Cornelius Carl-Peter, Kunz Christoph, Neff Andreas, Kellman Robert M, Prein Joachim, Audigé Laurent
Department of Oral and Maxillofacial Surgery, Ludwig Maximilians Universität, München, Germany.
Clinic for Oral and Craniomaxillofacial Surgery, University Hospital Basel, Basel, Switzerland.
Craniomaxillofac Trauma Reconstr. 2014 Dec;7(Suppl 1):S131-5. doi: 10.1055/s-0034-1393722.
The AO classification system for fractures in the adult craniomaxillofacial (CMF) skeleton is organized in anatomic modules in a 3 precision-level hierarchy with account for an increasing complexity and details. Level-1 is most elementary and identifies no more than the presence of fractures in 4 separate anatomical units: the mandible (code 91), midface (92), skull base (93) and cranial vault (94). Level-2 relates the detailed topographic location of the fractures within defined regions of the mandible, central and lateral midface, internal orbit, endo- and exocranial skull base, and the cranial vault. Level-3 is based on an even more refined topographic assessment and focuses on the morphology - fragmentation, displacement, and bone defects - within specified subregions. An electronic fracture case collection complements the preceding tutorial papers, which explain the features and options of the AOCMF classification system in this issue of the Journal. The electronic case collection demonstrates a range of representative osseous CMF injuries on the basis of diagnostic images, narrative descriptions of the fracture diagnosis and their classification using the icons for illustration and coding of a dedicated software AOCOIAC (AO Comprehensive Injury Automatic Classifier). Ninety four case examples are listed in two tables for a fast overview of the electronic content. Each case can serve as a guide to getting started with the new AOCMF classification system using AOCOIAC software and to employ it in the own clinical practice.
成人颅颌面（CMF）骨骼骨折的AO分类系统按照解剖模块分为3个精确等级，考虑到复杂性和细节不断增加。1级最为基础，仅识别4个独立解剖部位的骨折情况：下颌骨（编码91）、中面部（92）、颅底（93）和颅顶（94）。2级涉及下颌骨、中面部中央和外侧、眶内、颅底内外及颅顶特定区域内骨折的详细地形位置。3级基于更精细的地形评估，重点关注特定子区域内的形态——骨折碎片、移位和骨缺损。一个电子骨折病例集补充了之前的教程论文，这些论文在本期杂志中解释了AO CMF分类系统的特点和选项。该电子病例集基于诊断图像展示了一系列具有代表性的CMF骨损伤，通过骨折诊断的叙述性描述以及使用专用软件AOCOIAC（AO综合损伤自动分类器）的图标进行说明和编码来呈现其分类。两个表格中列出了94个病例示例，以便快速浏览电子内容。每个病例都可作为使用AOCOIAC软件开始使用新的AO CMF分类系统并将其应用于自身临床实践的指南。
