The Free Jejunum Flap
The small bowel is supplied by the superior mesenteric artery (SMA). The bowel is held by the mesentery, the base of which travels from the left upper quadrant at the ligament of Treitz to the right lower quadrant and the terminal ileum. The SMA distributes more than 10 major branches to the small bowel. The second or third branch provides adequate pedicle length and length of jejunum to supply the flap.