Radiculopathy is common term used to describe symptoms like pain,  numbness, weakness and reflex loss in the limbs that are caused by a compression and irritation of spinal nerve root. It usually felt in the area of skin supplied the by sensory fibers of the nerve root, and numbness or weakness in the muscles that are also supplied by the same nerve root.

Radiculopathy is often caused by direct pressure on the nerve root from a herniated disc or degenerative disorders.

Treatments of radiculopathy will normally include:

Surgery, most often a microdiscectomy or lumbar laminectomy, is rarely recommended to patients who have objective evidence of a herniated disc, or if the pain is severe and not resolved after a reasonable course of non-surgical treatment.

Also read:
Acute Back Pain: Immidiate Action
Back Exercise