Table 2. Micro-CT evaluation at 4 weeks.

Items	PLA (n = 5)	PLA/HA (n = 5)	MSCs (n = 5)
BV/TV (%)	1.466 ± 0.185	4.672 ± 0.410##	6.148 ± 0.626##△△
Tb. N (1/mm)	0.825 ± 0.061	1.016 ± 0.057##	1.210 ± 0.077##△△
Tb. Th (mm)	0.120 ± 0.013	0.137 ± 0.007	0.142 ± 0.009#
Tb. Sp (mm)	1.127 ± 0.070	0.951 ± 0.077##	0.845 ± 0.054##

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