Comparative study of onlay versus sublay mesh repair in the management of ventral hernias.

Ventral hernias with large defects (≥ 2 cm) are managed with tension free mesh repair. The growing consensus that sublay (retrorectus) mesh repair is superior to onlay mesh repair due to fewer complications is based on literature dominated by retrospective studies from high and upper-middle income countries. There is thus a need of more prospective studies from various countries to resolve the controversy.