一种用于评估多孔珠涂层植入物周围特定部位骨内生长的宏微观 FE 和 ANN 框架:BOX®胫骨植入物全踝关节置换的实例。
A macro-micro FE and ANN framework to assess site-specific bone ingrowth around the porous beaded-coated implant: an example with BOX® tibial implant for total ankle replacement.
机构信息
Biomechanics Research Laboratory, School of Mechanical & Materials Engineering, Indian Institute of Technology Mandi, Kamand, Mandi, 175075, Himachal Pradesh, India.
出版信息
Med Biol Eng Comput. 2024 Jun;62(6):1639-1654. doi: 10.1007/s11517-024-03034-x. Epub 2024 Feb 7.
The use of mechanoregulatory schemes based on finite element (FE) analysis for the evaluation of bone ingrowth around porous surfaces is a viable approach but requires significant computational time and effort. The aim of this study is to develop a combined macro-micro FE and artificial neural network (ANN) framework for rapid and accurate prediction of the site-specific bone ingrowth around the porous beaded-coated tibial implant for total ankle replacement (TAR). A macroscale FE model of the implanted tibia was developed based on CT data. Subsequently, a microscale FE model of the implant-bone interface was created for performing bone ingrowth simulations using mechanoregulatory algorithms. An ANN was trained for rapid and accurate prediction of bone ingrowth. The results predicted by ANN are well comparable to FE-predicted results. Predicted site-specific bone ingrowth using ANN around the implant ranges from 43.04 to 98.24%, with a mean bone ingrowth of around 74.24%. Results suggested that the central region exhibited the highest bone ingrowth, which is also well corroborated with the recent explanted study on BOX®. The proposed methodology has the potential to simulate bone ingrowth rapidly and effectively at any given site over any implant surface.
基于有限元(FE)分析的机械调节方案用于评估多孔表面周围的骨长入是一种可行的方法,但需要大量的计算时间和精力。本研究旨在开发一种组合的宏观-微观有限元和人工神经网络(ANN)框架,用于快速准确地预测全踝关节置换(TAR)中多孔珠涂层胫骨植入物周围特定部位的骨长入。根据 CT 数据开发了植入胫骨的宏观有限元模型。随后,为植入物-骨界面创建了一个微观有限元模型,以使用机械调节算法进行骨长入模拟。训练 ANN 用于快速准确地预测骨长入。ANN 预测的结果与 FE 预测的结果非常可比。ANN 预测的植入物周围特定部位的骨长入范围为 43.04%至 98.24%,平均骨长入约为 74.24%。结果表明,中心区域表现出最高的骨长入,这也与最近对 BOX®的植入研究很好地一致。所提出的方法有可能在任何给定的植入物表面的任何部位快速有效地模拟骨长入。