Injectable Double Crosslinked Hydrogel-Polypropylene Composite Mesh for Repairing Full-Thickness Abdominal Wall
Yixin Zhao1,2, Xiaopei Li3, Ni Sun4
1Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, 266071, China.
Advanced Healthcare Materials
|March 4, 2024
Summary
A new hydrogel-polypropylene (PP) composite mesh effectively reduces abdominal adhesions after surgery. This innovative mesh lowers inflammation and oxidative stress, offering a promising solution for abdominal wall defect repair.
Area of Science:
- Biomaterials Science
- Surgical Innovation
- Regenerative Medicine
Background:
- Abdominal wall defects necessitate mesh repair, with polypropylene (PP) mesh being standard due to its mechanical strength and tissue integration.
- A significant complication of PP mesh is severe abdominal adhesion formation caused by direct contact with viscera.
- Developing anti-adhesive meshes is crucial for improving patient outcomes in abdominal wall reconstruction.
Purpose of the Study:
- To create and evaluate a novel hydrogel-PP composite mesh with anti-adhesive properties for abdominal wall defect repair.
- To investigate the efficacy of a biofunctional hydrogel loaded with rosmarinic acid in mitigating PP mesh-induced adhesions.
- To assess the composite mesh's impact on local inflammatory response, oxidative stress, and fibrinolysis in vivo.
Main Methods:
- Development of a biofunctional hydrogel by modifying chitosan and Pluronic F127, loaded with rosmarinic acid.
- Preparation of the hydrogel-PP composite mesh by applying the hydrogel to the surface of PP mesh.
- In vivo evaluation in a rat model of full-thickness abdominal wall defects, assessing adhesion formation and related biological responses.
Main Results:
- The hydrogel-PP composite mesh demonstrated reduced abdominal adhesions compared to traditional PP mesh implantation.
- Significant decrease in local inflammatory response and oxidative stress was observed with the composite mesh.
- Effective regulation of the fibrinolytic system contributed to the anti-adhesive properties of the composite mesh.
Conclusions:
- The developed hydrogel-PP composite mesh exhibits significant anti-adhesive properties, alleviating complications associated with PP mesh repair.
- The composite mesh combines the tissue integration benefits of PP with the anti-inflammatory and anti-oxidative effects of the biofunctional hydrogel.
- This innovative composite mesh holds great potential for the clinical treatment of full-thickness abdominal wall defects.
