| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fixed-bearing prosthesis in an embedded orthopedic prosthesis, more specificaly, in an embedded knee prosthesis. <P>SOLUTION: The 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 tray's platform, and an anterior buttress extends along an anterior section of the perimeter of the tray's platform. Differently-sized tibial trays are interchangeable with differently-sized bearings. <P>COPYRIGHT: (C)2013,JPO&INPIT |
