Simulation of Lipofilling Reconstructive Surgery Using Coupled Eulerian Fluid and Deformable Solid Models

Vincent Majorczyk, Stéphane Cotin, Christian Duriez, and Jeremie Allard

Abstract. We present a method to simulate the outcome of reconstructive facial surgery based on fat-filling. Facial anatomy is complex: the fat is constrained between layers of tissues which behave as walls along the face; in addition, connective tissues that are present between these different layers also influence the fat-filling procedure. To simulate the end result, we propose a method which couples a 2.5D Eulerian fluid model for the fat and a finite element model for the soft tissues. The two models are coupled using the computation of the mechanical compliance matrix. Two contributions are presented in this paper: a solver for fluids which couples properties of solid tissues and fluid pressure, and an application of this solver to fat-filling surgery procedure simulation.

Keywords: Simulation, fluid-solid interaction, reconstructive surgery

LNCS 8151, p. 299 ff.

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