Numerical simulation of breast reduction with a new knitting condition.
Breast reduction is one of the most common procedures in breast surgery. The aim of this work is to develop a computational model allowing one to forecast the final breast geometry according to the incision marking parameters. This model can be used in surgery simulators that provide preoperative planning and training, allowing the study of the origin of the errors in breast reduction. From the mathematical point of view, this is a problem of calculus of variations with unusual boundary conditions, known as knitting conditions. The breast tissue is considered as a hyperelastic material, discretized with three-dimensional finite elements for the body, whereas the skin is modelled with two-dimensional finite elements on the curved surface. Although the model is of low precision, we show that it is sufficient for a satisfactory prediction of breast reduction surgery results, allowing an analysis of errors frequently performed during the surgery and giving an understanding of how to avoid or correct them. Copyright © 2016 John Wiley & Sons, Ltd.
Department of Informatics, University of Minho, Campus of Gualtar, Braga, 4710-057, Portugal.
Diogo
D
Lopes
Centre of Mathematics, University of Minho, Campus of Gualtar, Braga, 4710-057, Portugal.
Stéphane
0000-0003-2295-5118
S
Clain
Centre of Mathematics, University of Minho, Campus of Gualtar, Braga, 4710-057, Portugal.|Centre of Physics, University of Minho, Campus of Gualtar, Braga, 4710-057, Portugal.
Rui M S
RM
Pereira
Centre of Mathematics, University of Minho, Campus of Gualtar, Braga, 4710-057, Portugal.
Gaspar J
GJ
Machado
Centre of Physics, University of Minho, Campus of Gualtar, Braga, 4710-057, Portugal.
Georgi
G
Smirnov
Centre of Physics, University of Minho, Campus of Gualtar, Braga, 4710-057, Portugal.
Igor
I
Vasilevskiy
D001940:Breast / Q000033:anatomy & histology* / Q000601:surgery*; D003198:Computer Simulation; D005260:Female; D020342:Finite Element Analysis; D006801:Humans; D016462:Mammaplasty; D019300:Medical Errors / Q000517:prevention & control; D012867:Skin / Q000033:anatomy & histology
breast surgery; knitting conditions; numerical simulation