Intraperitoneal meshes in the repair of abdominal wall defects: comparison of polyester with collagen versus polypropylene with polyglycolic acid.

Objective: To compare the clinical and histological outcomes of the repair of induced abdominal wall defects with Parietex and Optilene Mesh Elastic + Safil in direct contact with abdominal viscera (intraperitoneal position, IPOM).

Methods: Sixteen rabbits were allocated into two groups with 8 animals each, corresponding to evaluation on the 30th and 60th postoperative days. All animals were submitted to two standardized symmetric abdominal wall defects, comprising all muscular layers and the peritoneum, followed by repair through the intraperitoneal placement of two different meshes.