Impact of the Crohn's disease digestive damage score (Lémann Index) on the perioperative course in patients with Crohn's disease and ileocolic anastomosis.

The Lémann Index might affect surgical decision making but is not linearly associated with postoperative morbidity. However, medium indices (3-10) - mainly accounted for by high amounts of intraabdominal active Crohn`s lesions - showed significantly higher rates of complications, potentially defining a group at risk.