[Salter 1 medial collarbone epiphysiolysis with acute posterior displacement in the immature skeleton]

Sternoclavicular epiphysiolysis is a rare lesion, the posterior variant being even less common. Its clinical presentation may be subtle, or it may compromise mediastinal structures, either initially or during evolution, which is a serious and potentially fatal picture. This case report documents sternoclavicular dissociation in a patient with an immature skeleton, given by a Salter and Harris 1-type injury, which was surgically treated by open reduction and internal fixation with transosseous configuration with non-reabsorbable suture. With a 10-month follow-up and excellent results. This technique seems to be a good option for the treatment of sternoclavicular dislocation in the schematically immature patient, regaining function and avoiding complications.