Brachial plexus injuries in scapulothoracic dissociation.

The rare condition of scapulothoracic dissociation (STD) is characterized by a lateral displacement of the scapula from the thoracic cage following severe trauma to the scapular girdle. This study presents an analysis of five STDs. There were three supraclavicular brachial plexus palsies and two retro- and infraclavicular palsies. Recovery of elbow flexion was obtained in only two cases. Nerve damage dominates the prognosis and nerve recovery only rarely occurs. Nerve surgery should attempt to reestablish elbow flexion.