A 33-year-old man, right-handed, without epilepsy, was admitted to our department with a bilateral anterior shoulder dislocation sustained during a hypoglycemia-induced convulsion resulting from diabetes. The patient's shoulders appeared symmetric and "squared off" laterally. He had no neurological deficits or vascular injuries. Radiographs revealed bilateral anterior subglenoid dislocations, bilateral fractures of the greater tuberosity and bilateral non-displaced fractures of the tip of the coracoid process (Figures 1 and 2). Both dislocations were reduced under intravenous sedation. After reduction, radiographs and CT scan showed a good position of the fragments of the left shoulder (Figure 3), but a persistent anterior dislocation of the right humeral head associated with posterior displacement of the greater tuberosity ( Figure 4). The left shoulder was treated with a sling for 3 weeks, followed by rehabilitation. We performed an open reduction on the right shoulder using a delto-pectoral approach without section of the subscapularis muscle. The greater tuberosity was anatomically reduced and fixed by 2 cancellous screws, but the shoulder remained unstable because of a fracture of the anterior glenoid cavity. We performed an anterior osteoplastic ridge using the avulsed coracoid process fragment with its tendinous and muscular insertions. Postoperatively, the right shoulder was placed in a sling during 3 weeks. 7 months after surgery, the patient was able to work as a packer. On reexamination 2 years later, he had normal painfree active moveFigure 1. Frontal view of the right and left shoulders demonstrating bilateral anterior subglenoid dislocations associated with bilateral greater tuberosity fractures.