radic-, radi-

(Latin: root)

A reference to, or affecting, the nerve roots and the spinal cord.
radiculomyelopathy (s) (noun) (no pl)
A disease of the spinal cord and spinal nerve roots; myeloradiculopathy: In medical school, Tom learned that radiculomyelopathy pertained to the medulla spinalis and the nerve roots.
radiculoneuropathy (s) (noun), radiculoneuropathies (pl)
An ailment of the spinal nerve roots and nerves: At the same time as Tom, Susan learned that radiculoneuropathy was concerned with the peripheral spinal nerves and their roots in a person.
radiculopathy (s) (noun), radiculopathies (pl)
A disease of spinal nerve roots: Among some patients, a type of pain is felt in the extremities (most commonly the arms or legs) along the course of the spinal nerve roots.

Inflammation or compression of the spinal nerve from conditions, such as "stenosis" or a herniated disc, can trigger radicular pain.

If a cervical condition is causing radiculopathy, for example, "cervical stenosis", it can cause arm, neck, and shoulder pain.

If a lumbar condition is the cause, that is a lumbar herniated disc, it can cause leg pain and "sciatica" or pain that results from irritation of the sciatic nerve which is the largest nerve in the body that begins in the lumbar spinal cord in the lower back (sacrum) and extends through the buttocks area, sending nerve endings down through the legs and knees.
Excision of all or part of a dental root.