A randomized controlled experimental study comparing chitosan coated polypropylene mesh and Proceed™ mesh for...

Area of Science:

• Biomaterials Science
• Surgical Innovation
• Regenerative Medicine

Background:

• Abdominal wall defects and hernias often require repair with synthetic or biological materials, facing challenges with adhesions and recurrence.
• Current mesh materials can lead to complications such as adhesions and re-herniation.
• Novel mesh coatings are being investigated to improve outcomes in abdominal wall reconstruction.

Purpose of the Study:

• To compare the efficacy of Chitosan coated polypropylene mesh against Proceed™ mesh (polypropylene-polydioxanone composite with oxidized cellulose coating) in a rabbit hernia model.
• To evaluate the anti-adhesive properties, tissue integration, and remodeling capacity of Chitosan coated polypropylene mesh.
• To assess the safety and effectiveness of these meshes in abdominal wall defect repair.

Main Methods:

• A randomized controlled experimental study involving twelve New Zealand white rabbits with surgically created ventral abdominal defects.
• Rabbits were divided into two groups, one receiving Chitosan coated polypropylene mesh and the other Proceed™ mesh for defect repair.
• Post-operative evaluation at four and twelve weeks included open exploration and histopathological examination to assess adhesion, tissue integration, and remodeling.

Main Results:

• No statistically significant differences were observed between the Chitosan and Proceed™ groups regarding adhesion area, force to remove adhesions, tissue integration, or remodeling.
• Histological analysis indicated similar inflammatory responses, fibrosis, material degradation, and remodeling in both mesh groups.
• No instances of hernia recurrence, wound infection, or wound dehiscence were reported in any of the rabbits studied.

Conclusions:

• Chitosan coated polypropylene mesh exhibited similar efficacy to Proceed™ mesh in the repair of abdominal wall defects.
• Chitosan coated polypropylene mesh demonstrated potential as an effective anti-adhesive barrier in the context of incisional hernia and abdominal wall defect repair.
• The study suggests Chitosan coated polypropylene mesh is a viable alternative for hernia repair, offering comparable outcomes to existing composite meshes.