Bone cement distribution is a potential predictor to the reconstructive effects of unilateral percutaneous kyphoplasty in OVCFs: a retrospective study

Table 2 Radiographic parameters

Parameters	Group I	Group II	Group III	P value
Pre-op AVRR	.792 ± .176	.753 ± .171	.696 ± .148	.092
Post-op AVHR	.835 ± .159	.859 ± .175	.826 ± .103	.546
Anterior VHRR	.043 ± .066	.106 ± .069	.130 ± .110	.007*
Group I–II				.007*
Group I–III				.000*
Group II–III				.280
Pre-op CA (°)	6.51 ± 11.47	6.84 ± 8.05	10.30 ± 8.37	.200
Post-op CA (°)	4.84 ± 11.33	4.23 ± 7.82	6.07 ± 6.82	.672
CR	1.66 ± 2.47	2.61 ± 2.42	4.24 ± 4.08	.089
Group I–II				.241
Group I–III				.019*
Group II–III				.048*
BV (ml)	4.15 ± 1.25	5.46 ± 2.05	8.43 ± 2.20	.000*
Group I–II				.000*
Group I–III				.000*
Group II–III				.000*
BE occurrence	0/17	4/22	16/43	NA
Group I–II				.140
Group I–III				.016*
Group II–III				.240

Pre-op preoperative, Post-op postoperative, AVHR anterior vertebral height ratio, CA kyphotic Cobb angle, AVHRR anterior vertebral height restoration rate, CR Cobb angle correction, BV bone cement volume, BE bone cement extravasation, NA not applicable
*P value by analysis of variances and multiple comparisons, independent sample T test, Kruskal-Wallis one-way ANOVA test, and chi-square test

ISSN: 1749-799X