Krichen Abdelkader, Ketata Hajer, Elgasri Sana
Laboratoire de Génie de Production Mécanique et Matériaux, Ecole Nationale d'Ingénieurs de Sfax, Département de Génie des Matériaux, B.P.: W 3038 Sfax, Tunisia.
Knee. 2006 Jun;13(3):226-30. doi: 10.1016/j.knee.2006.02.007. Epub 2006 May 2.
An in situ optical visualization technique (OVT) has been developed to identify the tibiofemoral contact (TFC) area during prosthesis indentation. An artificial total knee replacement (TKR) with borosilicate glass femoral component has been reproduced similarly to the original one. The medial and lateral contact areas have been observed, located and measured by means of in situ OVT. Therefore, it was experimentally possible to ensure a good axial alignment of the femoral component and tibial polyethylene insert. In addition, experimental measurement for load-displacement curves became reproducible. Furthermore, the evolution of the medial and lateral TFC areas as a function of the normal load was established. Finally, this study has shown that the in situ OVT is a simple in vitro method that provides comparable results with well-known methods such as Fuji film technique.
一种原位光学可视化技术（OVT）已被开发出来，用于在假体压痕过程中识别胫股接触（TFC）区域。一个带有硼硅酸盐玻璃股骨部件的人工全膝关节置换术（TKR）已被类似地复制成与原始的一样。内侧和外侧接触区域已通过原位OVT进行观察、定位和测量。因此，从实验上有可能确保股骨部件和胫骨聚乙烯插入物的良好轴向对齐。此外，载荷-位移曲线的实验测量变得可重复。此外，还确定了内侧和外侧TFC区域随法向载荷的变化情况。最后，这项研究表明原位OVT是一种简单的体外方法，能提供与富士胶片技术等知名方法相当的结果。
