Comparison of a Cortivazol (ALTIM®) Infiltration of Posterior Epidural Space at L3-L4 Stage Versus an Epidural Infiltration of Cortivazol (ALTIM®) on Contact With Disco Radicular Conflict in Discal Sciatica (EPI-AMELIE)

Comparison of a Cortivazol (ALTIM®) Infiltration of Posterior Epidural Space at L3-L4 Stage Versus an Epidural Infiltration of Cortivazol (ALTIM®) on Contact With Disco Radicular Conflict in Discal Sciatica

Comparison of a Cortivazol (ALTIM®) Infiltration of Posterior Epidural Space at L3-L4 Stage Versus an Epidural Infiltration of Cortivazol (ALTIM®) on Contact With Disco Radicular Conflict in Discal Sciatica - Controlled Randomized Trial With Double Blind Evaluation

In discal sciatica, after failure of medical treatment, the investigators propose frequently a spinal infiltration of corticoids the most closer of disco-radicular conflict. Recently, some cases of paraplegia during lumbar foraminal infiltrations have induce a reduction of indications of this type of infiltration. An alternative would be to propose a lateral epidural infiltration on contact with conflict.The objective of this study is to compare, in 112 patients with a less than 6 months discal sciatica, the efficacy on pain of a non target posterior epidural space infiltration of corticoids done at L3-L4 stage on scan control versus an epidural infiltration of the same corticoid done in lateral on contact of disco radicular conflict on scan control.

Epidural infiltration of Corticoids, L3-L4 stage, On contact of disco radicular conflict, Scan control

In this control arm, there are patients with a non target posterior epidural space infiltration of corticoids done at L3-L4 stage on scan control. These patients must have a discal hernia confirmed by scanner or RMI

In this experimental arm, there are patients with an epidural infiltration of corticoids done in lateral on contact of disco radicular conflict on scan control. These patients must have a discal hernia confirmed by scanner or RMI

For patients included in control arm, a non target posterior epidural space infiltration of corticoids will be done at L3-L4 stage on scan control

For patients included in experimental arm, an epidural infiltration of corticoids will be done in lateral on contact of disco radicular conflict on scan control.

professional activity recovery is assessed by patient's interrogation: if recovery, conditions of recovery, date of recovery. If not recovery, for why?

professional activity recovery is assessed by patient's interrogation: if recovery, conditions of recovery, date of recovery. If not recovery, for why?

professional activity recovery is assessed by patient's interrogation: if recovery, conditions of recovery, date of recovery. If not recovery, for why?

professional activity recovery is assessed by patient's interrogation: if recovery, conditions of recovery, date of recovery. If not recovery, for why?

Inclusion Criteria: Informed consent Aged from 18 to 65 years Affiliated or benefit from an insurance regimen Patient with a sciatic answering to the definition Discal sciatica more than 15 days and less than 6 months Discal hernia (scan or RMI) Negative BHCG and normal coagulation parameters Exclusion Criteria: History of lumbar surgery Spinal infiltration of corticoids in 30 days before inclusion Iode allergy Anticoagulation therapy, unbalanced type 2 diabetes, instable HTA Motor loss < 4 (muscular testing) Sphincter disorder (cauda equida syndrome)