Table 4 Location of adhesions in peripheral and central sectors between abdominal anatomical structures and the visceral face of meshes of polypropylene versus polypropylene with polyglecaprone versus polyester with porcine collagen implanted intraperitoneally in rats for correction of abdominal wall defect. Location of adhesions Polypropylene (10 animals) Polypropylene Polyglecaprone (10 animals) Polyester Collagen (10 animals) p-value Peripheral 72 (88%) 55 (95%) 52 (96%) *0.005 Central 10 (12%) 3 (5%) 3 (4%) **0.003 Total 82 (100%) 58 (100%) 55 (100%) *0.002 *Kruskal-Wallis test - α = 5% (bilateral) **Fisher’s exact test - α = 5%(bilateral) P-value = 0.005 - Polypropylene versus Polypropylene/Polyglecaprone versus Polyester/Porcine Collagen in relation to adhesions in peripheral sectors. P-value = 0.003 - Polypropylene versus Polypropylene/Polyglecaprone versus Polyester/Porcine Collagen in relation to adhesions in central sectors. P-value = 0.002 - Polypropylene versus Polypropylene/Polyglecaprone versus Polyester/Porcine Collagen in relation to total adhesions in all peripheral sectors.