Table 3. Micro-CT evaluation at 12 weeks.

Items	PLA (n = 5)	PLA/HA (n = 5)	MSCs (n = 5)
BV/TV (%)	12.586 ± 1.882	14.416 ± 3.458	27.456 ± 2.282##△△
Tb. N (1/mm)	1.439 ± 0.084	1.503 ± 0.067	1.796 ± 0.198##△
Tb. Th (mm)	0.177 ± 0.020	0.179 ± 0.012	0.267 ± 0.031##△△
Tb. Sp (mm)	0.815 ± 0.062	0.780 ± 0.045	0.570 ± 0.089##△△

BV, bone volume; TV, total volume; Tb. N, trabecular number; Tb. Th, trabecular thickness; Tb. Sp, trabecular separation. ^## vs. PLA, p < 0.01; ^△ vs. PLA/HA, p < 0.05; ^△△ vs. PLA/HA, p < 0.01.