Interposition of the hernia sac as a protective layer in repair of giant incisional hernia with polypropylene mesh.

BACKGROUND AND PURPOSE

Repair of giant incisional hernia is still associated with high postoperative morbidity and recurrence rates. We evaluated the effectiveness of placing the hernia sac between the viscera and the polypropylene mesh in the repair.

METHODS

The subjects of this study were patients with an incisional hernia at least 15 cm in diameter, diagnosed between June 2004 and October 2010 and treated with on-lay polypropylene mesh at least 25 cm in length. We operated using a simplified method of placing the hernia sac between the viscera and the mesh, and fixing the mesh with interrupted trans-fascial U sutures. We evaluated the patient demographics and postoperative complications retrospectively.

RESULTS

A total of 25 patients (mean age 57.1 ± 10 years) were included. The mean length of hospital stay was 1.8 ± 1.2 days. Seroma developed in four patients (16 %), but only two with cystic seroma required excision of the cyst wall with preservation of the mesh. Twenty-two patients (88 %) were followed up for a mean period of 42.6 ± 23 months. There was no incidence of chronic pain, hospitalization for intestinal obstruction, or enterocutaneous fistulization. There was only one recurrence (4.55 %).

CONCLUSION

The hernia sac can be interposed in all patients undergoing giant incisional hernia repair if direct contact between the polypropylene mesh and intestine is unavoidable.