Which spinal condition is defined as abnormal lateral curvature?

Which spinal condition is defined as abnormal lateral curvature?

• A. Kyphosis
• B. Lordosis
• C. Scoliosis
• D. None of these

Answer: (C)

Abnormal lateral curvature is scoliosis. The spine normally has curves seen from the side, but scoliosis involves a side-to-side deviation in the coronal plane, often forming an S or C shape and sometimes with vertebral rotation. Kyphosis is an excessive backward rounding of the upper spine, and lordosis is an excessive inward curve in the lower spine, so neither describes a lateral deviation. Scoliosis is the condition defined by that sideways bend. Clinically, it's assessed on X-ray with the Cobb angle to quantify the degree of curvature.

Abnormal lateral curvature is scoliosis. The spine normally has curves seen from the side, but scoliosis involves a side-to-side deviation in the coronal plane, often forming an S or C shape and sometimes with vertebral rotation. Kyphosis is an excessive backward rounding of the upper spine, and lordosis is an excessive inward curve in the lower spine, so neither describes a lateral deviation. Scoliosis is the condition defined by that sideways bend. Clinically, it's assessed on X-ray with the Cobb angle to quantify the degree of curvature.