwall Bryan, Marino James F, Ahlgren Dan, Wooley Troy: Facet screw and bone allograft intervertebral support and fusion system. Nuvasive, sHECKADON David R, June 14, 2001: WO/2001/041681

An intervertebral support assembly, comprising a pair of bone allografts (40A and 40B) positioned between two adjacent vertebrae, the bone allografts being positioned towards the anterior portion of the adjacent vertebrae; and a pair of facet screws (30A and 30B), each facet screw securing together ...