Different types of curves

Doctors group curves of the spine by their location, shape, pattern, and cause. They use this information to decide how best to treat the scoliosis.

1. Location – To identify a curve's location, doctors find the apex of the curve (the vertebra within the curve that is the most off-center); the location of the apex is the "location" of the curve. A thoracic curve has its apex in the thoracic area (the part of the spine to which the ribs attach). A lumbar curve has its apex in the lower back. A thoracolumbar curve has its apex where the thoracic and lumbar vertebrae join (see "Normal Spine" diagram).

 2. Shape – The curve usually is S- or C-shaped.

 3.Pattern – Curves frequently follow patterns that have been studied in previous patients (see "Curve Patterns" diagram). The larger the curve is, the more likely it will progress (depending on the amount of growth remaining).