Evaluation methods for mechanical biocompatibility of hernia repair meshes: respective characteristics, application scope and future perspectives

He, Wei; Cao, Guoxin; Gan, Xueping; Fan, Yubo; Pei, Baoqing; Li, Xiaoming

doi:10.1016/j.jmrt.2021.05.086

Cited by 11 publications

(6 citation statements)

References 112 publications

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“…Mechanical properties of the implant are defined as strength, stiffness, elasticity, and compliance [16,18]. Tensile strength as a material constant is defined as maximum strength which solid material has to resist on a unit of area before its disruption or tearing occurs, and it is measured in Pa (or N/cm 2 ) [83][84][85][86][87]. Namely, it is a property of the product itself in case of implants and thus the maximum value of strength of the implant is defined with respect to its width in N/cm.…”

Section: Mechanical Properties and Influencing The Strength Of Meshes...mentioning

confidence: 99%

Surface Modification of Artificial Implants by Hybrid Nanolayers: Antimicrobial Surface Finishing and Strength Tests

Škach,

Šlamborová,

Jelínek Šourková

et al. 2023

Eur Surg Res

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Introduction: The aim of this work is the evaluation of surface modification in surgery of normally used hernia implants and thus improving their antimicrobial properties. The modification consisted of applying hybrid nanolayers with immobilized antiseptic substances (metal cations of Ag, Cu and Zn) by sol-gel method which ensures prolonged effect of these substances and thus enables a greater resistance of the implant towards infection. In this work attention is drawn to the issue of applying hybrid nanolayers, activation of mesh surfaces by physical plasma modification or UV C radiation and influence of these modifications on the mechanical properties of the final meshes. Next work will continue concentrating on the issue of antimicrobial efficacy and eventual toxicity of the prepared layers. Materials and methods: Present day materials of the most commonly used types of implants for reconstruction of the abdominal wall in surgery (PP, PES, PVDF) were tested. Optimum conditions of application of nanolayers by sol-gel method and their thermal stabilization were examined first. Surface modification was verified by scanning electron microscope. The surface of implants was first activated for better adhesion by plasma treatment or UV radiation after preliminary tests. Maximum strength and ductility after activation and hybrid nanolayer modification were objectively measured on a universal Testometric tensile testing machine. Results: The results of surface activation of the meshes (by both plasma treatment or UV C radiation) provided similar and satisfactory results, particular conditions differed based on the type of material of the mesh. Usage of antimicrobial sol AD30 diluted by isopropyl alcohol in 1: 1 proportion appear to be optimal. All tested cases of meshes activated by plasma modification or UV C radiation and with applied nanolayer concluded in a slight reduction of mechanical properties in modified meshes in comparison with the original ones. However, a slight reduction of test values were not of clinical importance. Conclusion: It was verified that surface modification of implants by sol-gel method is effective and technically possible, providing hopeful results.

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Section: Mechanical Properties and Influencing The Strength Of Meshes...mentioning

confidence: 99%

Surface Modification of Artificial Implants by Hybrid Nanolayers: Antimicrobial Surface Finishing and Strength Tests

Škach,

Šlamborová,

Jelínek Šourková

et al. 2023

Eur Surg Res

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“…For example, when the hernia repair mesh is implanted into the human abdominal cavity, it will be subjected to pressure from all directions. [30][31][32] To evaluate the ability of the mesh to resist such pressure, many scholars investigated the effect of the raw materials and fabric structure on the bursting characteristics of warp-knitted surgical mesh. [33][34][35][36] Due to the difference in thickness and density of mesh structures, their bursting performances are different.…”

Section: Static Mechanical Propertiesmentioning

confidence: 99%

Review on the performances and applications of mesh-fabrics

Liu

2022

Journal of Industrial Textiles

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Mesh-fabrics that enable flexible designability and structural mechanical load-bearing have been developing rapidly in the past several decades. Currently, there is an increasing demand for mesh-fabrics with lightweight and high strength in engineering fields. Nevertheless in practice, design, manufacture, and application of mesh-fabrics are often dealt with separately, which could lead to the performances of final products unable to meet the need of specific scenes. This article introduced the classifications and preparation processes of mesh-fabrics. The mechanical properties under various load conditions were described. Then different methods of structural and numerical simulations were reviewed. Current application status of mesh-fabrics were summarized; Finally, several suggestions have been provided to address challenges for the research, development, and application of mesh-fabrics. Look forward to the future, it is expected that mesh-fabrics will play a key role in innovative and high technology engineering fields.

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“…Many of these topics are closely intertwined with the rapid technological advancements in sensor systems, digital cameras, ultrasound methods [11], wireless communication links, material engineering, and 3D printing methods. Computer tomography serves as an efficient visualization tool that can aid in planning ideal hernia repair, particularly for incisional and larger hernias [12][13][14]. This enables hernia surgeons to identify any morphological tissue abnormalities during the preoperative planning phase, enhancing their decision-making capabilities.…”

Section: Introductionmentioning

confidence: 99%

Computational Analysis and Classification of Hernia Repairs

Charvátová,

East,

Procházka

et al. 2024

Applied Sciences

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Problems related to ventral hernia repairs (VHR) are very common, and evaluating them using computational methods can assist in selecting the most appropriate treatment. This study is based upon data from 3339 patients from different European countries observed during the last 12 years (2012–2023), which were collected by specialists in hernia surgery. Most patients underwent standard surgical procedures, with a growing trend towards laparoscopic surgery. This paper focuses on statistically evaluating the treatment methods in relation to patient age, body mass index (BMI), and the type of repair. Appropriate mathematical methods are employed to extract and classify the selected features, with emphasis on computational and machine-learning techniques. The paper presents surgical hernia treatment statistics related to patient age, BMI, and repair methods. The main conclusions point to mean groin hernia repair (GHR) complications of 19% for patients in the database. The accuracy of separating GHR mesh surgery with and without postoperative complications reached 74.4% using a two-layer neural network classification. Robotic surgeries represent 22.9% of all the evaluated hernia repairs. The proposed methodology suggests both an interdisciplinary approach and the utilization of computational intelligence in hernia surgery, potentially applicable in a clinical setting.

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Evaluation methods for mechanical biocompatibility of hernia repair meshes: respective characteristics, application scope and future perspectives

Cited by 11 publications

References 112 publications

Surface Modification of Artificial Implants by Hybrid Nanolayers: Antimicrobial Surface Finishing and Strength Tests

Surface Modification of Artificial Implants by Hybrid Nanolayers: Antimicrobial Surface Finishing and Strength Tests

Review on the performances and applications of mesh-fabrics

Computational Analysis and Classification of Hernia Repairs

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