Fig. 3

Intraoperative photographs. a The stricture has been located in the lower rectum. b A full-thickness incision parallel to the axis of the rectum has been made at the 9 o’clock position of the stricture. c A similar incision has been made at the 3 o’clock position. d The stricture wall was been cut from 9 o’clock to 7 o’clock and 3 o’clock to 6 o’clock