Finite Element Analysis of Different Titanium Plates for Internal Fixation of Fractures of the Mandibular Condylar Neck
| Autor: | Paris Liokatis, Georgios Tzortzinis, Simos Gerasimidis, Wenko Smolka |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Adult
medicine.medical_treatment Finite Element Analysis chemistry.chemical_element Computed tomography Condyle Fracture Fixation Internal 03 medical and health sciences Fixation (surgical) Imaging Three-Dimensional 0302 clinical medicine Mandibular Fractures medicine Humans Internal fixation Titanium Orthodontics medicine.diagnostic_test business.industry Mandibular Condyle 030206 dentistry Neck fracture Finite element method Biomechanical Phenomena Bite force quotient Otorhinolaryngology chemistry 030220 oncology & carcinogenesis Surgery Oral Surgery business Bone Plates |
| Zdroj: | Journal of Oral and Maxillofacial Surgery. 79:665.e1-665.e10 |
| ISSN: | 0278-2391 |
| DOI: | 10.1016/j.joms.2020.09.038 |
| Popis: | Purpose The purpose of the present study is to compare the performance of 4 titanium miniplates (alpha, kappa, rhomboidal, and trapezoidal) used for the fixation of condylar neck fractures by implementing computational finite element analysis. Methods Three-dimensional models of the plates were used to reduce a virtually created condylar neck fracture in a mandible obtained from a computed tomography scan of a healthy adult. The developed models were analyzed, making use of the finite element method under 2 loading scenarios: a reduced postoperative bite force of 135 N and a clenching force of 500 N were examined. The plating designs' performance was assessed based on displacements along the fracture area, bone strains, and plate stresses. Results For a loading limited to 135 N, all 4 plates offer an adequate fixation with a small risk of screw loosening for the rhomboidal and trapezoidal plates. For an applied force of 500 N, the alpha and kappa plates showed better results, distributing more homogeneously the strains in the bone and offering better rigidity. Conclusions These findings implicate that the alpha and kappa plates performed better when bigger loads are applied. On the other hand, the trapezoidal and rhomboidal plates are not recommended for condylar fractures, especially if bigger functional loads are expected. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|