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1. (WO2013148954) TIBIAL PROSTHESIS SYSTEMS, KITS, AND METHODS

Pub. No.:    WO/2013/148954    International Application No.:    PCT/US2013/034286
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Fri Mar 29 00:59:59 CET 2013
IPC: A61F 2/46
Applicants: ZIMMER, INC.
Inventors: CLAYPOOL, Jody
PAPROSKY, Wayne
LEWALLEN, David
STUMP, Steven
Title: TIBIAL PROSTHESIS SYSTEMS, KITS, AND METHODS
Abstract:
Tibial prosthesis systems for implantation or use in a knee joint are disclosed. A tibial prosthesis system (340) can include a bearing component (342), a base component (344), a shim component (346), and optionally a spacer component (726). The shim or spacer component can be inserted between an inferior surface (348) of the bearing component and a superior surface (352) of the base component. The insertion of the shim or spacer component can provide spacing adjustment between the bearing and base components. The shim component can include one or both of a medial edge (702) having a different height than a lateral edge (704) or an anterior edge (706) having a different height than a posterior edge (708). The differing edge height of the shim component can provide a surgeon with knee joint kinematic insight regarding an angled bone cut before the cut is made, and can allow for sizing of an appropriately permanent prosthesis system using a reduced number of provisional components.