Table 5.

Segmental kyphosis angle (SKA, in degrees) measured bisegmentally: correction, loss and gain, distinction between mono- and bisegmental anterior spinal fusion

	Segmental kyphosis angle (Synex bisegmental)	Segmental kyphosis angle (Synex monosegmental)
Correction (°)	20.3±9.9 (P=0.005)	18.4±10.5 (P=0.043)
Loss (°) up to 12 months	−3.9±3.2 (P=0.018)	−2.8±1.9 (NS)
Gain (°) up to 12 months	16.4±8.9 (P=0.005)	15.6±12.0 (P=0.043)
Loss (°) between12 months and follow-up	−1.0±1.5 (NS)	−1.8±0.8 (P=0.043)
Gain (°) up to follow-up	19.4±7.9 (P=0.005)	13.8±11.7 (NS)
Number	10	5