Patent ID: 9295557
Filing Date: 2016-03-29
CPC Classification: A61F

Claim Text:
1. A method of implanting a tibial prosthesis on a tibia, the method comprising: resecting a proximal end of a tibia to create a resected tibial surface, the tibia having an anteriorly disposed tibial tubercle and a connection point to a posterior cruciate ligament; identifying an anatomic anteroposterior axis which intersects: providing a tibial prosthesis having alignment indicia indicating a component anteroposterior axis designed to be aligned with the anatomic anteroposterior axis, wherein the tibial prosthesis comprises a tibial baseplate having a distal surface comprising a bone contacting surface and a proximal surface comprising a tibial bearing engagement surface, the tibial prosthesis having a lateral compartment and a medial compartment, the lateral compartment is asymmetric with respect to the medial compartment about the component anteroposterior axis to define a component asymmetry; and positioning and orienting the tibial prosthesis with respect to the tibia by aligning the alignment indicia with the anatomic anteroposterior axis, the step of positioning comprising matching the component asymmetry to a corresponding asymmetry of the resected tibial surface, whereby the tibial prosthesis covers a large proportion of the resected tibial surface.