再探勒福系统：创伤速度可预测勒福Ⅰ型骨折经外侧支柱的骨折路径。
The Le Fort system revisited: Trauma velocity predicts the path of Le Fort I fractures through the lateral buttress.
作者信息
Roumeliotis Grayson, Ahluwalia Romy, Jenkyn Thomas, Yazdani Arjang
机构信息
The Department of Surgery, Division of Plastic Surgery, University of Ottawa, Ottawa;
Department of Surgery, Division of Plastic Surgery;
出版信息
Plast Surg (Oakv). 2015 Spring;23(1):40-2. doi: 10.4172/plastic-surgery.1000899.
OBJECTIVE
To examine the effect of trauma velocity on the pattern of Le Fort I facial fractures.
METHOD
A retrospective medical record review was conducted on a consecutive cohort of craniofacial traumas surgically treated by a single surgeon between 2007 and 2011 (n=150). Of these cases, 39 Le Fort fractures were identified. Patient demographic information, method of trauma and velocity of impact were reviewed for these cases. Velocity of impact was expressed categorically as either 'high' or 'low': high-velocity fractures were those caused by a fall from >1 story or a motor vehicle collision; low-velocity fractures were the result of assaults with a blunt weapon, closed fist or falls from standing height. The vertical position of each fracture was measured at its point of entry on the lateral buttress and its point of exit on the piriform aperture. To allow for comparison across individuals, values were expressed as ratios based on their location on the face relative to these landmarks. A Wilcoxon rank-sum test was used to compare the fracture heights caused by high- and low-velocity trauma.
RESULTS
The results revealed that high-velocity traumas to the face create Le Fort I fractures at a higher point in the lateral buttress compared with low-velocity traumas. There was no difference between heights at the piriform aperture.
CONCLUSION
High-velocity trauma resulted in higher Le Fort I fracture patterns compared with low-velocity trauma.
目的
研究创伤速度对Le Fort I型面部骨折模式的影响。
方法
对2007年至2011年间由同一位外科医生手术治疗的一系列颅面部创伤病例进行回顾性病历审查（n = 150）。在这些病例中，识别出39例Le Fort骨折。对这些病例的患者人口统计学信息、创伤方式和撞击速度进行了审查。撞击速度分为“高”或“低”：高速骨折是由从高于一层楼的高度坠落或机动车碰撞引起的；低速骨折是由钝器、握拳攻击或从站立高度坠落导致的。在每个骨折在侧支柱的入口点和梨状孔的出口点测量其垂直位置。为了便于个体间比较，数值以相对于这些标志点在面部的位置的比率表示。使用Wilcoxon秩和检验比较高速和低速创伤引起的骨折高度。
结果
结果显示，与低速创伤相比，面部高速创伤在侧支柱的更高位置造成Le Fort I型骨折。梨状孔处的高度没有差异。
结论
与低速创伤相比，高速创伤导致更高的Le Fort I型骨折模式。
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