Delayed cervical spinal cord injury after high voltage electrical injury: a case report.

High voltage electrical injuries usually cause devastating consequences for patients, most of which result in permanent disability. Spinal cord injury (SCI) caused by high voltage electrical injury is uncommon in the literature. We present a 29-year-old male patient who was diagnosed as having delayed SCI after high voltage electrical injury. The patient developed muscle weakness in the lower extremities with the loss of pinprick sensation below the fifth cervical spinal segment, 2 days after the high voltage electrical injury. Magnetic resonance imaging of the brain, cervical and thoracic spine was normal. Nerve conduction and needle electromyography studies were normal, except for bilateral tibial and left median somatosensory-evoked potentials. The findings on initial examination and neurophysical investigation showed incomplete cervical SCI at the C5 level. He was able to walk with a pair of canes and bilateral ankle-foot orthosis at the end of the 2-month rehabilitation. Follow-up physical and electrophysiological examination of the patient 15 months after injury showed further improvement. The patient was able to walk with a pair of canes without orthoses. Electrophysiological studies are useful instruments in the diagnosis and follow-up of these patients. Early rehabilitation is essential to obtain a favorable outcome in patients with SCI caused by high voltage electrical injury.