The Height Gain in Scoliotic Deformity Correction: Assessed by New Predictive Formula

Figure 2

“𝐴𝐵” curve is the arc of a circle with center “𝑂,” and the radius of this circle is 𝑅, the corresponding angle to the arc is 𝜃 (Cobb angle), while the AVT is 𝑋₀.