SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Pain relief implant. Patient holding an adjustment unit for an electrical implant that reduces the pain caused by a slipped disc. A slipped disc causes shooting pains down the legs (sciatica) along with numbness and muscle weakness. This man has severe sciatica, making him unable to sit or lie down. To resolve this, surgeons implanted a device into his abdomen (scar at upper left) to block the pain signals caused by the damaged nerves in his spine.
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