A randomized clinical study on postoperative pain comparing the Polysoft patch to the modified Kugel patch for transinguinal preperitoneal inguinal hernia repair

Purpose The transinguinal preperitoneal approach is a relatively new technique for inguinal hernia repair. Two types of memory-ring mesh are available in Japan: the modified Kugel patch (MK) and the Polysoft patch (PP). We tested the hypothesis that the PP is noninferior to the MK with respect to chronic postoperative pain.