Prostheses and tools for replacement of natural facet joints

Details Prostheses and tools for replacement of natural facet joints Prostheses and tools for replacement of natural facet joints

A - Human Necessities

61

F

A61F 2/44 (2006.01)

Patent

CA 2531593

Cephalad and caudal vertebral facet joint prostheses and methods of use are provided. The cephalad prostheses are adapted and configured to be attached to a lamina portion of a vertebra without blocking a pedicle portion of the cephalad vertebra. In some embodiments, the prosthesis is attached with a non- invasive support member, such as a clamp. In other embodiments, a translaminar screw may be used for additional fixation.

La présente invention concerne des prothèses de facette de vertèbre lombaire et cervicale. Ces prothèses cervicales sont conçues et agencées pour être fixées à une partie de lamina de vertèbre sans bloquer une partie pédonculaire de la vertèbre vertébrale. Dans certains modes de réalisation de l'invention, cette prothèse est fixée avec un élément de support non invasif, tel qu'une pince. Dans d'autres modes de réalisation de l'invention, une vis translaminaire peut être utilisée comme fixation additionnelle.

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