Polypropylene Surgical Mesh Implants for Hernia and Pelvic Floor Disorders: A Materials Performance Perspective

Area of Science:

• Materials Science
• Biomedical Engineering
• Surgical Innovation

Background:

• Surgical meshes, primarily polypropylene, are used for hernia repair and pelvic reconstructive surgeries (POP, SUI).
• Polypropylene mesh was thought to be inert, but evidence shows in vivo degradation after long-term implantation, leading to complications.

Purpose of the Study:

• To review the physical and mechanical properties of surgical mesh before and after implantation.
• To highlight the importance of post-implantation stability and its impact on device safety.
• To identify research gaps for improving surgical mesh safety and performance.

Main Methods:

• Review of existing literature on surgical mesh properties and degradation.
• Analysis of factors affecting mesh stability and safety.
• Discussion of materials science perspectives on current research gaps.

Main Results:

• Polypropylene surgical mesh undergoes degradation in vivo.
• Changes in mesh properties post-implantation can affect device safety.
• Characterizing effective porosity, mechanical properties, and degradation mechanisms is essential.

Conclusions:

• Further research is needed to understand and mitigate in vivo degradation of surgical meshes.
• Developing accelerated aging methods and IVIVC can improve biostability assessment.
• Addressing materials science gaps will lead to safer and more effective surgical mesh devices.