Mhd Ayham Darwich1, Mhd Hassan Albogha2, Adnan Abdelmajeed3, Khaldoun Darwich4. 1. Lecturer, Faculty of Biomedical Engineering, Al Andalus University for Medical Sciences, Qadmus, Syria; Faculty of Engineering, Tartous University, Tartous, Syria. 2. Visiting Assistant Professor, Section of Orthodontics and Dentofacial Orthopedics, Faculty of Dental Science, Kyushu University, Kyushu, Japan. Electronic address: hassanbuga@hotmail.com. 3. Lecturer, Faculty of Biomedical Engineering, Al Andalus University for Medical Sciences, Qadmus, Syria. 4. Associate Professor, Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Damascus University, Damascus, Syria; Department of Maxillofacial Surgery, International University for Science and Technology, Damascus, Syria.
Abstract
PURPOSE: The aim of this study was to compare the performances of 5 plating techniques for fixation of unilateral mandibular subcondylar fracture. MATERIALS AND METHODS: Five titanium plating techniques for fixation of condylar fracture were analyzed using the finite element method. The modeled techniques were 1) 1 straight plate, 2) 2 parallel straight plates, 3) 2 angulated straight plates, 4) 1 trapezoidal plate, and 5) 1 square plate. Three-dimensional models were generated using patient-specific geometry for the mandible obtained from a computerized tomographic image of a healthy living man. Plates were designed and combined with the mandible and analyzed under a 500-N load. RESULTS: The single straight plate presented the most inferior performance; it presented maximum displacement and strain on cortical bone. The trapezoidal plate induced the least amount of strain on cortical bone and was best at resisting displacement. CONCLUSION: The trapezoidal plate is recommended for fixation of subcondylar fracture.
PURPOSE: The aim of this study was to compare the performances of 5 plating techniques for fixation of unilateral mandibular subcondylar fracture. MATERIALS AND METHODS: Five titanium plating techniques for fixation of condylar fracture were analyzed using the finite element method. The modeled techniques were 1) 1 straight plate, 2) 2 parallel straight plates, 3) 2 angulated straight plates, 4) 1 trapezoidal plate, and 5) 1 square plate. Three-dimensional models were generated using patient-specific geometry for the mandible obtained from a computerized tomographic image of a healthy living man. Plates were designed and combined with the mandible and analyzed under a 500-N load. RESULTS: The single straight plate presented the most inferior performance; it presented maximum displacement and strain on cortical bone. The trapezoidal plate induced the least amount of strain on cortical bone and was best at resisting displacement. CONCLUSION: The trapezoidal plate is recommended for fixation of subcondylar fracture.
Authors: Lucas Cavalieri-Pereira; Guilherme Spagnol; Cássio Edvard Sverzut; Márcio de Moraes; Alexandre Elias Trivellato Journal: Oral Maxillofac Surg Date: 2018-01-17