Patent ID: 7544211
Filing Date: 2009-06-09
Classification: A61F

Abstract:
1. A low-profile offset stem tibial implant for implanting on a prepared surface of a tibia, the tibial implant comprising: a tray including a plate that extends transversely around a first tibial axis, the plate comprising a distal surface adapted to engage against the prepared surface of the tibia, and an engagement portion extending away from the distal surface of the plate substantially along the first tibial axis; a stem comprising a distal end adapted to be introduced into a medullary canal of the tibia along a second tibial axis, and a proximal end; one or more adapter elements comprising a proximal portion sized to engage with and contain substantially all of the engagement portion of the plate along the first tibial axis, and a distal portion adapted to engage with the proximal end of the stem, the proximal end of the stem extending through the adapter element and into the engagement portion of the plate along the second tibial axis when in an assembled configuration, the adapter element permitting adjustment of the medio-lateral and antero-posterior position of the second tibial axis relative to the first tibial axis; and a plurality of indexing features located at an interface between the plate and the adapter element to secure the tray in at least three discrete locations around the first tibial axis when in the assembled configuration.