Table 1.

Bone fusion scores determined by X-ray analysis.

	X-ray scores				Average rank	χ2	P
	0	1	2	3
4-week data
AFPBP	0	6	2	0	30.25	27.773	0.000
Si-CaP	7	1	0	0	11.75∗
Si-CaP/AFPBP	3	5	0	0	20.75
Si-CaP/AFPBP/BMSCs	0	6	2	0	30.25
8-week data
AFPBP	0	2	0	6	29.00	26.367	0.000
Si-CaP	5	2	1	0	12.75∗
Si-CaP/AFPBP	3	0	2	3	21.00
Si-CaP/AFPBP/BMSCs	0	0	1	7	31.25
12-week data
AFPBP	0	0	0	8	31.50	32.252	0.000
Si-CaP	4	1	2	1	13.88∗
Si-CaP/AFPBP	0	3	4	1	19.13
Si-CaP/AFPBP/BMSCs	0	0	0	8	31.50

∗P ​< ​0.05 vs Si-CaP/AFPBP/BMSCs.