​

The epidural space is the area between the bone and the dura (the thin layer of tissue that encloses the nerves within the spinal canal)

​

An epidural injection usually consists of a steroid solution mixed with some saline and local anaesthetic.

​

The purpose of the injection is to deliver this anti inflammatory mixture to the area that is responsible for a patients sciatica.

​

The hope is that the procedure will lead to at least a partial resolution of symptoms.

The results of epidurals are variable.

Some patients describe a complete resolution of symptoms, others, sadly, tell me that it hasn't helped.

​

Sometimes epidurals work well for a period and then the pain comes back.

If the first injection has helped, it is sometimes worth trying a second injection.

​

They are usually administered with the patient sedated by an anaesthetist, that way they are not a painful experience.

Patients go home the same day but cannot drive themselves after having had sedation.

​

Complications are rare but need to be considered.

I always warn patients that there is a small risk of infection, bleeding and csf leak.

Generally, the risks of epidural are less than the risks of surgery, which may be the only viable alternative for some patients.

​

Epidurals are used to treat nerve pain associated with slipped disc and spinal stenosis