University of Cologne, Faculty of Medicine and University Hospital, Center for Orthopedic and Trauma Surgery, Kerpener Str. 62, 50937 Cologne, Germany; Department of Anatomy I, University of Cologne, Faculty of Medicine and University Hospital, Cologne, Germany.
University of Cologne, Faculty of Medicine and University Hospital, Center for Orthopedic and Trauma Surgery, Kerpener Str. 62, 50937 Cologne, Germany.
Ann Anat. 2022 Feb;240:151878. doi: 10.1016/j.aanat.2021.151878. Epub 2021 Dec 2.
The aim of this study was to investigate whether life-like fractures of human cadaveric mandibles with a focus on the condylar process and the intact soft tissue envelope could be simulated. A total of nine fresh-frozen human head specimens were fractured in a custom-made drop-test bench. This reproducible method is based on a weight falling from a defined height onto the fixed specimens, simulating a direct blow to the symphysis of the mandible. All the fractures were analyzed by fluoroscopy and CT-scans. In all the specimens that were included in this study, several typical lesions could be created, resulting in a total of 27 mandible fractures. Seven condylar head fractures with intracapsular fracture patterns, three high, two low and five subcondylar fractures as well as different corpus fractures occurred. Human cadaveric mandibles as part of a complete head specimen with intact soft tissue can be successfully fractured by means of a drop-test bench setup. The amount of load and the exact angle at which the load is applied seem to be of high relevance. Such fractured specimens can be implemented in surgical education courses to teach and improve osteosynthetic techniques.
本研究旨在探讨是否可以模拟具有髁突和完整软组织包膜的类似活体骨折的人尸骸下颌骨。总共对 9 个新鲜冷冻的人头标本在定制的跌落测试台上进行了骨折。这种可重复的方法基于从规定高度掉落的重物撞击固定标本,模拟对下颌骨联合部的直接打击。所有骨折均通过透视和 CT 扫描进行分析。在本研究纳入的所有标本中,均可创建几种典型的损伤,从而导致总共 27 例下颌骨骨折。发生了 7 例髁突头部骨折,具有囊内骨折模式,3 例高位,2 例低位和 5 例髁突下骨折以及不同的体部骨折。完整软组织完整的人尸骸下颌骨可以通过跌落测试台设置成功骨折。施加的负荷量和确切的施加角度似乎非常重要。此类骨折标本可用于外科教育课程中,以教授和改进骨折复位技术。