The use of tissue expanders in staged abdominal wall reconstruction

Reconstruction of large abdominal wall defects not amenable to primary closure remains a challenging problem. Various reconstructive techniques have been described in the surgical literature each with its advantages and disadvantages. In this report the authors describe their experience in treating 11 patients with large abdominal wall defects utilizing prosthetic mesh in conjunction with tissue expanders. Between 1986 and 1997 there were 6 pediatric and 5 adult patients treated with this method. The etiology included three congenital omphaloceles, five cases of necrotizing fasciitis, and three gunshot wounds. All patients initially required insertion of prosthetic mesh to bridge their large abdominal wall defects. This was followed by staged abdominal wall reconstruction with tissue expanders and prosthetic mesh. None of the patients had mesh infection or extrusion, and none developed enteric fistula or recurrent hernia. The tissue expansion process was well tolerated by all patients. One patient had partial exposure of the tissue expander due to thinning of the expanded skin. Our results suggest that the use of tissue expanders provides reliable, well-vascularized soft-tissue coverage and minimizes potential mesh-related complications in abdominal wall reconstruction.