Abstract：
:This study evaluated the feasibility of assessing continuous strain distributions on fracture callus cross-sections with an electronic speckle pattern interferometry (ESPI) system. Mid-sagittal callus cross-sections were harvested from ovine tibiae. One low stiffness (LS) specimen and one high stiffness (HS) specimen were selected to evaluate the feasibility for strain acquisition over a range of callus properties. The HS specimen was 147 times stiffer in compression than the LS specimen. ESPI captured continuous strain distributions on both specimens. Peak strain was located adjacent to cortical boundaries in the osteotomy gap. In response to 5N compression, peak compressive strain of 5.8% in the LS specimen was over two orders of magnitude higher than peak compressive strain of 0.013% in the HS specimen. In conclusion, ESPI-based strain acquisition enables reproducible quantification of strain distributions on callus cross-sections. Such measurements may support validation of computational models and evaluation of experimental results in fracture healing research.
journal_name
J Biomechjournal_title
Journal of biomechanicsauthors
Bottlang M,Mohr M,Simon U,Claes Ldoi
10.1016/j.jbiomech.2007.10.024subject
Has Abstractpub_date
2008-01-01 00:00:00pages
701-5issue
3eissn
0021-9290issn
1873-2380pii
S0021-9290(07)00465-4journal_volume
41pub_type
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