Revisiting the role of herniography in the preoperative work-up of groin hernias?

Introduction: The diagnosis of groin hernia is based on clinical symptoms and physical examination. In the case of equivocal clinical findings, patients are often referred for subsequent diagnostic imaging. Accurate detection is important to minimize the inherent risk of complications or to avoid unnecessary surgery. Although herniography has been reported as a save and highly accurate procedure, it has not gained widespread acceptance in the diagnostic work-up of groin hernias.

Methods: We retrospectively analysed 157 patients who underwent herniography in our department, which is to date the third largest study reporting on this technique. The diagnostic value of herniography was investigated--with laparascopic surgical findings serving as a gold standard--in comparison to clinical symptoms, physical examination and ultrasound.

Results: Herniography showed a substantial agreement with the surgical findings, but only a slight to fair agreement was found between surgery and clinical symptoms and examination. Poor agreement was found between sonographic and surgical findings.

Conclusion: Based on the presented data and previously reported studies, we can conclude that herniography is a safe technique with a high accuracy to detect groin hernias in patients with equivocal clinical presentation, whereas ultrasound has a wide range in reported sensitivity. Clinicians and surgeons should take this into account when referring patients for subsequent imaging.