PRELOOP Trial: Synthetic Versus Biological Mesh for Prevention of Incisional Hernia After Loop-ileostomy Closure

Inclusion Criteria: * Anterior resection and TME with temporary loop-ileostomy for rectal carcinoma * 18 years or older * Patient has a life expectancy of at least 12 months. * Patient signs the Informed consent and agrees to attend all study visits Exclusion Criteria: * Patient with a comorbid illness or condition that would precluded the use of surgery (ASA 4-5). * Patients with concurrent or previous malignant tumors within 5 years before study enrollment * Patients with T4b tumors which imposed a multi-organ resection * Patient undergone emergency procedures * Primary rectal surgery along with major concomitant procedures (e.g. hepatectomies, other intestinal resections). * Metastatic disease with life expectancy of less than 12 months * Pregnancy or suspected pregnancy