Open research questions in Hernia repair and management

What the literature leaves open

• In addition, chronic steroid use was not con- sistently documented in our dataset and therefore could not be evaluated as a potential risk factor for recurrence. At our institution, standard follow-up is at 2 weeks, 3 months, and 12 months postoperatively, with no standard follow-up beyond 1 year. Therefore, additional longer-term symptomatic survey of this cohort is warranted.

  Contemporary operative and clinical outcomes of primary robotic repair of paraesophageal hernia at a high-volume center · 2026 · DOI

• Measuring chronic pain as a claim reason following eco- nomic claims represents a clinically significant problem that may only reflect the tip of the iceberg. Thus, an economic complaint of long-term chronic pain after a minor non-acute surgical procedure may potentially be used in future studies as an important surrogate for long-term deprived quality of life.

  Economic claims following chronic pain after inguinal hernia repair · 2026 · DOI

• Longitudinal abdominal wall elasticity appears to be a relevant factor influencing the difficulty of robot-assisted groin hernia repair, whereas BMI and AEA alone are insufficient predictors.

  Anthropometric measurements of the abdominal wall: toward standardization and difficulty grading in rTAPP inguinal · 2026 · DOI

• To date, anthropometric data regarding the distance from the umbilicus to the symphysis and the Abdominal Elevation Angle (AEA) are lacking, both of which may be relevant for preoperative estimation of procedural difficulty and for the standardization of the surgical technique.

  Anthropometric measurements of the abdominal wall: toward standardization and difficulty grading in rTAPP inguinal · 2026 · DOI

• Future research should move beyond binary mesh-versus-no-mesh comparisons. The next generation of studies should compare mesh geometry, placement plane, fixation method, and patient selection. Trials should stratify by BMI, diabetes, chemotherapy, abdominal wall hernia history, sarcopenia, surgical approach, and stoma site. Outcomes should include symptomatic parastomal hernia, appliance difficulty, patient-reported quality of life, hernia progression, reoperation, cost-effectiveness, and long-term mesh complications. Pragmatic implementation studies are also needed. A technique that works in expert Scandinavian centres may not reproduce identical results in lower-volume units without structured training. Registry-based follow-up could capture late complications and real-world effectiveness more efficiently than repeated small trials.

  Prevention of Parastomal Hernia and the Prophylactic Mesh Debate: A Critical Appraisal of the Chimney Trial · 2026 · DOI

• This review has several limitations. First, all included stud- ies are retrospective, with the inherent risks of selection bias and inconsistent outcome ascertainment; none of the included series specified the proportion of inguinal hernia repairs performed robotically at the institutional level or the criteria used to allocate cases to a robotic versus lapa- roscopic approach, which limits the assessment of selection bias. Second, CUSUM was applied heterogeneously: target values, risk-adjustment approaches, and phase boundary cri- teria differed across studies. Third, individual-level variance estimates for the inflection point are not available, which is why we chose a scoping review framework and used bootstrap confidence intervals on the summary statistics rather than inferential meta-analytic pooling; even descrip- tive aggregation simplifies methodological differences between studies, a limitation we have made explicit. Fourth, surgeon-level covariates were inconsistently reported — in particular, none of the included studies reported surgeon age or years from completion of training, both of which are plausibly relevant to the speed of robotic skill acqui- sition. Fifth, anaesthetic protocols (including opioid-free pathways) were not described in any series, precluding any inference on their potential modulation of recovery and dis- charge timing. Sixth, publication bias is likely: series with rapid learning curves are probably easier to publish, and grey-literature screening can only partly mitigate this. Sev- enth, some studies counted patients while others counted procedures (bilateral = two), which inflates the inflection point in cohorts with high bilateral rates. Eighth, ‘inflection point’ itself meant different things across studies — end of a learning phase vs. sustained performance standard, with or without safety adjustment — and treating these as a common descriptive marker is a pragmatic approximation. Ninth, all data come from Da Vinci platforms; transfer- ability to alternative robotic systems (Hugo RAS, Versius, Senhance) is unknown. Tenth, no study reported long-term patient-centred outcomes (recurrence, chronic pain, return to activity) stratified by learning phase — the outcomes that ultimately define the quality of an inguinal hernia repair. Eleventh, the analysis is collectively underpowered to detect clinically meaningful differences in safety outcomes between phases, and the absence of statistically significant differences should not be read as evidence of equivalence. Finally, the review addresses adult inguinal hernia exclu- sively; paediatric anatomical variants (congenital aetiology, peritoneal-vaginal duct persistence) were out of scope.

