title: Anatomically-driven soft-tissue simulation strategy for cranio-maxillofacial surgery using facial muscle template model.
abstract: We propose a computationally efficient and bio-mechanically relevant soft-tissue simulation method for cranio-maxillofacial (CMF) surgery. A template-based facial muscle reconstruction was introduced to minimize the efforts on preparing a patient-specific model. A transversely isotropic mass-tensor model (MTM) was adopted to realize the effect of directional property of facial muscles in reasonable computation time. Additionally, sliding contact around teeth and mucosa was considered for more realistic simulation. Retrospective validation study with postoperative scan of a real patient showed that there were considerable improvements in simulation accuracy by incorporating template-based facial muscle anatomy and sliding contact.
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: Lutz-Peter
authors.initials: LP
authors.lastname: Nolte
authors.forename: Mauricio
authors.initials: M
authors.lastname: Reyes
mesh_terms: D003198:Computer Simulation; D055119:Elastic Modulus / Q000502:physiology; D005152:Facial Muscles / Q000033:anatomy & histology / Q000502:physiology*; D006801:Humans; D008954:Models, Biological; D012886:Skull / Q000601:surgery*; D025321:Surgery, Computer-Assisted / Q000379:methods*; D013515:Surgery, Oral / Q000379:methods*