Investigation of the Mechanical Behavior of Polyester Meshes for Abdominal Surgery: A Preliminary Study

Todros, Silvia; Pachera, Paola; Pavan, Piero G.; Natali, Arturo N.

doi:10.1007/s40846-017-0337-y

Cited by 6 publications

(5 citation statements)

References 36 publications

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“…Statistical analysis reveals that sterilization does not affect the overall mechanical properties of industrial nets at physiological strain levels ( P value >0.05). Indeed, even though polymer mechanical properties are probably changed after sterilization, the mechanical behavior of meshes primarily depends on the structural pattern . Even if sterilization slightly affects polymer crystalline degree, with probable consequences of the single fiber mechanical behavior, this modification has no relevant implications on the overall mechanical properties of the net.…”

Section: Resultsmentioning

confidence: 99%

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Interplay between physicochemical and mechanical properties of poly(ethylene terephthalate) meshes for hernia repair

Todros

Pavan

Pachera

et al. 2017

J of Applied Polymer Sci

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Non-medical-grade industrial nets are often implemented in developing countries as affordable alternative to surgical meshes for hernia repair. Even if there is clear evidence about their repairing reliability, their physicochemical and mechanical properties have been not fully investigated. This works compares three industrial nets with different textile patterns, and a surgical mesh of the same polymer. Nets are autoclave-sterilized and characterized through scanning electron microscope, Raman spectroscopy, thermogravimetric analysis , differential scanning calorimetry, and uniaxial tensile tests. Spectral and thermal analyses reveal that all samples are based on poly(ethylene terephthalate). Differences are found in phase conformations with modifications in amorphous, ordered amorphous, and crystalline domains. Changes in material characteristics do not affect mechanical properties, which are mainly ascribable to the textile pattern. Industrial nets show a stiffening behavior different from the almost linear anisotropic response of surgical mesh. However, non-medical-grade nets could be potentially applied for surgeries once their biocompatibility and in vivo stability have been evaluated. Non-medical-grade industrial nets are used as low-cost alternative to surgical meshes for hernia repair in less developed countries. Nets sterilization modifies their phase conformation, due to the interaction with water, but do not affect mechanical properties. Even tough industrial nets show a different stiffening behavior, physicochemical characterization confirms a similarity to standard surgical meshes.

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Section: Resultsmentioning

confidence: 99%

“…Ambroziak et al . and Todros et al . characterized the mechanical properties of industrial polyester nets via uniaxial tensile testing in two orthogonal directions.…”

Section: Introductionmentioning

confidence: 99%

Interplay between physicochemical and mechanical properties of poly(ethylene terephthalate) meshes for hernia repair

Todros

Pavan

Pachera

et al. 2017

J of Applied Polymer Sci

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“…The elastomer 300 SIL 50-BL is a silicone film of 1.5 mm thickness and was provided by Comitec SNC (Como, Italy). The synthetic mesh is an industrial net (manufactured by Edilacilia, Rome, Italy) already characterized in the literature [18,28].…”

Section: Methodsmentioning

confidence: 99%

“…Indeed, strain gauges need to be physically attached to the specimen and their weight and positioning may influence the mechanical response of the sample [15]. To overcome these disadvantages, non-contact extensometers using a digital video camera and various digital image processing algorithms able to track marker motions [16][17][18] have been widely adopted. Also non-contact techniques still present some limitations, since the accuracy of the markers-tracking and its post-processing can introduce errors.…”

Section: Introductionmentioning

confidence: 99%

Marker Tracking for Local Strain Measurement in Mechanical Testing of Biomedical Materials

et al. 2018

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Purpose Local strain measurement is one of the key aspects in tensile tests of biomedical materials and biological tissues, especially if aimed at developing appropriate constitutive formulations to describe mechanical behavior. The measurement of strain as the ratio between the current and the initial length of the sample can be coupled with markers recognition via non-contact video extensometer for characterizing the local mechanical behavior. A crucial point in video extensometer measurement is the selection of the most appropriate markers and technique of their application on the sample surface. This work promotes understanding the effect of markers on material mechanical response. Methods Different solutions were taken into account, as paint markers, namely a commercial lacquer and an acrylic paint, or physical markers attached with the use of adhesives, i.e. cyanoacrylate or medical spray band. Results Tensile tests revealed that markers can modify the mechanical response of the tested materials, inducing a local stiffening of the samples. Conclusions The use of cyanoacrylate, as marker adhesive, affects not only the local but also the overall mechanical response, at least for the sample size considered in this work. These effects are more pronounced with higher material compliance. Based on these results, caution is recommended with the use of cyanoacrylate for attaching markers on biomedical polymers.

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“…However, due to the high cost of the third-generation meshes, their wide use is limited. A possibility to utilize a cheaper alternative for commercially available meshes was investigated by Todros et al [ 155 ], who compared the properties of two multifilament industrial nests versus a surgical mesh (Parietex™ Lightweight Monofilament Mesh). All materials were made of PET polyester.…”

Section: Surgical Implants (Suture Materials Tissue Adhesives Surgica...mentioning

confidence: 99%

Special Features of Polyester-Based Materials for Medical Applications

Darie-Niță¹,

Râpă

Frąckowiak

2022

Polymers

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This article presents current possibilities of using polyester-based materials in hard and soft tissue engineering, wound dressings, surgical implants, vascular reconstructive surgery, ophthalmology, and other medical applications. The review summarizes the recent literature on the key features of processing methods and potential suitable combinations of polyester-based materials with improved physicochemical and biological properties that meet the specific requirements for selected medical fields. The polyester materials used in multiresistant infection prevention, including during the COVID-19 pandemic, as well as aspects covering environmental concerns, current risks and limitations, and potential future directions are also addressed. Depending on the different features of polyester types, as well as their specific medical applications, it can be generally estimated that 25–50% polyesters are used in the medical field, while an increase of at least 20% has been achieved since the COVID-19 pandemic started. The remaining percentage is provided by other types of natural or synthetic polymers; i.e., 25% polyolefins in personal protection equipment (PPE).

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Investigation of the Mechanical Behavior of Polyester Meshes for Abdominal Surgery: A Preliminary Study

Cited by 6 publications

References 36 publications

Interplay between physicochemical and mechanical properties of poly(ethylene terephthalate) meshes for hernia repair

Interplay between physicochemical and mechanical properties of poly(ethylene terephthalate) meshes for hernia repair

Marker Tracking for Local Strain Measurement in Mechanical Testing of Biomedical Materials

Special Features of Polyester-Based Materials for Medical Applications

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