Finite Element Analysis of Patient-Specific Condyle Fracture Plates: A Preliminary Study

Craniomaxillofacial Trauma and Reconstruction

William C. H. Parr⁴  Uphar Chamoli²  Peter Aquilina³  Stephen Wroe¹ 

[1] Computational Biomechanics Research Group, Zoology Division, School of Environmental and Rural Science, University of New England, Armidale, Australia;School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, New South Wales, Australia;Computational Biomechanics Research Group, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, Australia;Surgical and Orthopaedic Research Laboratory, Prince of Wales Hospital, Sydney, New South Wales, Australia

关键词: patient-specific implant;    finite element analysis;    condylar fractures;    ORIF;   

DOI  :  10.1055/s-0034-1395385

学科分类：口腔科学

来源: Thieme Medical Publishers, Inc.

【 摘 要 】

Various patterns of internal fixation of mandibular condyle fractures have been proposed in the literature. This study investigates the stability of two patient-specific implants (PSIs) for the open reduction and internal fixation of a subcondylar fracture of the mandible. A subcondylar fracture of a mandible was simulated by a series of finite element models. These models contained approximately 1.2 million elements, were heterogeneous in bone material properties, and also modeled the muscles of mastication. Models were run assuming linear elasticity and isotropic material properties for bone. The stability and von Mises stresses of the simulated condylar fracture reduced with each of the PSIs were compared. The most stable of the plate configurations examined was PSI 1, which had comparable mechanical performance to a single 2.0 mm straight four-hole plate.

【 授权许可】

Unknown