One of the main causes of tibial revision surgery for total knee arthroplasty is aseptic loosening. Therefore, stable fixation between the tibial component and the cement, and between the tibial component and the bone, is essential. A factor that could influence the implant stability is the implant design, with its different variations. In an existing implant system, the tibial component was modified by adding cement pockets. The aim of this experimental in vitro study was to investigate whether additional cement pockets on the underside of the tibial component could improve implant stability. The relative motion between implant and bone, the maximum pull-out force, the tibial cement mantle, and a possible path from the bone marrow to the metal-cement interface were determined.

中文翻译：

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胫骨设计修改能否提高全膝关节置换术的植入物稳定性？一项实验性尸体研究。

全膝关节置换术胫骨翻修手术的主要原因之一是无菌性松动。因此，胫骨假体与骨水泥之间以及胫骨假体与骨之间的稳定固定至关重要。可能影响种植体稳定性的一个因素是种植体设计，它具有不同的变化。在现有的植入系统中，胫骨组件通过添加骨水泥袋进行了修改。这项实验性体外研究的目的是调查胫骨部件下侧的额外骨水泥袋是否可以提高植入物的稳定性。确定了植入物和骨之间的相对运动、最大拔出力、胫骨水泥罩以及从骨髓到金属-水泥界面的可能路径。