Effect of two loading rates on the elasticity of the human anterior rectus sheath

Abdelounis, H. Ben; Nicolle, Stéphane; Otténio, Melanie; Beillas, Philippe; Mitton, David

doi:10.1016/j.jmbbm.2012.12.002

Cited by 33 publications

(20 citation statements)

References 14 publications

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“…Numerous experimental studies were conducted to characterize ex vivo the mechanical response of the abdominal wall (Junge et al, 2001;Podwojewski et al, 2013Podwojewski et al, , 2014 or its components (Ben Abdelounis et al, 2013;Cooney et al, 2015;Förstemann et al, 2011;Grässel et al, 2005;Hollinsky and Sandberg, 2007;Kirilova et al, 2011;Korenkov et al, 2001;Lyons et al, 2014;Martins et al, 2012;Rath et al, 1996;Tran et al, 2014;Wolloscheck et al, 2004). However, in vivo examinations are required to take into consideration muscle activity and to study patterns of muscle activation during different tasks and postures using electromyography (Brown and McGill, 2010;Crommert et al, 2011;McCook et al, 2009;Urquhart et al, 2005;Vera-Garcia et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Abdominal wall muscle elasticity and abdomen local stiffness on healthy volunteers during various physiological activities

Tran

Podwojewski

Beillas

et al. 2016

Journal of the Mechanical Behavior of Biomedical Materials

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Section: Introductionmentioning

confidence: 99%

Abdominal wall muscle elasticity and abdomen local stiffness on healthy volunteers during various physiological activities

Tran

Podwojewski

Beillas

et al. 2016

Journal of the Mechanical Behavior of Biomedical Materials

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“…Uniaxial tensile tests on human samples of linea alba or on rectus abdominis sheath have also been performed (e.g. Rath et al 1996Rath et al , 1997Wolloscheck et al 2004;Grässel et al 2005;Hollinsky andSandeberg 2007, Korenkov et al 2001;Förstemann et al 2011;Kirilova et al 2011;Ben Abdelounis et al 2013). Studies on the abdominal muscles seem less frequent and did not include human samples.…”

Section: Introductionmentioning

confidence: 99%

Contribution of the skin, rectus abdominis and their sheaths to the structural response of the abdominal wall ex vivo

Tran

Mitton

Voirin

et al. 2014

Journal of Biomechanics

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“…However, this approach does not account for slippage of the tissue from the grips. The use of image-based strain measurement methods [17,18] may have a significant improvement on the accuracy of observed mechanical properties. Furthermore, uniaxial tensile tests may not adequately represent in-vivo deformations of the tissue.…”

Section: Introductionmentioning

confidence: 99%

Uniaxial and Biaxial Mechanical Properties of Porcine Linea Alba

Cooney¹,

Moerman²

2016

Preprint

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Trocar site hernia (or incisional hernia) is a severe complication post laparoscopic surgery that is commonly associated with the linea alba. However, the few studies on the mechanical properties of the linea alba in the literature appear contradictory, possible due to challenges with the physical dimensions of samples and variations in protocol. This study focuses on the tensile mechanical characterisation of the porcine linea alba, as determined by uniaxial and equi-load biaxial testing using image-based strain measurement methods. Results show that the linea alba demonstrated a non-linear elastic, anisotropic behaviour which is often observed in biological soft tissues. The transverse direction (parallel to fibres) was found to be approximately 8 times stiffer than the longitudinal (cross-fibre) direction under both uniaxial and equi-load biaxial loading. The equi-load biaxial tensile tests revealed that contraction could occur in the transverse direction despite increasing load, probably due to the anisotropy of the tissue. Optical surface marker tracking and digital image correlation methods were found to greatly improve the accuracy of stretch measurement, resulting in a 75% change in the apparent stiffness compared to using strain derived from machine cross-head displacement. Additionally, a finite element model of the experiments using a combination of an Ogden and fibre exponential power law model for the linea alba was implemented to quantify the effect of clamping and tissue dimensions (which are suboptimal for tensile testing) on the results. The preliminary model results were used to apply a correction factor to the uniaxial experimental data prior to inverse optimisation to derive best fit material parameters for the fibre reinforced Ogden model. Application of the model to the equi-load biaxial case showed some differences compared to the experimental data, suggesting a more complex anisotropic model may be necessary to capture biaxial behaviour. These results provide an improved assessment of the mechanical properties of the porcine linea alba for wound closure and other studies.

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Effect of two loading rates on the elasticity of the human anterior rectus sheath

Cited by 33 publications

References 14 publications

Abdominal wall muscle elasticity and abdomen local stiffness on healthy volunteers during various physiological activities

Abdominal wall muscle elasticity and abdomen local stiffness on healthy volunteers during various physiological activities

Contribution of the skin, rectus abdominis and their sheaths to the structural response of the abdominal wall ex vivo

Uniaxial and Biaxial Mechanical Properties of Porcine Linea Alba

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