Computed Tomography of Posterior Fracture-Dislocations of the Shoulder: Case Reports

Computed tomographic (CT) evaluation of seven posterior shoulder dislocations in five patients is reported. Computed tomography provided better visualization of the trough fracture in the humeral head than did conventional x-ray films or tomography. It also demonstrated fracture fragments not seen on conventional roentgenograms. The two cases of bilateral dislocation and one case unilateral dislocation were caused by seizures. The two other cases of unilateral dislocation were caused by trauma.