Risk factors for insufficient reduction after short-segment posterior fixation for thoracolumbar burst fractures: Does the interval from injury onset to surgery affect reduction of fractured vertebrae?

Table 1 Univariate analysis for continuous and ordinal variables

Causal factors	N	ΔVBA (SD)	p value	Reduction rate (SDA)	p value
Gender
Male	140	10.5 (6.6)		66.1 (28.8)
Female	113	12.5 (6.9)	0.023^*	76.2 (24.4)	0.003^*
Affected level
T10–L1	151	11.9 (6.7)		67.7 (25.5)
L2 and L3	102	10.7 (6.8)	0.161^*	74.8 (29.5)	0.050^*
Combination of vertebroplasty
Yes	115	12.1 (7.5)		74.2 (25.0)
No	138	10.9 (6.0)	0.168^*	67.6 (28.8)	0.052^*
AO classification
A3 and A4	164	10.7 (6.2)		70.1 (27.9)
B1 and B2	89	12.7 (7.5)	0.039^*	71.4 (26.4)	0.704^*

ISSN: 1749-799X