We describe 3 patients whose shoulders dislocated as the movements of the a
rm were restricted during a generalized tonic clonic seizure over an 18-mon
th period. The first patient had both shoulders dislocated when observers s
at on his arms during the convulsion. The second patient had a convulsion w
hile in a forced lateral decubitus position and dislocated the shoulder on
that side. The third patient dislocated the shoulder and fractured the acro
mion as she was held by her arms in a chair during a convulsion. Despite th
e large number of patients with refractory epilepsy under our care, no case
s of spontaneous shoulder dislocation occurred during that period of time.