Now grasp the facial edges with one or more sharp forceps and retract them anteriad/laterad. At the same time pull the intestines posteriad. This will put tension on the adherent intestinal structures. The boundary between the parietal peritoneum and the intestine can always be found this way, and then carefully take down the structures in this region with scissors. The same applies to adherent omental structures.
Note: This surgical step calls for a lot of experience. Traction and countertraction must be precisely controlled to avoid tearing the intestines. Some adhesions may also be divided by blunt dissection with the fingers. If a clear border with the abdominal wall is impossible to identify, the parietal peritoneum may be included in the resection in places.
In this way, proceed laterad and along the longitudinal axis step by step. Once the edges of the fascia have been freed far enough on all sides, insert an abdominal wall retractor.