Clinical Report: Surgical Management of Spigelian Hernia: Contemporary Techniques Overview

Overview

Spigelian hernia (SpH) is a rare ventral hernia with a high risk of incarceration due to its small defect size and unique anatomy. Surgical management requires understanding the SpH anatomy, with minimally invasive techniques increasingly favored. Diagnosis is challenging due to ambiguous symptoms and often absent palpable mass.

Background

Spigelian hernia occurs at the Spigelian fascia lateral to the rectus abdominis muscle and is named after Adriann van den Spieghel. It typically develops within a 6 cm wide Spigelian belt above the interspinous line, an area prone to hernia formation due to high intraabdominal pressure. SpH is rare, representing 1–2% of ventral hernias, predominantly affecting adults with a median age of 65 and a female-to-male ratio of 2:1. The hernia sac usually develops between the internal and external oblique muscles, often without penetrating the external oblique aponeurosis, complicating clinical diagnosis.

Data Highlights

Key Findings

• SpH occurs at the Spigelian fascia lateral to rectus abdominis, often within the Spigelian belt above the interspinous line.
• The hernia sac usually develops interstitially between internal and external oblique muscles without penetrating the external oblique aponeurosis in 90% of cases.
• SpH has a high risk of incarceration (up to 24%) due to a small, rigid hernia orifice compared to hernia content.
• Diagnosis is difficult; many patients have symptoms without palpable mass, especially in early stages.
• SpH predominantly affects older adults (median age 65) and females (2:1 ratio), with a slight left-side predominance.
• Minimally invasive surgical techniques are increasingly preferred due to anatomical considerations and risk profile.

Clinical Implications

Clinicians should maintain a high index of suspicion for Spigelian hernia in patients presenting with intermittent lower abdominal pain and swelling, even without palpable mass. Given the high incarceration risk, timely surgical intervention is recommended. Understanding the unique anatomy of SpH supports the selection of appropriate minimally invasive surgical approaches to optimize outcomes.

Conclusion

Spigelian hernia is a rare but clinically significant ventral hernia with challenging diagnosis and a high risk of incarceration. Contemporary surgical management emphasizes anatomical knowledge and minimally invasive techniques to reduce morbidity and improve patient outcomes.

References

1. Van den Spieghel (1578–1625) -- Anatomical descriptions of linea semilunaris
2. Klinkosh -- First description of Spigelian Hernia
3. European Hernia Society (EHS) and Americas Hernia Societies (AHS) Guidelines
4. Larson et al. -- Clinical presentation of Spigelian Hernia
5. Webber et al. -- Stages of Spigelian Hernia development