The comprehensive AOCMF classification system: radiological issues and systematic approach

Carlos H Buitrago-Téllez, Carl Peter Cornelius, Joachim Prein, Christoph Kunz, Antonio di Ieva, Laurent Audigé

Research output: Contribution to journalArticlepeer-review


The AOCMF Classification Group developed a hierarchical three-level craniomaxillofacial (CMF) classification system with increasing level of complexity and details. The basic level 1 system differentiates fracture location in the mandible (code 91), midface (code 92), skull base (code 93), and cranial vault (code 94); the levels 2 and 3 focus on defining fracture location and morphology within more detailed regions and subregions. Correct imaging acquisition, systematic analysis, and interpretation according to the anatomic and surgical relevant structures in the CMF regions are essential for an accurate, reproducible, and comprehensive diagnosis of CMF fractures using that system. Basic principles for radiographic diagnosis are based on conventional plain films, multidetector computed tomography, and magnetic resonance imaging. In this tutorial, the radiological issues according to each level of the classification are described.

Original languageEnglish
Pages (from-to)S123-S130
Number of pages8
JournalCraniomaxillofacial Trauma and Reconstruction
Issue numberSuppl 1
Publication statusPublished - Dec 2014
Externally publishedYes


  • classification condylar process
  • condylar base
  • condylar neck
  • condylar head


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