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Updated: Aug 11, 2026

Application of Straight-needle, Three-tailed, Knot-free, Peritoneal Sutures in Laparoscopic Transabdominal Preperitoneal Hernia Repair
Published on: November 12, 2021
Comparison between the mesenteric fixation method (MEFIX) and conventional methods at preventing the occurrence of
Jae Kyun Park1, Dae Hwan Kim1, Tae-Yong Jeon1
1Department of Surgery, Pusan National University Hospital, Pusan National University School of Medicine, Biomedical Institution, Busan, 49241, Republic of Korea.
Background:
Petersen's hernia, which occurs after Billroth-II (B-II) or Roux-en-Y (REY) anastomosis, can be reduced by defect closure. This study aims to compare the incidence of bowel obstruction above Clavien-Dindo classification grade III due to Petersen's hernia between the mesenteric fixation method and the conventional methods after laparoscopic or robotic gastrectomy.
Methods:
This study was designed as prospective, single-blind, non-inferiority randomized controlled multicenter trial in Korea. Patients with histologically diagnosed gastric cancer of clinical stages I, II, or III who underwent B-II or REY anastomosis after laparoscopic or robotic gastrectomy are enrolled in this study. Participants who meet the inclusion criteria are randomly assigned to two groups: a CLOSURE group that underwent conventional Petersen's defect closure method and a MEFIX group that underwent the mesenteric fixation method. The primary endpoint is the number of patients who underwent surgery for bowel obstruction caused by Petersen's hernia within 3 years after laparoscopic or robotic gastrectomy.
Discussion:
This trial is expected to provide high-level evidence showing that the MEFIX method can quickly and easily close Petersen's defect without increased postoperative complications compared to the conventional method.
Trial Registration:
ClinicalTrials.gov NCT05105360. Registered on November 3, 2021.
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