[Spigelian hernias]

Abstract

Spigelian hernias represent 1-2% of all abdominal wall hernias. The pathogenesis often involves a dehiscence of the transverse and internal oblique muscle aponeurosis. The diagnosis is made by physical examination; but sometimes it is complicated by obesity. The risk of strangulation is important and can reach 30%. The abdominal CT scan is helpful in the description of hernia's topography and sometimes in diagnostic confirmation. The treatment is surgical. The rate of recurrence after direct closure is considerable. Synthetic mesh repair seems to be a more adequate alternative. The advent of laparoscopy has improved the management of these hernias.