Table 2.

Parameters considered. Plumbline = distance of C7 from the vertical plumbline tangential to S1. ASIS: Anterior Superior Iliac Spines.

Sagittal plane	Frontal plane	Horizontal plane
Plumbline (mm). Positive value: C7 forward	Plumbline (mm). Positive value: C7 to the right	Angle of trunk rotation (deg). Positive value: right shoulder forward (ref. ASIS line)
Angle of thoracic kyphosis (deg). Positive value: increase of kyphosis	Asymmetry of shoulders (mm). Positive value: left shoulder up. (ref. ASIS line)
Angle of lumbar lordosis (deg). Positive value: increase of kyphosis