Patients randomized to this arm will be operated for the primary disease and at the end of the intervention the laparotomy will be closed reinforcing the suture with a swine dermis biological prosthesis positioned sublay

Patients randomized to this arm will be operated for the primary disease and at the end of the intervention the laparotomy will be closed by emi-continuous monofilament sutures with an intermediate-reabsorbable-time suture

The mesh placement will be preceded by the plane preparation. The subcutaneous tissue will be dissociated from the anterior rectum-muscles fascia. The retro-muscular rectum muscles plane will be dissected preparing a 5-6 cm pouch necessary to the prosthesis positioning. The mesh will be fixed with at least 8 long-lasting absorbable transfix stitched. The prosthesis will be placed with at least a 5 cm overlap. If the peritoneal plane can be sutured a Jackson-Pratt 10 suction drain will be placed under the prosthesis. A Jackson-Pratt 10 suction drain will always be placed over the prosthesis. Anterior rectum fascia will be closed by emi-continuous monofilament suture with an intermediate-reabsorbable-time suture. Another Jackson-Pratt 10 suction drain will be placed over the anterior fascia if the subcutaneous tissue is thick. No subcutaneous suture will be performed. Skin stapler or interrupted stitches will be used to close the skin plane.