Müller AO Classification of fractures
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The Müller AO Classification of fractures is a system for classifying bone fractures initially published in 1987[1] by the AO Foundation as a method of categorizing injuries according to therognosis of the patient's anatomical and functional outcome. "AO" is an initialism for the German "Arbeitsgemeinschaft für Osteosynthesefragen", the predecessor of the AO Foundation.
It is one of the few complete fracture classification systems to remain in use today after validation.[2]