Aayshah, a 13-year-old girl, is being evaluated by her health care provider. Aayshah, who has an abnormal lateral curvature in the thoracic region of her spine, was born with one leg slightly shorter than the other. The health care provider determines that the curvature is progressing in severity, and she refers Aayshah to an orthotist for treatment.

For what skeletal problem is Aayshah being treated?
Lordosis
Osteoporosis
Herniated disk
Scoliosis