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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 1 The Allman classification of clavicle fractures

From: Is intramedullary nailing more effective than non-operative treatment in adults with displaced middle-third clavicle fractures?

Grade 1:

Fractures of the middle-third of the clavicle

Grade 2:

Fractures of the clavicle distal to the coracoclavicular ligament (lateral)

Grade 3:

Fractures of the proximal end of the clavicle (medial)