Modular intervertebral prosthesis system

Details Modular intervertebral prosthesis system Modular intervertebral prosthesis system

A - Human Necessities

61

F

A61F 2/44 (2006.01) A61F 2/00 (2006.01) A61F 2/02 (2006.01) A61F 2/08 (2006.01) A61F 2/28 (2006.01) A61F 2/30 (2006.01)

Patent

CA 2501293

A modular intervertebral prosthesis system includes first and second baseplates (20) and an insert (70) designed to mate to the baseplates (20). The baseplates (20) include a mounting section (30) and a intervertebral section (50) extending away from the mounting section (30) generally perpendicular thereto. The intervertebral section (50) has at least one aperture (60) passing therethrough. When installed, the insert (70) is disposed between the intervertebral sections (50) of the baseplates (20) and faces the apertures (60). In this way, the insert (70) is not insulated from the vertebral members, thereby allowing for osteoinduction, osteoconduction, and/or osteointegration, if desired. The insert (70) may take the form of an articulating-type insert or a fusion-type insert, with the baseplates being operative with both types of inserts. After installation of the insert (70) between the baseplates (20), the insert (70) may be readily removed, at least initially.

L'invention concerne un système de prothèse intervertébrale modulaire comprenant une première et une deuxième plaque-base et un insert conçu pour correspondre aux plaques-bases. Ces plaques-bases comportent une partie montage et une partie intervertébrale s'étendant hors de la partie montage généralement perpendiculaire et comportant au moins une ouverture traversante. Une fois placé, l'insert se trouve entre les parties intervertébrales des plaques-bases, en face des ouvertures. Ainsi, l'insert n'est pas isolé des éléments vertébraux et il permet l'ostéoinduction, l'ostéoconduction et/ou l'ostéointégration si nécessaire. L'insert peut être de type articulaire ou de type fusion, les plaques-bases pouvant être utilisées avec ces deux types d'inserts. Après placement entre les plaques-bases, l'insert peut être rapidement sorti, au moins dans la phase initiale.

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