Mechanism of transverse fracture of the skull base caused by blunt force to the mandible
| Autor: | Dian-Shen Wang, Qi-Feng Miao, Dong-Ri Li, Teng-Fei Yang, Xing-An Yang, Yan-Lin Zhang, Yan-Geng Yu, Fu Zhang |
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| Rok vydání: | 2021 |
| Předmět: |
Orthodontics
Skull Base Skull Fractures Finite Element Analysis Base (geometry) Mandible Middle cranial fossa Pathology and Forensic Medicine Issues ethics and legal aspects Transverse plane Skull Fractures Bone medicine.anatomical_structure Blunt Mandibular fossa otorhinolaryngologic diseases medicine Humans Joint (geology) Geology |
| Zdroj: | Legal medicine (Tokyo, Japan). 54 |
| ISSN: | 1873-4162 |
| Popis: | Transverse fracture of the skull base is common both in the crushing of temporal regions of the skull and in the case of force acting on one temporal region. However, the mechanism of transverse skull base fracture caused by maxillofacial force has not been fully clarified. To provide an injury identification basis for forensic pathologists and clinicians, this paper combines accident reconstruction and finite element analysis methods to study the injury mechanism of an incomplete transverse fracture of skull base after the injured individual’s mandible was subjected to violence in a traffic accident. The results show that after the injured individual’s mandible was subjected to violence, forces in the direction of the left mandibular fossa and the right mandibular fossa were generated, creating the component forces. The combination of the two forces can produce a crushing effect toward the center of the skull base, as if the left and right temporal regions are being crushed, and the stress is concentrated at the joint of the mandible, the middle cranial fossa and the hypophyseal fossa. When the stress exceeds a certain limit, it will cause a transverse fracture of the skull base. |
| Databáze: | OpenAIRE |
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