Fig. 6

Bland–Altman plots were employed to elucidate the disparities between the Cobb angle and UCA for thoracic (a) and lumbar (b) segments in the coronal plane and between the TK/LL angle and USLA for thoracic (c) and lumbar (d) segments in the sagittal plane. The blue centreline represents the mean deviation. The blue dashed Line indicates the 95% concordance limit. The red dashed line indicates the clinically acceptable limit. LL: lumbar lordosis, TK: thoracic kyphosis, UCA: ultrasound curve angle, USLA: ultrasound lamina angle.