Rusty T. Meier,Daren L. Deffenbaugh,Mark A. Heldreth,Stephen A. Hazebrouck
申请号：
US13247453
公开号：
US20130079885A1
申请日:
2011.09.28
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A fixed-bearing prosthesis includes a femoral component having a medial condyle surface and a lateral condyle surface. The knee prosthesis also includes a bearing having a medial bearing surface configured to articulate with the medial condyle surface of the femoral component, and a lateral bearing surface configured to articulate with the lateral condyle surface of the femoral component. A tibial tray is secured to the bearing. The tibial tray has a platform with an elongated stem extending downwardly from a lower surface thereof. A posterior buttress extends along a posterior section of the perimeter of the trays platform, and an anterior buttress extends along an anterior section of the perimeter of the trays platform. Differently-sized tibial trays are interchangeable with differently-sized bearings.
