Implementation of a new constitutive model for abdominal muscles

Tuset, Lluís; Fortuny, Gerard; Herrero, Joan; Puigjaner, Dolors; López, Josep M.

doi:10.1016/j.cmpb.2019.104988

Cited by 12 publications

(7 citation statements)

References 30 publications

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“…Numerical simulations can complement clinical studies and can provide data that help abdominal surgeons in their decisions. In the present study, we applied the finite element (FE) computational setup previously developed by Tuset et al 21 to investigate the effect of different transperitoneal stoma locations on the biomechanical behavior of the AW. We considered seventeen different locations for stoma incisions and we focused our analysis in two aspects.…”

Section: Introductionmentioning

confidence: 99%

Virtual simulation of the biomechanics of the abdominal wall with different stoma locations

Tuset

López-Cano

Fortuny

et al. 2022

Sci Rep

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An ostomy is a surgical procedure by which an artificial opening in the abdominal wall, known as a stoma, is created. We assess the effects of stoma location on the abdominal wall mechanics. We perform three-dimensional finite element simulations on an anatomy model which was generated on the basis of medical images. Our simulation methodology is entirely based on open source software. We consider seventeen different locations for the stoma incision (trephine) and we simulate the mechanical response of the abdominal wall when an intraabdominal pressure as high as 20 kPa is applied. We focus on factors related to the risk of parastomal hernia development such as the deformation experienced by the abdominal wall, the stress levels supported by its tissues and the corresponding level of trephine enlargement. No significant dependence was found between stoma location and the levels of abdominal wall deformations or stress supported by tissues, except for the case with a stoma located on the linea alba. Trephine perimeter and area respectively increased by as much as $$44\%$$ 44 % and $$85\%$$ 85 % . The level of trephine deformation depends on stoma location with considerably higher trephine enlargements found in stomas laterally located with respect to the rectus abdominis muscle.

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Section: Introductionmentioning

confidence: 99%

Virtual simulation of the biomechanics of the abdominal wall with different stoma locations

Tuset

López-Cano

Fortuny

et al. 2022

Sci Rep

Self Cite

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“…Post mortem investigation has certain limitations (Deeken and Lake, 2017), such as: effects of freezing, dehydration, rigor mortis and the analysis often based on aged donors, which may not correspond to the response of younger tissues. The existing numerical models of abdominal wall (Hernández-Gascón et al, 2013;Pachera et al, 2016;Tuset et al, 2019) are mainly based on material properties identified from ex vivo test, to possibly interfere the prediction accuracy of a living human abdominal wall performance. While mechanical properties of living tissues are highly variable within testing, the material parameters uncertainty should be also taken into account.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, a credible computational model of abdominal wall may require employing hyperelastic constitutive law including anisotropy related to fiber architecture (like e.g. the model of Tuset et al, 2019). Simón-Allué et al (2015) developed the idea of measurements carried out during laparoscopic repair on an animal model to identify parameters of a hyperelastic isotropic material law and their spatial distribution in the rabbit abdominal wall (Simón-Allué et al, 2017), additionally, to study the effects of implanting surgical meshes on an animal model (Simón-Allué et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

A novel in vivo approach to assess strains of the human abdominal wall under known intraabdominal pressure

Lubowiecka,

Szepietowska,

Tomaszewska

et al. 2021

Preprint

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The study concerns mechanical behaviour of a living human abdominal wall.A better mechanical understanding of a human abdominal wall and recognition of its material properties is required to find mechanically compatible surgical meshes to significantly improve the treatment of ventral hernias.A non-invasive methodology, based on in vivo optical measurements is proposed to determine strains of abdominal wall corresponding to a known intraabdominal pressure. The measurement is performed in the course of a standard procedure of peritoneal dialysis. A dedicated experimental stand is designed for the experiment. The photogrammetric technique is employed to recover the three-dimensional surface geometry of the anterior abdominal wall at the initial and terminal instants of the dialysis. This corresponds to two deformation states, before and after filling the abdominal cavity with dialysis fluid.The study provides information on strain fields of living human abdominal wall. The inquiry is aimed at principal strains and their directions, observed at the level from -10% to 17%. The intraabdominal pressure related to the amount of introduced dialysis fluid measured within the medical procedure covers the

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“…Numerical simulations can complement clinical studies and can provide data that help abdominal surgeons in their decisions. In the present study, we applied the finite element (FE) computational setup previously developed by Tuset et al 12 to investigate the effect of different transperitoneal stoma locations on the biomechanical behavior of the AW. We considered seventeen different locations for stoma incisions and we focused our analysis in two aspects.…”

Section: Introductionmentioning

confidence: 99%

Stoma location and Parastomal Hernia. A Virtual Simulation Approach.

Tuset

López-Cano

Fortuny

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

An ostomy is a surgical procedure by which an artificial opening in the abdominal wall, known as a stoma, is created. We assessthe effects of stoma location on the abdominal wall mechanics. We perform three–dimensional finite element simulations on ananatomy model which was generated on the basis of medical images. Our simulation methodology is entirely based on opensource software. We consider seventeen different locations for the stoma incision (trephine) and we simulate the mechanicalresponse of the abdominal wall when an intraabdominal pressure as high as 20 kPa is applied. We focus on factors relatedto the risk of parastomal hernia development such as the deformation experienced by the abdominal wall, the stress levelssupported by its tissues and the corresponding level of trephine enlargement.No significant dependence was found between stoma location and the levels of abdominal wall deformations or stress supportedby tissues, except for the case with a stoma located on the linea alba. Trephine perimeter and area respectively increased byas much as 44% and 85%. The level of trephine deformation depends on stoma location with considerably higher trephineenlargements found in stomas laterally located with respect to the rectus abdominis muscle.

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Implementation of a new constitutive model for abdominal muscles

Cited by 12 publications

References 30 publications

Virtual simulation of the biomechanics of the abdominal wall with different stoma locations

Virtual simulation of the biomechanics of the abdominal wall with different stoma locations

A novel in vivo approach to assess strains of the human abdominal wall under known intraabdominal pressure

Stoma location and Parastomal Hernia. A Virtual Simulation Approach.

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