Manuel López-Cano1, José A Pereira, Manuel Armengol-Carrasco. 1. Abdominal Wall Surgery Unit, Department of General Surgery, Hospital Universitari Vall d'Hebrón, Universitat Autònoma de Barcelona, Barcelona, Spain Department of General and Digestive Surgery, Parc de Salut Mar, Department of Health and Experimental Sciences, Universitat Pompeu Fabra, Barcelona, Spain Abdominal Wall Surgery Unit, Department of General Surgery, Hospital Universitari Vall d'Hebrón, Universitat Autònoma de Barcelona, Barcelona, Spain.