Abstract
The patient is a 70-year-old man who suffered from both back pain and leg pain resulting from failed back surgery syndrome. We performed implantation of the spinal cord stimulation device for him. It was effective for one year, but he did not use it because the effect attenuated afterwards. Abdominal skin slightly cranial from the stimulation device became necrotic 17 years later. We did not search for any allergy to metal, but the stimulation device moved caudally, and a physical irritation by lead was regarded as the cause of necrosis. A periodical medical examination of the skin is necessary other than the movement of the electrode in the epidural space and the painkilling effect after the implantation of the stimulation device.