The nature of radicular pain
Radicular pain has its own specific manifestation, which alleviates, in many cases, the diagnosis already at the stage of pain syndrome description. The nerve, leaving the spinal cord, is sent to the final destination point, and each nerve has its own. So, in those cases when the failure occurs, the nerve clamp, the soreness is tracked along its entire length. An example for clarity. Pain, the main localization of which is in the gluteal region, shoots and pushes the foot, while tracing its course on the back of the foot, through the popliteal space. Pain is painful when moving, reflecting on the lumbar region. The pain is either periodic, shooting, or permanent, nasal - stitching. The next distinguishing feature of this kind of pain is a partial or total loss of skin sensitivity. Again, we return to the example given. If you carry out a sensitivity check by gently pricking the skin with a sharp object all over the affected nerve, you will find that the skin does not feel tingled or feels, but very weakly. A poor sensitivity, relatively speaking, in the form of a strip, passes along the back surface of the leg, showing the boundaries of the nervous branch. This manifestation suggests a root deficit.
Now it's up to the third characteristic sign of the defeat of one of the roots, which is a violation of mobility. With prolonged absence of normal, natural vital activity of the clamped nervous branch, pathological changes occur in the structures of muscles and ligamentous apparatus. Muscles with time become weak, atrophic, their mass gradually decreases, they seem to dry up. In such cases, people say so, the arm, or the leg has dried up. There is the expression "dry limb syndrome".
The examples given in the text concern limbs only for the sake of simplicity of explanation of the mechanism of development of the original cause, as a result of which the radicular pain develops. But this does not mean at all that such a pathology affects only those nerves whose zones of innervation are limbs. Any roots can be affected, in any part of the spinal cord, with only one spine prone to a one-stage lesion. It is very rare cases of damage to more than one spine at once. In such cases, the pain does not appear on one leg, if you return to the above example, and immediately on two legs.