Which type of scoliotic curve is expected to progress more given its location?

The expected progression of scoliotic curves is influenced by their anatomical location and the complexity of the curve type. In the case of a single lumbar curve, this type of scoliosis is particularly prone to progression due to its biomechanical and compensatory dynamics.

The lumbar spine has a larger range of motion and bears significant weight during daily activities, making it more susceptible to structural changes over time. A single lumbar curve can also lead to asymmetric loading patterns on the vertebrae, which can exacerbate the curvature. The lumbar region's relative motion and the lack of compensatory curves can mean that any deviation from normal alignment is more likely to worsen.

Additionally, other curve types, such as cervical or thoracolumbar, generally have different progression patterns influenced by their unique biomechanical properties. For example, cervical curves typically have less gravitational pull affecting their progression, while thoracolumbar curves can often be more stable due to the supportive mechanisms involved from the upper and lower spine. Doubly major curves, comprised of both thoracic and lumbar components, may also demonstrate some compensatory features that can limit progression in one area due to balance with the other.

Therefore, the single lumbar curve is considered to have a higher propensity for significant progression, given its location