Posterior sternoclavicular dislocation is a rare disease. It occurs mainly in young men associated withhigh-energy trauma. It can be life-threatening due to compression of mediastinal structures, so its reduction isurgently needed. The radiographic diagnosis can be difficult because of overlapping structures, CT is very helpful todetermine the type and degree of displacement and the anatomic relationship with the mediastinal structures. We presentthe case of a male patient, aged 23, with an acute traumatic posterior sternoclavicular dislocation after accident,in which closed reduction was achieved by manipulation under general anesthesia, followed by analgesic immobilizationfor 3 weeks resulting in sternoclavicular healing without instability, so no more procedures were needed. A literaturereview is presented regarding to this case.

Posterior sternoclavicular dislocation is a rare disease. It occurs mainly in young men associated withhigh-energy trauma. It can be life-threatening due to compression of mediastinal structures, so its reduction isurgently needed. The radiographic diagnosis can be difficult because of overlapping structures, CT is very helpful todetermine the type and degree of displacement and the anatomic relationship with the mediastinal structures. We presentthe case of a male patient, aged 23, with an acute traumatic posterior sternoclavicular dislocation after accident,in which closed reduction was achieved by manipulation under general anesthesia, followed by analgesic immobilizationfor 3 weeks resulting in sternoclavicular healing without instability, so no more procedures were needed. A literaturereview is presented regarding to this case.