Randomization
Each center performed block randomization in blocks of 10 participants. Numbered and sealed opaque envelopes were opened by the operating surgeon just before the procedure. Patients were enrolled consecutively and randomly received one of the treating options: the self-adhesive mesh (Mesh Adhesix™, 7.5 cm × 15.5 cm, Cousin Biotech, France) or self-gripping mesh (Progrip™, self-gripping polypropylene mesh, 12 cm × 8 cm, Covidien) in an otherwise equal operation.