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Calculation principle of parameters: (a) Cobb angles, (b) pelvis inclination, (c) vertical balance angle, (d) components of SHS. Green areas denote approximate parts of point cloud used for calculation. THKA: thoracic kyphosis angle, LLA: lumbar lordosis angle, PIA: pelvic inclination angle, VBA: vertical balance angle (vertical trunk inclination in the sagittal plane.
