Table 2.

Abbreviations and descriptions

Abbreviations	Description
PW	Pedicle width
PWc	Pedicle width on the concave side
PWv	Pedicle width on the convex side
PWn	Pedicle width in normal controls
PL	Pedicle length
PLc	Pedicle length on the concave side
PLv	Pedicle length on the convex side
PLn	Pedicle length in normal controls
AV-SC	Apical vertebra in the structural curve
NAV-SC	Nonapical vertebra in the structural curve
AV-NSC	Apical vertebra in the nonstructural curve
NAV-NSC	Nonapical vertebra in the nonstructural curve
VDPW	Variation degree of pedicle width
VDPL	Variation degree of pedicle length