What is scoliosis and what causes it?

A deformity characterized by a curvature of the spine to the right or to the left — in an “S” or “C” shape.

Author: Dr. Elfana Suleymanova Medically reviewed

In a healthy body, the spinal column consists of 33–34 vertebrae — 7 cervical, 12 thoracic, 5 lumbar, 5 sacral and 4–5 coccygeal — connected to one another by ligaments, joints and discs.

In a normal spine, when viewed from the front and back, the vertebrae line up in a straight line from top to bottom. From the side, it has normal curves: forward in the neck (cervical), backward in the chest (thoracic), forward in the lower back (lumbar) and backward in the sacrum.

Scoliosis is a curve of this straight line to the right or left. When the spine curves, the vertebrae rotate, and this can result in a rib hump in the thoracic region and asymmetry in the lumbosacral region.

1

Causes of scoliosis

  • Genetic predisposition. Some people are more prone to scoliosis due to hereditary factors.
  • Poor posture. Sitting in an incorrect position for long periods or not holding the back properly.
  • Trauma. Injuries to newborns during birth or cesarean section, as well as spinal injuries that occur later.
  • Irregular growth. Rapid growth spurts during puberty, uneven bone growth.
2

Scoliosis may begin earlier

The true onset of scoliosis may date back to the time the baby was in the womb. The fetus remaining in an abnormal position for a long time (transverse lie, breech presentation, accelerated labor, delay in the birth canal), holding the baby incorrectly during breastfeeding, and the baby starting to walk without having crawled — these are the earliest risk factors for scoliosis.

In these situations, pathological intraosseous tensions develop in the occipital bone, the temporal bone, the first cervical vertebra, the sacrum and the pelvic bones. As the bones begin to grow, these areas of tension cause deformities in the structure of the bone.

The 4 main types of scoliosis — schematicSegmentalfront viewDorsalfront viewLordoticside viewKyphoticside view
The red section shows the segment where the curve is located, and the small lines show the rotation of the vertebrae. The diagram is for information only — it is not a measurement of degrees.

We look not at where the pain is, but at where it comes from.
— Dr. Elfana Suleymanova, Center Director · Internist and osteopathic physician

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