  Learning curve of robotic-assisted transabdominal preperitoneal inguinal hernia repair (r-TAPP): a scoping review of CUSUM-based studies · 2026 · DOI

• Over the 30 years, the rising incidence numbers of hernias has highlighted a critical public health issue, with a more significant impact on males yet displaying a recent decline in females post- 2018, pointing to the need for further research into the reasons behind these sex differences.

  Global, regional, and national burden of inguinal, femoral, and abdominal hernias: a systematic analysis of prevalence, incidence, deaths, and DALYs with projections to 2030 · 2024 · DOI

• Daniel Ion1,2, Alexandra Bolocan1,2, Ruxandra D. Sinescu-Băltățeanu1,3, Octavian Andronic1,2, Ana-Maria Oproiu1,4, Adelina Popa1,5, Mihai C. Dumitrașcu1,6, Dan N. Păduraru1,2 Abstract: The interparietoperitoneal (IPP) space, by a broad definition, is the space between the musculo-fascial walls of the abdomen and the parietal peritoneum. A review of the literature on this subject has been performed through a search in the databases according to the following keywords: Bogros space, Retzius space, preperitoneal approach, and urogenital fascia. We have also analyzed the video recordings of the dissections of the inguinopreperitoneal region during TAPP, conducted by a single team, evaluating the dissection planes in the two compartments (medial and lateral) of the IPPS. Based on the latest data from the literature, as well as on our own experience in laparo-endoscopic herniation surgery, we aim to provide answers to several questions. IPPS from the inguinal region is an area as complex as it is narrow, but of great current surgical interest (approaches of hernias, vessels, prostate). The fascial distribution has its origin in the embryological development of the urogenital apparatus. The basic fascial structure in understanding IPPS compartmentalization is the UGF, along with its extensions. Keywords: interparietoperitoneal space, Bogros space, Retzius space, preperitoneal approach, urogenital fascia INTRODUCTION The interparietoperitoneal (IPP) space, by a broad definition, is the space between the musculo-fascial walls of the abdomen and the parietal peritoneum. In classic anatomy descriptions, it is depicted as a virtual space, filled with adipose/fibroareolar tissue. It is Bogros' merit to have broadened the perspective on a portion of the IPPS in 1823, one of only 13.5/15.5 mm, through which continuity between the anterior and posterior IPP space is obtained.

  Anatomic-surgical study on the interparietoperitoneal space from a laparo-endoscopic perspective · 2022 · DOI

• findings compare associated with Limitations limitations This study has certain that should be considered while interpreting the results.

  Double strip fascial reinforcement of inguinal hernia: optimized tissue repair technique · 2026 · DOI

• Further studies with longer-term clinical and radiological follow-up are warranted to validate the durability and efficacy of this approach.

  Mesh reconstruction of the myopectineal region following wide local excision for inguinofemoral tumors · 2026 · DOI

• The inflammatory process was limited to the appendiceal tip, there was no purulent contamination, no perforation, and the appendiceal base remained viable.

  Amyand's Hernia with Necrotic Appendiceal Tip Successfully Managed by Appendectomy and Lichtenstein Mesh Repair: A Case Report and Literature Review · 2026 · DOI

• Further, as this was a training institution, attending surgeons and surgical fellows would switch roles as leads during the case and as such the recorded physical exposure may not be representative of a single attending completing the entire case.

  Physical demands of hernia repair segments and the effect of exoskeleton support · 2026 · DOI

• The main limitation of this study is the relatively short and unequal follow-up between groups, which precluded the assessment of long-term outcomes such as hernia recurrence and chronic pain.

  Surgical management of large ventral hernias following damage control surgery: a retrospective comparison of laparoscopic IPOM plus and open repair techniques · 2026 · DOI

• Clinical presentation varies widely, ranging from acute respiratory, gastrointestinal, or cardiovascular symptoms to incidental detection in asymptomatic patients.

  Laparoscopic repair of a rare Morgagni hernia: A case report · 2026 · DOI

• However, the evidence remains limited to observational studies; therefore, protocol standardization and controlled clinical trials are required to increase the level of evidence and allow this sequential therapeutic method to become a standard of care in routine clinical practice.

