Fig. 3From: Repair of a Grynfeltt-Lesshaft hernia with the PROCEED™ VENTRAL PATCH: a case reportSchematic display of the superior lumbar triangle. The triangle is inverted and partially covered by the latissimus dorsi. The base is formed by the lower border of the 12th rib the triangle is anteriorly bounded by the internal oblique muscle and posteriorly by the quadratus lumborum and erector spinae musclesBack to article page