title: A new soft-tissue simulation strategy for cranio-maxillofacial surgery using facial muscle template model.
abstract: We propose a computationally efficient, bio-mechanically relevant soft-tissue simulation method for cranio-maxillofacial (CMF) surgery. Special emphasis is given to comply with the current clinical workflow. A template-based facial muscle prediction was introduced to avoid laborious segmentation from medical images. In addition, transversely isotropic mass-tensor model (MTM) was applied to realize the directional behavior of facial muscles in short computation time. Finally, sliding contact was incorporated to mimic realistic boundary condition in error-sensitive regions. Mechanical simulation result was compared with commercial finite element software. And retrospective validation study with post-operative scan of four CMF cases was performed.
authors.affiliation: Institute for Surgical Technology and Biomechanics, University of Bern, Stauffacherstrasse 78, 3014 Bern, Switzerland. hyungmin.kim@istb.unibe.ch
authors.forename: Hyungmin
authors.initials: H
authors.lastname: Kim
authors.forename: Philipp
authors.initials: P
authors.lastname: Jürgens
authors.forename: Stefan
authors.initials: S
authors.lastname: Weber
authors.forename: Lutz-Peter
authors.initials: LP
authors.lastname: Nolte
authors.forename: Mauricio
authors.initials: M
authors.lastname: Reyes
mesh_terms: D003198:Computer Simulation; D019465:Craniofacial Abnormalities / Q000601:surgery*; D056324:Diffusion Tensor Imaging; D055119:Elastic Modulus; D005152:Facial Muscles / Q000033:anatomy & histology / Q000502:physiology* / Q000601:surgery; D006801:Humans; D008437:Maxilla / Q000033:anatomy & histology / Q000502:physiology / Q000601:surgery; D008954:Models, Biological; D013515:Surgery, Oral