Which statement accurately contrasts the typical curve patterns of infantile and juvenile idiopathic scoliosis?

Which statement accurately contrasts the typical curve patterns of infantile and juvenile idiopathic scoliosis?

• A. Infantile has right thoracic deviation; juvenile has left thoracic deviation
• B. Infantile has thoracolumbar deviation; juvenile has cervical deviation
• C. Infantile has left thoracic deviation; juvenile has right thoracic deviation
• D. Infantile has left thoracic deviation; juvenile has left thoracic deviation

Answer: (D)

The pattern being tested is the typical direction and location of curves seen in early-onset scoliosis for two age groups. In many observations, infantile idiopathic scoliosis commonly presents with a left-sided thoracic curve, and juvenile idiopathic scoliosis can also show a left thoracic deviation as a characteristic pattern in its early presentation. Among the options, the statement that both age groups show left thoracic deviation best reflects the commonly reported direction for this region across these forms, making it the best fit for describing their typical patterns. The other options describe deviations or regions (right thoracic, thoracolumbar, cervical) that are not as consistently characteristic of these two groups.

The pattern being tested is the typical direction and location of curves seen in early-onset scoliosis for two age groups. In many observations, infantile idiopathic scoliosis commonly presents with a left-sided thoracic curve, and juvenile idiopathic scoliosis can also show a left thoracic deviation as a characteristic pattern in its early presentation. Among the options, the statement that both age groups show left thoracic deviation best reflects the commonly reported direction for this region across these forms, making it the best fit for describing their typical patterns. The other options describe deviations or regions (right thoracic, thoracolumbar, cervical) that are not as consistently characteristic of these two groups.