Nerve root block/ injection

free image

What is a nerve root block?

 A nerve root block is an injection of mixture of local anaesthetic and anti-inflammatory steroid given around the origin of a nerve as it leaves the spinal cord in the back or the neck. Lumbar nerve root block is done in the small of the back.

What does the treatment involve?

The procedure is done as a day case. Shortly before the injection you will be asked to change into hospital gown. The doctor performing the injection will explain it again and ask you to sign the consent form. Small plastic needle (cannula) is inserted in the back of your hand. You will be asked to lie on your front on the table.

The procedure is done under x-ray screening(fluoroscopic) to identify exact location of the needle with the help of x-ray dye. After numbing the skin, the doctor will direct the needle around the nerve.

SO if you are pregnant please let us know immediately.

You may feel pressure as the solution of local anaesthetic and steroid is injected. The needle will then be withdrawn and a dressing applied to the skin.

What happens after the treatment?

After the procedure you will be escorted in the recovery area where your blood pressure may be checked. You will lie flat and then sit up slowly. Sometimes your legs may feel warm, tingly, weak for short while.  You will be able to go home after about an hour with an escort.

What are the risks and side effects?

This is generally a safe procedure.You may get temporary worsening of pain. This may require taking your usual pain killers for next few days. The procedure may fail to provide you with the expected pain relief. Other side effects are rare and may include nerve damage, bleeding, headache and infection.