title: Two-criteria optimisation problem for ventral hernia repair.
abstract: Two-criteria optimisation problem related to laparoscopic ventral hernia repair is formulated in this paper. An optimal implant from a given set and its orientation is sought. The implant is subjected to kinematic extortions due to a patient's body movement and intra-abdominal pressure. The first criterion of the optimisation problem deals with the reaction force in the implant fastener, while the deflection of the implant constitutes the second criterion. A two-stage optimization procedure is proposed and the optimal solution is determined with the aid of minimization of an additional objective function. Numerical examples for typical locations of hernia are provided.
authors.affiliation: a Department of Theory and Ship Design, Faculty of Ocean Engineering and Ship Technology , Gdańsk University of Technology , Gdańsk , Poland.
authors.forename: Czesław
authors.initials: C
authors.lastname: Szymczak
authors.affiliation: b Department of Structural Mechanics, Faculty of Civil and Environmental Engineering , Gdańsk University of Technology , Gdańsk , Poland.
authors.forename: Izabela
authors.initials: I
authors.lastname: Lubowiecka
authors.affiliation: b Department of Structural Mechanics, Faculty of Civil and Environmental Engineering , Gdańsk University of Technology , Gdańsk , Poland.
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Szepietowska
authors.affiliation: b Department of Structural Mechanics, Faculty of Civil and Environmental Engineering , Gdańsk University of Technology , Gdańsk , Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Tomaszewska
mesh_terms: D000005:Abdomen / Q000601:surgery; D001696:Biomechanical Phenomena; D005260:Female; D020342:Finite Element Analysis; D006555:Hernia, Ventral / Q000601:surgery*; D059685:Herniorrhaphy; D006801:Humans; D008297:Male; D011312:Pressure; D019736:Prostheses and Implants; D013526:Surgical Mesh; D017792:Surgical Stapling; D016896:Treatment Outcome
keywords: Optimisation; finite element modelling; laparoscopic ventral hernia repair; surgical mesh