Lumbar Epidural injection
There are 3 types of Epidural injection techniques currently being used: transforaminal (TFEI), interlaminar (ILEI), and caudal epidural injections (CEI).
Transforaminal lumbar epidural steroid injection
In 1997 Carette et al stated that although epidural corticosteroid injections of methylprednisolone may afford short-term improvement in leg pain and sensory deficits in patients with sciatica due to a herniated nucleus pulposus, this treatment offers no significant functional benefit, nor does it reduce the need for surgery 1).
1)
Carette S, Leclaire R, Marcoux S, Morin F, Blaise GA, St-Pierre A, Truchon R,
Parent F, Levésque J, Bergeron V, Montminy P, Blanchette C. Epidural
corticosteroid injections for sciatica due to herniated nucleus pulposus. N Engl
J Med. 1997 Jun 5;336(23):1634-40. PubMed PMID: 9171065.