  Botulinum toxin type A and progressive pneumoperitoneum for loss-of-domain hernia: a narrative review · 2026 · DOI

• Hernias affect millions of individuals worldwide and represent a significant public health burden, yet the genetic mechanisms underlying hernia development and the extent to which they are shared across anatomical subtypes remains incompletely understood.

  Decoding the genetic architecture of hernia through genome-wide association and multi-trait analyses · 2026 · DOI

• The paper presents a single case report without comparative analysis or systematic review of similar cases, limiting the ability to establish best practices and standardized management protocols.

  A Case of Ureter Herniation in the Petit Triangle · 2026 · DOI

• Ureter herniation in the Petit triangle is described as a rare case with limited documentation in medical literature, indicating insufficient data on incidence, presentation patterns, and outcomes.

  A Case of Ureter Herniation in the Petit Triangle · 2026 · DOI

• One drawback of published studies is the lack of consensus over definition of chronic pain, which makes it complicated to compare the results of different studies and to conduct meta-analyses and systematic reviews.

  Chronic pain after open inguinal hernia repair · 2015 · DOI

Most-cited papers in Hernia repair and management

• Global, regional, and national burden of inguinal, femoral, and abdominal hernias: a systematic analysis of prevalence, incidence, deaths, and DALYs with projections to 2030 · International Journal of Surgery · 2024 · 151 citations
• Chronic pain after open inguinal hernia repair · Postgraduate Medicine · 2015 · 43 citations
• Recto-intercostal fascial plane block: Another novel fascial plane block · Journal of Clinical Anesthesia · 2023 · 30 citations
• What do we currently know about incisional complications of colic surgery? · Equine Veterinary Education · 2023 · 12 citations
• High-resolution ultrasound of spigelian and groin hernias: a closer look at fascial architecture and aponeurotic passageways · Journal of Ultrasonography · 2021 · 8 citations
• Use of barbed suture for thoracoscopic repair of diaphragmatic hernias: Three cases · Equine Veterinary Education · 2022 · 8 citations
• The history of inguinal hernia surgery · Perspectives in Surgery · 2023 · 6 citations
• Amyand’s Hernia as a Random Finding in Acute Abdominal Pain and the Role of Thorough Investigation: a Case Report · MAEDICA – a Journal of Clinical Medicine · 2022 · 6 citations
• A Comprehensive Review of Inguinal Hernia Occurrence in Obese Individuals · MAEDICA – a Journal of Clinical Medicine · 2023 · 5 citations
• Minimally invasive repair of congenital inguinal hernias in nine foals using an automated laparoscopic suturing device and barbed suture · Equine Veterinary Education · 2023 · 5 citations

Most recent work

• Decoding the genetic architecture of hernia through genome-wide association and multi-trait analyses · medRxiv · 2026
• Mesh Placement and Risk of Recurrence and Bowel Obstruction After Primary Ventral Hernia Repair · JAMA Surgery · 2026
• A Case of Ureter Herniation in the Petit Triangle · Clinical Practice and Cases in Emergency Medicine · 2026
• Application of machine learning and deep learning in the diagnosis and treatment of inguinal hernia: a narrative review · Frontiers in Medicine · 2026
• Formulation And In-Vitro Assessment Of A Collagen Peptide Composite Mesh With An Antibiotic For Inguinal Hernia Repair · International Journal of Drug Delivery Technology · 2026
• The Modern Landscape of Hernia Disease Repair: From Anatomy to Advanced Robotics – A Systematic Review of Animal-Based Clinical Outcomes and Recurrence · Journal of Pharmaceutical Research and Integrated Medical Sciences · 2026
• Does Inguinal TAPP Repair Increase the Rate of Midline Supraumbilical Trocar Site Hernia?—A Single-Center Retrospective Study · Journal of Clinical Medicine · 2026
• Durability of Practice Change in Hernia Surgery Following De-implementation of Intensive Implementation Strategies · Annals of Surgery · 2026
• Quality of life, postoperative outcomes and hernia recurrence following laparoscopic intracorporeal rectus aponeuroplasty (LIRA) for incisional and primary ventral hernia repair · Updates in Surgery · 2026
• Is distance a barrier to postoperative follow-up? a cox proportion analysis of geographic, financial, and clinical factors in ventral hernia repair outcomes · Hernia · 2026

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