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Related Concept Videos

Hiatal Hernia01:25

Hiatal Hernia

A hiatal hernia is the abnormal protrusion of the stomach or other abdominal organs through the esophageal hiatus of the diaphragm into the thoracic cavity.Normally, the gastroesophageal junction (GEJ) lies below the diaphragm and is supported by the phrenoesophageal membrane, the diaphragmatic crura, and connective tissues. Weakening of these structures—due to aging, congenital defects like a short esophagus, or increased intra-abdominal pressure from coughing, obesity, pregnancy, or heavy...

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Related Experiment Video

Updated: Jun 24, 2026

Laparoscopic Repair of Para-Esophageal Hernia Using Absorbable Biosynthetic Mesh
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Do we really need three-dimensional convex inguinal hernia meshes?

R Chrzan1, K Karbowski2, A Pasternak3

  • 1Department of Radiology, Jagiellonian University Medical College, Kopernika 19, 31-501, Kraków, Poland. robert.chrzan@uj.edu.pl.

Hernia : the Journal of Hernias and Abdominal Wall Surgery
|November 28, 2019
PubMed
Summary
This summary is machine-generated.

This study assessed inguinal muscle curvature variability, finding that while flat hernia meshes suffice for some patients, convex-shaped meshes are necessary for others. Anatomical variations necessitate tailored hernia repair solutions.

Keywords:
Computed tomographyComputer modelingHernia meshInguinal anatomy

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Area of Science:

  • Anatomy
  • Biomedical Engineering
  • Surgical Technology

Background:

  • Inguinal hernias are common, often treated with prosthetic meshes.
  • Current mesh designs are typically flat, potentially leading to suboptimal fit in cases of anatomical variability.
  • Assessing anatomical variations in the inguinal region is crucial for optimizing hernia repair outcomes.

Purpose of the Study:

  • To evaluate the anatomical variability of inguinal muscles.
  • To determine the necessity of using 3D convex-shaped hernia meshes versus traditional flat meshes.
  • To establish criteria for selecting appropriate hernia mesh shapes based on patient anatomy.

Main Methods:

  • 180 patients without inguinal abnormalities underwent CT scans.
  • 3D software models of inguinal muscles were created from segmented CT images.
  • Correlation analysis was performed between body mass index (BMI), mesh shape parameters (sphere diameter, mesh top height), and fitting error.

Main Results:

  • Moderate correlations were observed between mesh shape parameters and BMI, particularly in females.
  • For 62 out of 180 patients, a flat mesh was adequate with a fitting error < 5 mm.
  • For the remaining patients, one of three prefabricated convex-shaped meshes (diameters 854 mm, 434 mm, 298 mm) was sufficient.

Conclusions:

  • Approximately one-third of patients can be adequately treated with standard flat hernia meshes.
  • The remaining two-thirds require convex-shaped meshes due to anatomical variations.
  • A set of three prefabricated convex-shaped meshes can accommodate the majority of anatomical variations in the inguinal region.