Complete posterior sternoclavicular epiphyseal separation. A case report and review of the literature.

A review of the literature shows that fractures of the medial clavicular physis rarely occur. Fractures of the medial clavicular physis was diagnosed in a 14-year-old boy. Bony closure of this physis may not be complete until as late as 25 years of age. Complete fracture-separations of this physis, with posterior displacement into the mediastinum, should be included in the differential diagnosis of children and any young adult patients with an apparent posterior sternoclavicular dislocation.