A Polypropylene-Integrated Bilayer Composite Mesh with Bactericidal and Antiadhesive Efficiency for Hernia Operations

Area of Science:

• Biomaterials Science
• Surgical Innovation
• Tissue Engineering

Background:

• Polypropylene (PP) mesh is a standard for hernia repair but can cause peritoneal adhesions, a significant complication.
• Existing adhesion prevention methods include gels, membranes, and bilayer meshes, with the latter offering dual functionality.
• Developing advanced bilayer meshes is crucial for improving hernia repair outcomes and patient recovery.

Purpose of the Study:

• To develop an easy and effective method for creating a multifunctional PP-integrated bilayer mesh.
• To incorporate poly(lactic-co-glycolic acid) and chitosan for enhanced properties.
• To evaluate the material characteristics, biocompatibility, and efficacy in preventing adhesions.

Main Methods:

• Electrospinning a poly(lactic-co-glycolic acid)-chitosan layer onto a PP mesh without neutralization.
• Characterization of material properties and in vitro assessment of bactericidal activity against Escherichia coli and Staphylococcus aureus.
• In vivo studies to evaluate tissue compatibility and adhesion prevention efficacy.

Main Results:

• The developed PP-integrated bilayer composite mesh exhibited significant bactericidal activity.
• The mesh demonstrated excellent tissue compatibility in in vivo evaluations.
• The composite mesh proved highly effective in preventing peritoneal adhesion.

Conclusions:

• The novel PP-integrated bilayer mesh offers a promising solution for hernia repair with adhesion prevention.
• The electrospinning method provides an efficient route to produce multifunctional composite meshes.
• This bilayer mesh technology has the potential to reduce surgical complications and improve hernia treatment.