What are the risk factors for nonunion of clavicle fractures?

Updated: Jan 14, 2019
  • Author: Benjamin P Kleinhenz, MD; Chief Editor: Craig C Young, MD  more...
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Nonunion is a failure to show clinical or radiographic progression of healing after 4-6 months. The following are risk factors for nonunion:

  • Fracture comminution

  • Significant fracture displacement or shortening

  • Type 2 fractures of the distal third of the clavicle

  • Refracture

  • Female sex

  • Advanced age

  • Fractures with more than 2 cm of shortening

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