Randomized prospective experimental study, in which the effect of a prophylactic mesh is assessed in the eventration rate diagnosed by CT at one year after surgery in patients with CRC who underwent elective intervention for supra-infraumbilical midline laparotomy, considering as treatment the supra-aponeurotic mesh positioning (experimental group), and comparing it to the standard closing with a continuous suture using slow absorption monofilament.

Randomized prospective experimental study, in which we evaluate patients with CRC who underwent elective intervention for supra-infraumbilical midline laparotomy in order to:

Main objective:

- To assess the effect of the prophylactic mesh in the eventration rate diagnosed by CT at one year after surgery in patients with CRC who underwent elective intervention for supra-infraumbilical midline laparotomy.

Secondary objectives:

• To compare the appearance of complications in the control group and in the experimental group.
• Compare costs derived from short and long-term mesh placement in both groups.

We consider as treatment the supra-aponeurotic mesh positioning (experimental group), and compare it to the standard closing with slow absorption monofilament.

Inclusion Criteria:

• Elective surgery for colorectal cancer.
• Surgery by middle laparotomy.
• Informed consent signed by the patient.
• Age > 18 years.

Exclusion Criteria:

• Midline hernia or eventration.
• Presence of mesh in the abdominal wall because of a previous surgery.
• Palliative surgery.
• Synchronous metastases (Stage IV cancer according to TNM).

Double blind, for the patient and the radiologist who analyses the results of the imaging tests.