Figure 7.

Selected pictures represent the histological observations with magnification ×100: (A1, B1, C1, D1, E1, F1) control, synthetic mesh, 6%, 8%, 10%, 12% W/V after 3 weeks; (A2, B2, C2, D2, E2, F2) control, synthetic mesh, 6%, 8%, 10%, 12% W/V after 5 weeks. White arrow: severe inflammation with fibrosis; yellow arrow: giant cell reaction; green arrow: scaffold; blue arrow: capsule. In the control group, a severe inflammatory reaction is present. The score in scaffold groups was gradually subsided over time. In a scaffold with 12% TPU, a dense capsule is formed on both sides.