[Compound acetabulum fracture caused by overstimulation with a PISCES system].

A 56-year-old patient suffered intractable radicular pain from spondylolisthesis L5/S1. There was no help from PLIT-fusion but pain decreased substantially by spinal cord stimulation with a PISCES-system. On Nov 8th 1987 the battery exhausted gradually whereas the patient increased the output up to maximum. When changing to a new battery he suffered an electric shock. Acute opistonus with a jump from his wheelchair occurred with maximal innervation of the muscles of his left leg resulting in a comminuted fracture of his left acetabulum. There seems to be a need for more information and precautions on involuntary overstimulation in the use of neurostimulators.