The epidural anesthesia is not as deep as is what we call the spinal injection. The goal of the epidural is to provide anesthesia and pain relief right before and after surgery. The motor function of that part of your body may be preserved depending on how much local anesthesia we inject. Epidural anesthesia blocks the nerve impulses from the spinal nerves around your body, into your spinal cord. What we get out of this injection is a decreased sensation from that part of your body and a much better pain control during and after surgery.