Clavicle duplication following physeal injury
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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.
KeywordsClavicle duplication Bifurcation Computed tomography Clavicle Fracture
We would like to thank Mithat Kandemirli for his assistance in schematic drawings.
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.
- 1.Bergman RA, Tubbs RS, Shoja MM, Loukas M (2016) Bergman’s comprehensive encyclopedia of human anatomic variation. Wiley, HobokenGoogle Scholar
- 6.Khanagwal VP, Sharma L, Sirohiwal B, Paliwal P, Yadav R, Yadav D, Chhabra S (2009) A rare anomaly of the Clavicle–Bifurcation of the lateral one-third. J Punjab Acad Forensic Med Toxicol 9:42–44Google Scholar
- 9.Ogden JA (1984) Distal clavicular physeal injury. Clin Orthop Relat Res 188:68–73Google Scholar