Structural Scoliosis vs Nonstructural Scoliosis
Generally speaking, there are two categories of scoliosis – structural scoliosis and nonstructural scoliosis, often known as functional scoliosis, which is actually more of a posture problem or muscle imbalance rather than a true scoliosis. A true structural scoliosis involves spinal rotation in addition to a side-to-side curve of the spine of 10 degrees or more. By definition, nonstructural scoliosis isn’t truly a scoliosis because it does not include rotation of the spine, and it appears to go away when the body is in various positions.