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Title: New extensometer to measure in vivo uniaxial mechanical properties of human skin
Authors: Lim, K.H. 
Chew, C.M. 
Chen, P.C.Y.
Jeyapalina, S.
Ho, H.N.
Rappel, J.K.
Lim, B.H. 
Keywords: Biomechanical properties
In vivo
Skin flap
Skin measurement device
Issue Date: 2008
Source: Lim, K.H., Chew, C.M., Chen, P.C.Y., Jeyapalina, S., Ho, H.N., Rappel, J.K., Lim, B.H. (2008). New extensometer to measure in vivo uniaxial mechanical properties of human skin. Journal of Biomechanics 41 (5) : 931-936. ScholarBank@NUS Repository.
Abstract: Biomechanical properties of skin are important for clinical decision making as well as clinical intervention. Measuring these properties in vivo is critical for estimating dimensional behaviour of skin flap or graft after harvest. However, existing methodologies and devices often suffer from lack of standardisation and unwanted peripheral force contribution due to the deformation of surrounding tissues during measurement. This naturally leads to measurement inaccuracies and lack of reproducibility. In order to improve the measurement accuracy, a new portable extensometer, which measures the non-invasive in vivo biomechanical properties of skin, has been designed and constructed. This design incorporates three pads that attach to the skin, including a C-shaped pad to shield the force sensor from peripheral forces. Such design produces data that are significantly closer to in vitro measurements. The results have been verified by finite element analysis, and experiments on rubber sheets and pig skins. This device can be used to obtain biomechanical properties of skin that will aid doctors in measuring skin elasticity and surgical planning, especially in skin flap surgery. © 2008 Elsevier Ltd. All rights reserved.
Source Title: Journal of Biomechanics
ISSN: 00219290
DOI: 10.1016/j.jbiomech.2008.01.004
Appears in Collections:Staff Publications

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