NF1 and Kyphoscoliosis: Taking the etiology of kyphoscoliosis into consideration, we observed a reduction rate of 0.015 ± 0.010 g/(cm2·month) in 4 (4/6, 67%) NF1, 0.034 ± 0.024 g/(cm2·month) in 5 (5/6, 83%) CS, and 0.029 ± 0.015 g/(cm2·month) in 8 (8/8, 100%) IS cases at LS.