Table 1.

Area of bone^a

Group	Mean	SD	P
	mm²	mm²
A (Spongiosa)	7.03	3.22
B (Blood)	0	0	<0.001
C (BMAC)	3.57	2.50	<0.001
D (BMSC)	0	0	<0.001

^aT-test of Groups B–D versus Group A. P < 0.001 indicates significantly more bone formation in Group A compared with the indicated group.