Related Experiment Video
Updated: Jan 9, 2026

Application of Straight-needle, Three-tailed, Knot-free, Peritoneal Sutures in Laparoscopic Transabdominal Preperitoneal Hernia Repair
Published on: November 12, 2021
Postoperative pain after laparoscopic percutaneous extraperitoneal closure for inguinal hernia in children: a
Shoko Kato1, Kenitiro Kaneko2, Nozomi Matsushita2
1Department of Gastroenterological Surgery, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan. katou.shouko.765@mail.aichi-med-u.ac.jp.
Insights
Chronic postoperative inguinal pain (CPIP) is rare in children after laparoscopic hernia repair. Adolescent females face a higher risk, with round ligament issues identified in one case.
Area of Science:
- Pediatric Surgery
- Pain Management
- Hernia Repair Outcomes
Background:
- Chronic postoperative inguinal pain (CPIP) is a known complication in adult hernia repairs.
- Limited data exists regarding CPIP incidence and characteristics in pediatric populations.
Purpose of the Study:
- To investigate the occurrence and characteristics of CPIP in children following laparoscopic percutaneous extraperitoneal closure (LPEC).
- To identify risk factors and potential causes of CPIP in pediatric patients.
Main Methods:
- Retrospective chart review of 855 children (0-18 years) who underwent LPEC between April 2016 and December 2023.
- Pain after one postoperative month (PIP) was the primary outcome, with CPIP defined as pain lasting over three months.
Main Results:
- Nine children (1.1%) experienced PIP, with three adolescent females (0.35%) developing CPIP.
- Males undergoing LPEC before puberty had temporary pain.
- CPIP in females was treated with psychiatric approaches or reoperation for round ligament release.
Conclusions:
- CPIP is infrequent following LPEC in pediatric patients.
- Adolescent females represent a higher-risk group for developing CPIP.
- Round ligament pain is a potential cause of CPIP in this population.
Background:
Chronic postoperative inguinal pain (CPIP) is a major complication after hernia repairs in adults. However, little is known about CPIP in children.
Methods:
Charts of 855 children with an average age of 3.7 years (range, 0-18 years) who underwent laparoscopic percutaneous extraperitoneal closure (LPEC) between April 2016 and December 2023 were reviewed. Pain after one postoperative month (PIP: postoperative inguinal pain) was the primary outcome measure. Of these, pain lasting more than three months was extracted as CPIP.
Results:
Nine children (1.1%, four males and five females) complained of PIP. All four males, having undergone LPEC before puberty, had temporary pain. Among four females with PIP, CPIP occurred in three (0.35%), who were effectively treated with psychiatric approaches in two and by a reoperation to release the round ligament in one.
Conclusions:
CPIP was rare after LPEC in children. Adolescent females were at greater risk of CPIP than younger males. Round ligament pain was the cause in one case.
Trial Registration:
This study was approved by the institutional review board of Aichi Medical University (approval number: 2023 - 241).

