Materials characterization of explanted polypropylene hernia mesh: Patient factor correlation

Author:

Smith Sarah E1,Cozad Matthew J1,Grant David A1,Ramshaw Bruce J2,Grant Sheila A1

Affiliation:

1. Department of Bioengineering, University of Missouri, USA

2. Advanced Hernia Solutions, FL, USA

Abstract

This study quantitatively assessed polypropylene (PP) hernia mesh degradation and its correlation with patient factors including body mass index, tobacco use, and diabetes status with the goal of improving hernia repair outcomes through patient-matched mesh. Thirty PP hernia mesh explants were subjected to a tissue removal process followed by assessment of their in vivo degradation using Fourier transform infrared, differential scanning calorimetry, and thermogravimetric analysis analyses. Results were then analyzed with respect to patient factors (body mass index, tobacco use, and diabetes status) to determine their influence on in vivo hernia mesh oxidation and degradation. Twenty of the explants show significant surface oxidation. Tobacco use exhibits a positive correlation with modulated differential scanning calorimetry melt temperature and exhibits significantly lower TGA decomposition temperatures than non-/past users. Chemical and thermal characterization of the explanted meshes indicate measurable degradation while in vivo regardless of the patient population; however, tobacco use is correlated with less oxidation and degradation of the polymeric mesh possibly due to a reduced inflammatory response.

Publisher

SAGE Publications

Subject

Biomedical Engineering,Biomaterials

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