Abdominal bulging was defined as a prominent convex contour difference in standing position in the infra-umbilical anterior abdominal wall of the donor-site, without a known underlying fascial defect. Abdominal bulging was evaluated by one of the surgeons during physical examination at the outpatient clinic after an average of 7 (range, 1–13) months, assisted with ultrasound sonography or CT when necessary.
Abdominal hernia was defined as a palpable fascial defect with convex contour difference evaluated during physical examination, supported by ultrasound sonography or CT.