The nerve roots transport messages from the Brain and Spinal cord to your legs and they receive messages from the limbs about pain and temperature.
An injection of anti-inflammatory steroid and local anaesthetic around the painful nerve can help treat pain and inflammation caused by compression or irritation of the nerve. These injections are also used as a Diagnostic tool by the Consultant. For example, if your symptoms are significantly improved then it’s likely that the injected nerve root is the cause of your problems.
The procedure is carried out mostly by a Consultant Radiologist under the guidance of a CT scan ensuring greater accuracy and safety. This can be done as an Outpatient procedure.