Thermo-mechanical investigation of the short glass fibre reinforced epoxy used as the cortical bone analgoue in sawbones femurs

Bell, Cameron G. and Weinrauch, Patrick C. and Crawford, Ross W. and Pearcy, Mark J. (2005) Thermo-mechanical investigation of the short glass fibre reinforced epoxy used as the cortical bone analgoue in sawbones femurs. In: 11th Annual Scientific Meting of the Australian and New Zealand Orthopaedic Research Society, 6 - 8 October 2005, Perth, Australia.

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Abstract

Tensile and four point bending tests were used to assess the material properties of the short glass fibre reinforced (SGFR) epoxy resin that are used as the cortical analogue in third generation Sawbones, at both room (22 degrees Celsius) and body temperatures (37 degrees Celsius). This research demonstrates that the modulus of elasticity of SGFR epoxy used in third generation Sawbones is highly temperature dependent. A reduction in modulus of elasticity of up to 63 percent was observed when increasing the temperature of the specimens from room to body temperature. When performing in vitro total hip modelling ideally the specimens should be at 37°C due to the properties of PMMA cement, however SGFR epoxy Sawbones do not accurately represent bone at this temperature. Hence, this material is not an appropriate model for testing the mechanics of implants that use bone cement.

ID Code:	2691
Item Type:	Conference Paper
Additional URLs:	http://www.anzors.org.au/
Keywords:	Sawbones, Temperature, Mechanical, Bone, Cement
Subjects:	Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > CLINICAL SCIENCES (110300) > Orthopaedics (110314)
Divisions:	QUT Faculties and Divisions > Faculty of Built Environment and Engineering
Copyright Owner:	Copyright 2005 (please consult author)
Deposited On:	21 Nov 2005
Last Modified:	23 Jan 2009 02:16

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