Scoliosis Research Society (SRS)
An International Organization Dedicated to the Education, Research and Treatment of Spinal Deformity
Our Mission is to Foster Optimal Care for All Patients with Spinal Deformities
The diagnosis of idiopathic infantile scoliosis is based on the age of onset, the absence of any other spinal cord problems, the location of the curve, findings on physical examination, and x-rays. The characteristic finding on physical examination is that the curve is typically between the shoulder blades or in the thoracic region of the spine and the spine curves to the left. The MRI is normal in infantile idiopathic scoliosis.
Infantile curves that reach 30 degrees tend to continue to worsen without treatment. In addition to the degree of scoliosis, the Mehta rib vertebral angle degree difference has greater prognostic value. The Mehta angle is determined by identifying the vertebra in the apex or middle of the curve and measuring the difference in the angle of each rib attaching to the vertebra (Figure 1). A Mehta difference of 20 degrees or less is associated with a non progressive or resolving curve in most cases. Girls with right sided curves tend to have more progressive curves than other infants. 25 year follow up studies demonstrate a normal quality of life in patients with non progressive infantile scoliosis.