The aim of this study is to evaluate the safety and efficacy of using Stratafix (a type of symmetric, barbed, and coated suture) for abdominal wall closure in oncologic patients undergoing elective midline laparotomy, compared to the use of a monofilament suture following the Small Stitch technique.

Inclusion Criteria:

• Patients over 18 years of age who will undergo midline laparotomy for oncologic resection of a retroperitoneal tumor or cytoreductive surgery for carcinomatosis of any origin.

Exclusion Criteria:

• Diagnosed incisional hernia.
• When the planned midline laparotomy is expected to be less than 20 cm.
• Patients with a BMI > 45 kg/m².
• Patients with abdominal aortic aneurysm.
• Patients with coagulopathy: previously diagnosed with von Willebrand disease, hemophilia, or idiopathic thrombocytopenic purpura.
• Patients with collagen disorders: previously diagnosed with Marfan syndrome, Ehlers-Danlos syndrome, homocystinuria, or scleroderma.