Correction loss following short-segment posterior fixation for traumatic thoracolumbar burst fractures related to endplate and intervertebral disc destruction

Table 5 Comparison of radiological parameters between patients with and without vertebroplasty

	Vertebroplasty (+) (n = 17)	Vertebroplasty (−) (n = 31)	P-values
SKA (degrees)
Pre-operative	12.4 (2.8), 6.7, 18.0	11.1 (2.1), 6.9, 15.3	0.728*
At surgery	3.0 (2.1), −1.2, 7.2	3.8 (1.6), 0.65, 6.9	0.768*
At follow-up	11.4 (3.2), 5.0, 17.8	15.3 (2.4), 10.5, 20.0	0.358*
ΔSKA	8.4 (2.7), 3.1, 13.8	11.5 (2.0), 7.5, 15.5	0.411**
AVBHR (%)
Pre-operative	62.8 (3.9), 54.9, 70.6	69.6 (2.9), 63.8, 75.4	0.164*
At surgery	94.1 (2.7), 88.6, 99.5	87.7 (2.0), 83.7, 91.7	0.064*
At follow-up	85.8 (3.9), 78.0, 93.7	77.2 (2.9), 71.4, 83.0	0.082*
ΔAVBHR	8.2 (2.7), 2.9, 13.6	10.5 (2.0), 6.5, 14.5	0.502**
Residual endplate deformity, n	8	13	0.732^a

Data are expressed as mean (SD), 95% confident intervals. P-values are calculated between the data of patients with and without vertebroplasty by t-test*, Mann-Whitney test** and chi-square test^a
SKA segmental kyphotic angle, AVBHR anterior vertebral body height ratio

ISSN: 1471-2474