Robinson classification of clavicle fractures

Case contributed by Leonardo Lustosa
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Illustration of the Robinson classification of clavicle fractures.

Case Discussion

The Robinson classification of clavicle fractures is divided into 12 types:

  • type 1A1: medial 1/5 undisplaced extra-articular fracture
  • type 1A2: medial 1/5 undisplaced intra-articular fracture
  • type 1B1: medial 1/5 displaced extra-articular fracture
  • type 1B2: medial 1/5 displaced intra-articular fracture
  • type 2A1: intermediate 3/5 undisplaced fracture
  • type 2A2: intermediate 3/5 angulated fracture
  • type 2B1: intermediate 3/5 displaced simple or butterfly fracture
  • type 2B2: intermediate 3/5 displaced segmental or comminuted fracture
  • type 3A1: lateral 1/5 undisplaced extra-articular fracture
  • type 3A2: lateral 1/5 undisplaced intra-articular fracture
  • type 3B1: lateral 1/5 displaced extra-articular fracture
  • type 3B2: lateral 1/5 displaced intra-articular fracture

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