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Herniotomy Alone Shows No Clear Advantage or Inferiority for Inguinal Hernia Recurrence in Young Patients
A systematic review and meta-analysis of 42,726 patients aged 10–30 years found no statistically significant difference in hernia recurrence between herniotomy alone and alternative repair techniques (log RR 0.47, 95% CI −0.17 to 1.10; p = 0.147). However, a sensitivity analysis excluding one influential study shifted the result toward higher recurrence with herniotomy alone (log RR 0.73, 95% CI 0.31–1.16; p < 0.001), introducing meaningful uncertainty about the technique’s adequacy across this population.
What Was Studied
This review examined whether herniotomy alone (HA) — the simple high ligation of the hernia sac without structural reinforcement — is sufficient for treating primary inguinal hernias in adolescents and young adults, using hernia recurrence as the primary outcome. The question is clinically pressing because this transitional age group sits between established pediatric and adult surgical paradigms, leaving treatment decisions without a clearly defined evidence base.
How It Was Studied
The authors conducted a systematic review and meta-analysis adhering to PRISMA 2020 guidelines and registered prospectively in PROSPERO. Five major databases — PubMed/MEDLINE, Embase, Scopus, Web of Science, and Google Scholar — were searched from inception through March 2026. Ten studies involving a total of 42,726 patients aged 10–30 years who underwent primary inguinal hernia repair were included. Only one of the ten studies was a randomized controlled trial; the remaining nine were observational in design. A random-effects model using log risk ratios was applied, and both subgroup and sensitivity analyses were pre-planned to explore sources of variability.
What Was Observed
- No significant difference in recurrence in the primary analysis: Herniotomy alone was not associated with a statistically distinguishable change in recurrence risk compared with alternative repair techniques — the point estimate suggested a trend toward higher recurrence with HA, but the confidence interval crossed zero, indicating no reliable difference (log RR 0.47, 95% CI −0.17 to 1.10; p = 0.147).
- Sensitivity analysis shifted findings toward higher recurrence with HA: After excluding one study identified as disproportionately influential, the association became statistically significant, suggesting approximately twice the recurrence risk with herniotomy alone — a finding that meaningfully undermines confidence in the neutral primary result (log RR 0.73, 95% CI 0.31–1.16; p < 0.001).
- Moderate heterogeneity across studies: The pooled analysis showed moderate between-study variability (I² = 61%), meaning results were not fully consistent across included studies, which limits the interpretability of the overall estimate.
- Subgroup analyses were non-discriminatory: Stratification by patient age and repair type did not reveal statistically significant differences between subgroups, offering no clear guidance on which patient subsets might benefit from one approach over the other.
Why This Matters
Adolescents and young adults with inguinal hernias represent a poorly defined surgical population — too old for automatic application of pediatric principles, yet too young for unmodified adult hernia repair protocols. This review directly highlights that evidence gap, demonstrating that neither herniotomy alone nor alternative reinforcement techniques can currently be recommended as universally superior. The authors conclude that an individualized approach incorporating patient-specific and anatomical factors is warranted, rather than a one-size-fits-all strategy.
How to Read This Result
Given the low certainty of evidence, moderate heterogeneity, predominantly observational study base, and the sensitivity of the primary finding to a single influential study, these results should be interpreted as exploratory rather than definitive, and do not yet provide sufficient grounds to establish a standard-of-care recommendation for this age group.
Limitations
The evidence base carries several important constraints. Only one of ten included studies was a randomized controlled trial, leaving the pooled estimate heavily reliant on observational data prone to confounding. Moderate heterogeneity (I² = 61%) signals meaningful variability in populations, techniques, or follow-up duration across studies. Crucially, the primary finding of no significant difference reversed direction when a single influential study was excluded in sensitivity analysis, raising concerns about result stability. The overall certainty of evidence was rated as low. Additionally, the overlap between pediatric and adult surgical strategies within the 10–30 year age range complicates uniform interpretation and likely introduces clinical heterogeneity not fully captured in the quantitative analysis.