13+ What Is The Epidural Space Background. The epidural space is the area between the dura mater (a membrane) and the vertebral wall, containing fat and small blood vessels. The dura is also is the area where, for certain procedures, drugs are injected.
The epidural space (sometimes called the extradural space) is a part of the human spine inside the spinal canal separated from the spinal cord and its surrounding cerebrospinal fluid by the dura mater.
Getting an epidural feels like being a sock puppet, and the anesthesiologist is the puppeteer. Epidural steroid injections are delivered to the epidural space in order to deliver analgesics to the immediate site of pain. It is the space within the canal lying outside the dura mater. The fat in the epidural space helps absorb shock, which protects the other contents in the area, as well as the dura.