Grade B	Extensive preperitoneal dissection is critical to prevent uprolling of mesh.
	Desufflation of retropneumoperitoneum should be done under vision.
Grade D	When fibrin sealant is used, it is applied to the Cooper’s ligament, the inferior edge, and medial corner of the mesh, which is steadied in position in graspers for a few minutes to ensure firm adhesion before desufflation.