Bereznyak Elias Yekaterina, Shilo Dekel, Emodi Omri, Noy Dani, Rachmiel Adi
Department of Oral and Maxillofacial Surgery, Rambam Medical Care Center.
Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
J Craniofac Surg. 2018 Oct;29(7):e663-e665. doi: 10.1097/SCS.0000000000004730.
The study was aimed to determine possible relations between skeletal morphologic parameters to mandibular angle fractures. Retrospective study of 100 patients suffering from mandibular fractures and treated in the Rambam Health Care Campus between the years 2013 and 2017 was conducted. Predictor variable was facial skeletal morphologic features as derived from the measurements. Outcome variable was mandibular angle fractures. About 42 patients suffered from angle fractures. Gonial angle (131.3° versus 118.1°), condylar neck width (8.3 mm versus 6.8 mm sagittaly and 7.1 mm versus 5.8 mm horizontally), and wisdom tooth prevalence and impaction were positively correlated to the fracture. Ramus height (48.3 mm versus 53.4 mm) was negatively correlated to angle fractures. Many reports in the literature show positive relations between impacted 3rd molars and angle fractures, yet only sporadic reports describe relations between facial fractures and facial features. Our results showed the predictable positive relation between angle fractures and 3rd molar prevalence and impaction. Yet surprisingly, we found unequivocal significant positive correlation between angle fractures to gonial angle and condylar neck width and negative correlation to ramus height. Based on the correlation to the gonial angle and ramal height, it is concluded that enlarged anterior vertical growth is a predictor for angle fractures, as are condylar neck width, and wisdom teeth.
该研究旨在确定骨骼形态学参数与下颌角骨折之间的可能关系。对2013年至2017年间在兰巴姆医疗保健校园接受治疗的100名下颌骨骨折患者进行了回顾性研究。预测变量是从测量中得出的面部骨骼形态学特征。结果变量是下颌角骨折。约42名患者发生角部骨折。下颌角（131.3°对118.1°）、髁突颈部宽度（矢状面8.3mm对6.8mm，水平面7.1mm对5.8mm）以及智齿的患病率和阻生情况与骨折呈正相关。下颌支高度（48.3mm对53.4mm）与角部骨折呈负相关。文献中的许多报告显示阻生第三磨牙与角部骨折之间存在正相关，但仅有零星报告描述面部骨折与面部特征之间的关系。我们的结果显示角部骨折与第三磨牙患病率和阻生之间存在可预测的正相关。然而，令人惊讶的是，我们发现角部骨折与下颌角和髁突颈部宽度之间存在明确的显著正相关，与下颌支高度呈负相关。基于与下颌角和下颌支高度的相关性，得出结论：垂直向前生长增大是角部骨折的一个预测因素，髁突颈部宽度和智齿也是如此。
