07914560 is referenced by 19 patents and cites 844 patents.

Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra.

Title
Spinal facet implant with spherical implant apposition surface and bone bed and methods of use
Application Number
12/240047
Publication Number
7914560 (B2)
Application Date
September 29, 2008
Publication Date
March 29, 2011
Inventor
Daniel F Justin
Logan
UT, US
Daniel J Triplett
Providence
UT, US
Alan Chervitz
Palm Harbor
FL, US
T Wade Fallin
Hyde Park
UT, US
Robert W Hoy
Columbus
OH, US
Assignee
Gmedelaware 2
PA, US
IPC
A61B 17/70
A61B 17/88
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