Philippine Journal of Surgical Specialties Vol. 76, No. 2, July-December 2021, pp 79-86

A Meta-Analysis on the Comparison Between Pediatric Inguinal Herniotomies Performed With and Without Incising the External Oblique Aponeurosis in Terms of Recurrence and Complications

Author(s): Samuel Victor Celi Tan, MD; Antonio D. Catangui, MD, FPSPS, FPCS and Nino P. Isabedra, MD, FPSPS, FPCS

Rationale: There is a diversity of methods in performing pediatric inguinal herniotomy, but no consensus on which is the gold standard. The two most common are the Ferguson technique and the Mitchell Banks technique. The objective of this meta-analysis was to compare the two techniques in terms of hernia recurrence and post-operative complications: namely hematoma, hydrocele, testicular ascent, and testicular atrophy.

Methods: Three randomized controlled trials and one multi-center retrospective study were included in this meta-analysis. Using the Cochrane Collaboration tool and Newcastle-Ottawa quality assessment scale, all studies included were deemed to be of good quality and have low risk of bias. Revman 5.3 was used for all statistical analyses.

Results: There was no significant difference in terms of hernia recurrence between the two techniques (OR = 0.85, 95% CI = 0.31- 2.36). For post-operative complications, hematoma (OR = 0.64, 95% CI = 0.37-1.13), testicular ascent (OR = 0.28, 95% CI = 0.05- 1.50), and testicular atrophy (OR = 2.02, 95% CI = 0.54-7.52) did not differ between the two techniques. Only the incidence of postoperative hydrocele significantly differed between the two techniques, being higher when the external oblique aponeurosis was opened (OR = 0.44, 95% CI = 0.27-0.70).

Conclusion: Performing pediatric inguinal herniotomy without opening the external oblique aponeurosis is a safe procedure and may be recommended as an optimal choice of method for uncomplicated cases.

Key words: Pediatric herniotomy, Mitchell-Banks, Ferguson, external oblique aponeurosis