Strain shielding in trabecular bone at the tibial cement-bone interface

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• 作者：Priyanka Srinivasan^a ; ^{priyanka.srinivasan@radboudumc.nl} ; Mark A. Miller^b ; Nico Verdonschot^a ; ^c ; Kenneth A. Mann^b ; Dennis Janssen^a
• 关键词：Bone-cement interface ; Strain shielding ; Micromotion ; Aseptic loosening ; Finite element analysis
• 刊名：Journal of the Mechanical Behavior of Biomedical Materials
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：66
• 期：Complete
• 页码：181-186
• 全文大小：2087 K
• 卷排序：66

文摘

FE models of cement-bone interface were used to study how implant loosening occurs. Interdigitated bone micromotion and strain increased toward the distal interface. Interdigitated bone is strain shielded compared to the underlying supporting bone. Proximal interdigitated bone showed large decrease in strain post-operatively. Strain adaptive remodeling of interdigitated bone could lead to implant loosening.