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Risk Factors for Incisional Hernia in Children

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Incisional hernia (IH) is a major complication of abdominal surgery. Although previous studies reported that the incidence of IH after abdominal surgery in adults was 5–50% and that various independent risk factors were involved, IH in children is still not well known. The objective of our study was to investigate the incidence and risk factors for IH in children.


We retrospectively reviewed all children who underwent abdominal surgery at the Jikei University Hospitals (Jikei University Hospital, Kashiwa Hospital, Katsushika Medical Center and Daisan Hospital) between January 2001 and December 2016. Abdominal surgery in children was defined as open laparotomy and laparoscopic abdominal surgery in patients ≤ 15 years old. Conventional open repair for inguinal hernias, umbilical hernia repair, congenital abdominal defect repair and orchiopexy were excluded.


Overall, 2049 children were performed abdominal surgery. Among them, 14 children (10 males and 4 females) developed IH, and the incidence of IH was 0.68% (14/2049). There is no significant difference between laparotomy and laparoscopic surgery. The statistically significant variables and identified risk factors were operation in neonates, laparoscopic fundoplication and open supraumbilical pyloromyotomy. In all patients who had IH repair, there was no recurrence during the follow-up period 50.4 months (range 1 months–10 years) except two recurrence cases.


The incidence of IH in children is significantly lower than that in adults, and the above three risk factors were revealed. Before abdominal surgery, we recommend that pediatric surgeons should mention the risk of developing IH when the patient has the above risk factors.

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Correspondence to Keiichiro Tanaka.

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Tanaka, K., Misawa, T., Ashizuka, S. et al. Risk Factors for Incisional Hernia in Children. World J Surg 42, 2265–2268 (2018).

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