Spinal Glossary: E

  • electromyography (EMG): A test that uses the electrical signals of muscles to help detect potential nerve abnormalities. It can be useful in the detection of several spinal disorders, including spinal stenosis, herniated discs, bulging discs and sciatic nerve compression. Often used in conjunction with a nerve conduction study (NCS).
  • Epidural steroid injection (ESI): A minimally invasive procedure designed to alleviate chronic neck or back pain by reducing swelling at the site of spinal nerve compression. This is accomplished by injecting an anti-inflammatory agent (corticosteroid) into the adjacent epidural space, which is the area between the protective covering of the spinal cord and the vertebrae.
  • endoscopic: An endoscopic surgery is one that uses an endoscope and camera to perform the procedure. Not all minimally invasive surgeries are performed with an endoscope.
  • endoscopic spine surgery: A minimally invasive procedure that addresses spinal abnormalities causing painful nerve compression. A series of flexible tubes and a video monitor allow the surgeon to access the affected portion of your spine without making a large incision or causing trauma to connective tissues.
  • endoscope: A surgical or diagnostic tool that is used to view interior body cavities, including the gastrointestinal tract and spine.