Herniated disc is the prolapse of the central substance of the disc through the surrounding ring. Pain occurs when the protrusion of the disc causes trauma and inflammation of adjacent tissues (for example, posterior longitudinal ligament).
Syndromes of radicular disorders are represented by segmentary radicular symptoms (pain or paresthesia in the dermatome zone, muscular weakness in the innervation zone of the rootlet).
Cervical radiculopathy is a combination of symptoms, including neurogenic pain in the neck and upper limb, caused by the cervical nerve roots. In addition to pain, numbness, weakness, and decreased reflexes can occur.
