Vascular endothelial growth factor for the treatment of femoral head osteonecrosis: An experimental study in canines

Table 2 Bone volume/total volume and trabecular thickness mean values across the different groups on the totality of specimens (decalcified and non-decalcified)

	N	mean	SD	P-value vs No-t	P-value vs t-NS	P-value vs t-VEGF-n
BV/TV
No-t	7	26739	11135	-	NS	NS
t-NS	5	30902	6672	NS	-	NS
t-VEGFn	7	38853	7591	NS	NS	-
t-VEGFpump-n	7	47485	7009	< 0.001	0.011	NS
t-VEGFpump-μ	7	44634	6638	0.002	0.053	NS
t-VEGFμ	7	48005	6573	< 0.001	0.008	0.27
Total	40	39863	11013
TbTh
No-t	7	97891	33316	-	NS	NS
t-NS	5	107149	35711	NS	-	NS
t-VEGFn	7	120315	26799	NS	NS	-
t-VEGFpump-n	7	147738	28295	0.020	0.145	NS
t-VEGFpump-μ	7	149884	22642	0.014	0.111	NS
t-VEGFμ	7	148194	16770	0.018	0.137	0.42
Total	40	129597	33360

Statistically significant differences are provided as estimated after the Tukey’s HSD criterion while non-significant differences and denoted as NS or not shown. The same P-values are reported for TbTh for comparative reasons. BV/TV: Bone volume/total volume; TbTh: Trabecular thickness; VEGF: Vascular endothelial growth factor; NS: Not significant.