Clavicle duplication following physeal injury

  • Sedat Giray Kandemirli
  • Feyza Kabar
  • Guzin Cakir Kandemirli
  • Nadide Basak Gulleroglu
  • Zeynep Yazici
Anatomic Variations


Clavicle duplication is a rare entity with limited number of cases reported. Congenital origin and trauma related mechanisms are the main hypotheses to explain this anatomical variation. In skeletally immature patient, trauma may cause physeal-metaphyseal injury in the distal clavicle rather than acromioclavicular strain. The distal epiphysis remains in continuity with acromion and has an intact periosteal sleeve. The periosteal sleeve is extremely osteogenic, and may lead to new bone formation between epiphysis and displaced metaphysis. This remodeling potential and the intact acromioclavicular joint allow the children to be followed by closed reduction. However, there can be new bone formation between epiphysis and displaced metaphysis, resulting in clavicle duplication. Herein, we present the radiographic and computed tomography findings of a post-traumatic duplication of the clavicle in a 5-year-old boy.


Clavicle duplication Bifurcation Computed tomography Clavicle Fracture 



We would like to thank Mithat Kandemirli for his assistance in schematic drawings.

Author contributions

SGK: data acquisition, manuscript draft, manuscript review. FK: data acquisition, manuscript review. GCK: manuscript draft, manuscript review. NBG: data acquisition, manuscript review. ZY: manuscript review.


None to declare.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interest.


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Copyright information

© Springer-Verlag France SAS, part of Springer Nature 2018

Authors and Affiliations

  • Sedat Giray Kandemirli
    • 1
  • Feyza Kabar
    • 1
  • Guzin Cakir Kandemirli
    • 2
  • Nadide Basak Gulleroglu
    • 1
  • Zeynep Yazici
    • 1
  1. 1.Department of RadiologyUludag University Faculty of MedicineBursaTurkey
  2. 2.Department of Physical Medicine and RehabilitationUludag University Faculty of MedicineBursaTurkey

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