INSERT FOR USE IN A KNEE PROSTHESIS

An insert (150) for use in a knee prosthesis (100) is disclosed. In one embodiment, the insert includes an inboard compartment (260) and an outboard compartment (270). The inner compartment comprises a top surface (262) having a concave or curved surface with a more rearward groove (Pm) and an increased front lip (265). The outer compartment includes a top surface (272) having at least a section or portion with a convex or curved surface. As such an arrangement, the insert arrangement and configuration provides improved stability for different levels of PCL defects compared to existing inserts having midline trenches and outboard lobes. Furthermore, the insert provides improved lateral posterior translation compared to existing designs with concave or flat lateral joints lacking lateral posterior lobes. 公开了一种用于膝假体(100)中的插入件(150)。在一个实施例中，插入件包括内侧隔室(260)和外侧隔室(270)。内侧隔室包括顶表面(262)，所述顶表面具有带有更靠后的沟(Pm)和增加的前唇(265)的凹面或曲面。外侧隔室包括顶表面(272)，所述顶表面至少具有带凸面或曲面的区段或部分。如此布置，与具有中线沟和外侧凸部的现有插入件相比，该插入件布置和构造成为不同等级的PCL缺陷提供改善的稳定性。此外，与具有缺