The Cobb angle is mainly used in the diagnosis and management of scoliosis, defined as an abnormal sideways curvature and twisting of the spine.
But using X-rays taken in other orientations, healthcare professionals may also use the Cobb angle to quantify other types of abnormal spinal curvatures, such as kyphosis and lordosis.
The Cobb angle can also be helpful in the surgical treatment of certain types of spinal fractures.