Evaluation of the influence of strain rate on Colles' fracture load.

Journal of Biomechanics
Ani UralD Vashishth

Abstract

Colles' fracture, a transverse fracture of the distal radius bone, is one of the most frequently observed osteoporotic fractures resulting from low energy or traumatic events, associated with low and high strain rates, respectively. Although experimental studies on Colles' fracture were carried out at various loading rates ranging from static to impact loadings, there is no systematic study in the literature that isolates the influence of strain rate on Colles' fracture load. In order to provide a better understanding of fracture risk, the current study combines experimental material property measurements under varying strain rates with computational modeling and presents new information on the effect of strain rate on Colles' fracture. The simulation results showed that Colles' fracture load decreased with increasing strain rate with a steeper change in lower strain rates. Specifically, strain rate values (0.29s(-1)) associated with controlled falling without fracture corresponded to a 3.7% reduction in the fracture load. On the other hand, the reduction in the fracture load was 34% for strain rate of 3.7s(-1) reported in fracture inducing impact cadaver experiments. Further increase in the strain rate up to 18s(-1) led to an ...Continue Reading

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Jul 26, 2011·Journal of the Mechanical Behavior of Biomedical Materials·Ani UralDeepak Vashishth

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Citations

Feb 18, 2014·Forensic Science International : Synergy·Zahra AsgharpourSteffen Peldschus
Feb 9, 2016·Interface Focus·Fereshteh A SabetIwona Jasiuk
Aug 3, 2020·Current Osteoporosis Reports·Ani Ural

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