Fig. 1

Diagram of the anterior abdominal wall. a The right rectus abdominis muscle, external oblique muscle, and internal oblique muscle were resected. b Section above the arcuate line. c Section below the arcuate line. 1 Rectus abdominis muscle, 2 skin, 3 Scarpa’s fascia, 4 external oblique muscle, 5 internal oblique muscle, 6 transverse abdominis muscle, 7 transversalis fascia, 8 peritoneum, 9 aponeurosis of the external oblique muscle, 10 aponeurosis of the internal oblique muscle, 11 aponeurosis of the transverse abdominis muscle, 12 inferior epigastric vessels, 13 posterior layer of the rectus abdominis, 14 arcuate line, 15 semilunar line