Skip to main content

About sciatica

Sciatica is a syndrome that manifests itself in the form of pain spreading along the sciatic nerve. Its origin is associated with the compression of the roots of the spinal cord, located at the level of the lumbar spine.

Sciatica almost never occurs until 30 years. All patients are older people.

There are a lot of reasons that can lead to compression of the nerve roots and the appearance of lumbosacral radiculitis. In this regard, the manifestations of sciatica can vary greatly from person to person.

Structure of the lumbar spine
The lumbar spine is represented by five vertebrae, which are large in comparison with the others, the massive front part - the body, - and the spinal processes behind it (the protruding posterior part of the vertebra - see the illustration).
Between the bodies of the lumbar vertebrae are intervertebral discs.

Structure of the intervertebral disc:
The pulpous (gelatinous) nucleus is in the central part and plays the role of a shock absorber during walking;

A dense fibrous ring surrounds the gelatinous core around the periphery and does not allow it to fall outside the vertebral body.

Above, the lumbar spine is connected to the inferior thoracic region, from below - with the sacrum, which is a single bone. The lumbar vertebrae are interconnected with each other, and they have the greatest load. Therefore, in this area most often occur disorders, leading to compression of the nerve roots.

Structure of the spinal cord, nerve roots, sciatic nerve
The spinal cord passes in a narrow spinal canal, which is formed by the bodies and arcs of the vertebrae (see illustration). It leaves the paired nerve roots, which go out through the intervertebral openings formed by two adjacent vertebrae. Then the roots are joined together and form a sacral nerve plexus (so called because it is near the sacrum). It leaves several nerves, including sciatic.

The sciatic nerve is the largest in the human body. It contains many sensitive and motor fibers and passes over the posterior surface of the buttocks and thighs, and then splits onto the lower legs into smaller branches - tibial and peroneal nerves.

Comments

Post a Comment

Popular posts from this blog

Symptoms of sciatica in a few steps

There are several ways to describe sciatic anomalies. To say the least: Those who suffer from sciatic pain often express their pain as follows: "I feel like pulling from my body to my feet" or "I feel as painful as my legs." This means pain sciatica sciatica pain. "The patient may say that the pain spreads to the lower part of the body and that the sciatic pain is spinalized and visible on the hip or perhaps in the stump, but almost all areas of the sciatic nerves feel a little uncom fortable, but the pain usually follows the hip, waist, lower back. The sense of pain can be as sharp as possible and can not be tolerated. Sometimes it feels like a jolt or an electric shock. Symptoms may worsen if you cough or sneeze. In addition, prolonged sitting also worsens the indications. Manifestations usually manifest themselves on one side of the body.
Post a Comment
Read more

The causes of sciatica disease in 9 steps

Is a painful disease in the nerve called "sciatica" which extends from the fourth and fifth lumbar vertebrae to the heels. Sciatica pain manifests itself in two ways: either a constantly mild pain or a severe pain that occasionally occurs. The pain extends along the sciatic nerve, from hips to heels. Sciatica pain is sometimes confused with "belly button". The patient is laid down on the back to see that the pain is caused by the sciatic nerve. The leg is lifted up slowly while in tension. The sciatic suspicion becomes definite if there is a screeching pain extending from the back of the thigh to the bicep or even to the foot. The longer the leg is raised, the more severe the pain will be. Sciatic causes: There are many different causes of sciatica. We can list the headlines as follows: Spinal calcification Tumors of the spine Disk hernias Spinal tuberculosis (congenital) Some birth injuries Fractures, dislocations and bruises in the lower parts of the
Post a Comment
Read more