Three-dimensional modelling as a novel interactive tool for preoperative planning for complex perianal fistulas in Crohn's disease - Jeri-McFarlane, Sebastián (Hospital Universitari Son Espases (Palma de Mallorca, Balears)) ; García-Granero, Álvaro (Human Embryology and Anatomy Department. University of Islas Baleares) ; Ochogavía-Seguí, Aina (Hospital Universitari Son Espases (Palma de Mallorca, Balears)) ; Pellino, Gianluca (Hospital Universitari Vall d'Hebron) ; Oseira-Reigosa, Anaí (Hospital Universitari Son Espases (Palma de Mallorca, Balears)) ; Gil-Catalan, Alejandro (Hospital Universitari Son Espases (Palma de Mallorca, Balears)) ; Brogi, Leandro (Hospital Universitari Son Espases (Palma de Mallorca, Balears)) ; Ginard-Vicens, Daniel (Hospital Universitari Son Espases (Palma de Mallorca, Balears)) ; Gamundi-Cuesta, Margarita (Hospital Universitari Son Espases (Palma de Mallorca, Balears)) ; González Argenté, F. Xavier (Hospital Universitari Son Espases (Palma de Mallorca, Balears)) ; Universitat Autònoma de Barcelona