Table 2.

Mean density of intracortical canals and outer environment connections at different levels of the shaft

	Femurs (n = 8)				Tibias (n = 8)
	Mid-Shaft			Dist-Shaft	Mid-Shaft			Prox-Shaft
Density vascular canals (n/mm2)	138 ± 30.4		P < 0.001		71.12 ± 14.0	120.2 ± 20.6	P < 0.001	57.52 ± 14.7
	endosteal	periosteal		endosteal	endosteal	periosteal		endosteal
Density of openings (n/mm)	1.32 ± 0.316	1.24 ± 0.291	ns	–	1.48 ± 0.34	1.49 ± 0.333	ns
Density of openings (n/mm)	1.32 ± 0.316	–	ns	1.01 ± 0.278	1.48 ± 0.34	–	ns	1.16 ± 0.578
Density of openings (n/mm)	1.32 ± 0.316	–	P < 0.001	2.81 ± 0.954*	1.48 ± 0.34	–	P < 0.05	2.82 ± 1.055*

^*In the columns of dist/prox-shaft the boxes marked by asterisks correspond to the sum of endosteal and periosteal openings.