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Música de Paul Collier

Clinical aspect

In herniated lumbar spine intervertebral disc herniation is a Cando often found weakness in the fibrous ring that surrounds the disk, whereas in the lumbar nerve roots are only at the level of the cervical spine cervical spinal cord there and this can also be compressed by the herniated disk.

The signs and symptoms caused by a herniated disk herniation depend if compress a nerve root, whether directly compresses the spinal cord compression, or both at the time.

The most common discomfort is neck pain which is aggravated when extended and limits the movement of the same, the pain can extend to the arm and can cause numbness or tingling as well as failure in the muscular movements this depends on the location of the hernia and its action on the adjacent nerve. Patients often keep the arm elevated and behind the head, probably because this position relieves tension at the root of the nerve by lessening pain. In many cases the onset of pain occurs early in the morning upon awakening, without any trauma or event causing it.

Manifestación Nivel de Herniamiento Discal
C4-L5 C5-C6 C6-7 C7-T1
Raíz Comprimida C5 C6 C7 C8
Debilidad deltoides bíceps tríceps, extensión de la muñeca inherente a la mano, flexión de la muñeca
Pérdida de sensibilidad hombro lateral lateral brazo y antebrazo, pulgar y lateral del dedo indice dedo medio dedos anular y meñique
Implicación de los reflejos deltoides, pectorales bíceps tríceps flexión de los dedos

Table. The most common clinical manifestations of cervical disk herniation. (Spanish).

The Table shows the usual syndromes (radiculopathy) from cervical root. Note that the disc C6-7 is the most commonly herniated, about 2 / 3 of cervical herniation. The C5-L6 disc is involved in about 20% of cases, the C7-T1 about 10% and the C4-C5 about 2%.

If the disc herniation compresses the spinal cord, certain defects may occur (myelopathy). The weakness in hands and arms can be generalized or bilateral rather than confined to a distribution of root. Moreover, it is weakness in the legs, usually manifested initially by a feeling of heaviness in the legs and difficulty walking considerable distances or up stairs. Neurological examination may show hyperactive reflexes, pathological reflexes and "spasmodic gait (spastic gait). Finally, the sphincter and sexual function may be compromised, usually in the progression of myelopathy.

Lhermitte's sign refers to a sudden electrical sensation down the neck and back, caused by neck flexion. It was originally described by a patient with multiple sclerosis and dorsal column dysfunction. The conditions that can produce symptoms of Lhermitte are:

  1. Multiple sclerosis.
  2. Cervical spondylosis.
  3. Cervical disc herniation.
  4. Cervical spinal cord tumor.
  5. Chiari I malformation
  6. Radiation myelopathy.
  7. Subacute combined degeneration (caused by vitamin B12 deficiency).

Other symptoms can help determine the diagnosis. They suggest a herniated disc much when present, yet are often absent in the presence of the disease (ie, are specific but not sensitive). Spurling's sign refers to the reproduction or exacerbation of pain by pressing the head down and bending toward the affected side. Pain reduction by applying axial traction to the head also suggests a hernia. Finally on the shoulder abduction test, whether to lift the affected arm above the head reduces the pain.

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