In a double spinal curve, which curve is generally more flexible?

In a double spinal curve, the minor curve is typically more flexible than the major curve. This is primarily due to the nature of how spinal curves develop and respond to forces. The major curve usually represents the primary structural deformity in conditions such as scoliosis, where it tends to be more rigid due to the presence of vertebral rotation and structural changes in the spine itself.

On the other hand, the minor curve, which often develops as a compensatory response to the major curve, tends to have greater flexibility. This flexibility allows the spine to adapt and align more effectively, maintaining balance and function despite the presence of the major curve. The adaptability of the minor curve often allows for improved mobility and function compared to the more fixed nature of the major curve.

Understanding these relationships between the major and minor curves is essential for effective management in orthotic treatment, as targeting flexibility in the minor curve may provide a more optimal outcome in patient care.