Long-term anisotropic mechanical response of surgical meshes used to repair abdominal wall defects

Hernández-Gascón, Belén; Peña, Estefanía; Pascual, Gemma; Rodrı́guez, Marta; Bellón, Juan M.; Calvo, Begoña

doi:10.1016/j.jmbbm.2011.09.005

Cited by 46 publications

(29 citation statements)

References 34 publications

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“…The results are shown in terms of force for unit of undeformed width of the sample versus nominal strain in agreement with other representations of experimental data from the literature. 4,5,25,26 The tensile response is shown in the strain range up to 0.2 which encloses the recognized upper physiological limit value of 16 N/cm for the forces acting on the abdominal wall. 25,27…”

Section: Tensile Testssupporting

confidence: 52%

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Mechanical Characterization of Animal Derived Grafts for Surgical Implantation

Pavan

Pachera

Todros

et al. 2016

J. Mech. Med. Biol.

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Bioprostheses obtained from animal models are often adopted in abdominal surgery for repair and reconstruction. The functionality of these prosthetic implants is related also to their mechanical characteristics that are analyzed here. This work illustrates a constitutive model to describe the short-term mechanical response of Permacol TM bioprostheses. Experimental tests were developed on tissue samples to highlight mechanical non-linear characteristics and viscoelastic phenomena. Uni-axial tensile tests were developed to evaluate the strength and strain stiffening. Incremental uni-axial stress relaxation tests were carried out at nominal strain ranging from 10% to 20% and to monitor the stress relaxation process up to 400 s. The constitutive model effectively describes the mechanical behavior found in experimental testing. The mechanical response appears to be independent on the loading direction, showing that the tissue can be considered as isotropic. The viscoelastic response of the tissue shows a strong decay of the stress in the first seconds of the relaxation process. The investigation performed is aimed at a general characterization of the biomechanical response and addresses the development of numerical models to evaluate the biomechanical performance of the graft with surrounding host tissues.

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Section: Tensile Testssupporting

confidence: 52%

“…A clear example of their use is represented by abdominal wall repair and reconstruction. [1][2][3][4][5][6][7][8][9][10] In this surgical application, the mechanical characteristics of the grafts have high relevance.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Characterization of Animal Derived Grafts for Surgical Implantation

Pavan

Pachera

Todros

et al. 2016

J. Mech. Med. Biol.

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“…Copyright © 2008 Mosby, Inc.); ( h ) Parietene ® (image from technical datasheet); ( i ) Mersilene ® (image from technical datasheet); ( l ) Dynamesh ® IPOM; ( m ) Infinit ® (Reprinted from Ref. with kind permission from Elsevier. Copyright © 2011 Elsevier Ltd.); ( n ) Dynamesh ® ENDOLAP.…”

Section: Structural Characteristicsmentioning

confidence: 99%

Synthetic surgical meshes used in abdominal wall surgery: Part I-materials and structural conformation

Todros

Pavan

Natali

2015

J. Biomed. Mater. Res.

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Surgical implants are commonly used in abdominal wall surgery for hernia repair. Many different prostheses are currently offered to surgeons, comprising permanent synthetic polymer meshes and biologic scaffolds. There is a wide range of synthetic meshes currently available on the market with differing chemical compositions, fiber conformations, and mesh textures. These chemical and structural characteristics determine a specific biochemical and mechanical behavior and play a crucial role in guaranteeing a successful post-operative outcome. Although an increasing number of studies report on the structural and mechanical properties of synthetic surgical meshes, nowadays there are no consistent guidelines for the evaluation of mechanical biocompatibility or common criteria for the selection of prostheses. The aim of this work is to review synthetic meshes by considering the extensive bibliography documentation of their use in abdominal wall surgery, taking into account their material and structural properties, in Part I, and their mechanical behavior, in Part II. The main materials available for the manufacture of polymeric meshes are described, including references to their chemical composition, fiber conformation, and textile structural properties. These characteristics are decisive for the evaluation of mesh-tissue interaction process, including foreign body response, mesh encapsulation, infection, and adhesion formation. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2015

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“…Numerous experimental animal studies have examined the outcome of the use of different prosthetic materials [8][9][10][11]. Other studies have focused on analyzing the effects of the anisotropy of a surgical mesh once implanted [8, 9,12].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Response of the Herniated Human Abdomen to the Placement of Different Prostheses

Hernández-Gascón

Peña²,

Grasa

et al. 2013

Journal of Biomechanical Engineering

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This paper describes a method designed to model the repaired herniated human abdomen just after surgery and examine its static mechanical response to the maximum intra-abdominal pressure provoked by a physiological movement (standing cough). The model is based on the real geometry of the human abdomen bearing a large incisional hernia with several anatomical structures differentiated by MRI. To analyze the outcome of hernia repair, the surgical procedure was simulated by modeling a prosthesis placed over the hernia. Three surgical meshes with different mechanical properties were considered: an isotropic heavy-weight mesh (Surgipro®), a slightly anisotropic light-weight mesh (Optilene®), and a highly anisotropic medium-weight mesh (Infinit®). Our findings confirm that anisotropic implants need to be positioned such that the most compliant axis of the mesh coincides with the craneo-caudal direction of the body.

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Long-term anisotropic mechanical response of surgical meshes used to repair abdominal wall defects

Cited by 46 publications

References 34 publications

Mechanical Characterization of Animal Derived Grafts for Surgical Implantation

Mechanical Characterization of Animal Derived Grafts for Surgical Implantation

Synthetic surgical meshes used in abdominal wall surgery: Part I-materials and structural conformation

Mechanical Response of the Herniated Human Abdomen to the Placement of Different Prostheses

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