Effect of trabecular bone loss on cortical strain rate during impact in an in vitro model of avian femur |
| |
Authors: | Tal Reich Amit Gefen |
| |
Institution: | (1) Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, 69978 Tel Aviv, Israel |
| |
Abstract: | Background Osteoporotic hip fractures occur due to loss of cortical and trabecular bone mass and consequent degradation in whole bone
strength. The direct cause of most fractures is a fall, and hence, characterizing the mechanical behavior of a whole osteopenic
bone under impact is important. However, very little is known about the mechanical interactions between cortical and trabecular
bone during impact, and it is specifically unclear to what extent epiphyseal trabecular bone contributes to impact resistance
of whole bones. We hypothesized that trabecular bone serves as a structural support to the cortex during impact, and hence,
loss of a critical mass of trabecular bone reduces internal constraining of the cortex, and, thereby, decreases the impact
tolerance of the whole bone. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|