Local Wound Infiltration With 0.5% Levobupivacaine for Postoperative Pain After Laparoscopic Colorectal Surgery.

The infiltration group will receive local infiltration with 0.5% Levobupivacaine. The trocar insertion sites are infiltrated before the skin incision is made. Using the Lap-Assist Transversus Abdominis Plane Block Technique, the total volume of infiltrated 0.5% Levobupivacaine is 20 ml, divided proportionally according to the length of the skin incision (2 ml for the 5-mm trocar and 3 ml for the 10-mm trocars, and 10 mL for specimen retrieval incision). The specimen retrieval incision will be performed in one of two techniques, depending on the surgeon's preference, a 4-6 cm length midline incision (extending from the Hasson trocar incision) or a 4-6 cm length Pfanensteil incision.

No infiltration