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 Didn't clarify what I meant, I wasn't talking about shoulder separation types, but clavicle fracture types. To much doctor speak for me.

• Group I - Fracture of middle third (80%)
• Group II - Fracture of the distal third (15%)
  • Type I - Minimally displaced/interligamentous
  • Type II - Displaced due to fracture medial to the coracoclavicular  ligaments
    • IIA - Both the conoid and trapezoid remain attached to distal  fragment
    • IIB - Either the conoid is torn or both the conoid and trapezoid  are torn
            
  • Type III - Fractures involving articular surface
  • Type IV - Ligaments intact to the periosteum with displacement of  the proximal fragment
  • Type V - Comminuted
      
• Group III - Fracture of the proximal third (5%)
  • Type I - Minimal displacement
  • Type II - Displaced
  • Type III - Intraarticular
  • Type IV - Epiphyseal separation (observed in patients aged 25 y  and younger)
      

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