Quantitative assessment of the percentage of mean surface area (± SD) of established marrow spaces throughout the new bone tissue at different groups. C= normal control; I= defective sites + autologous bone, II= defective sites left empty, III= defective sites + PRP + HA/TCP scaffolds, IV= defective sites + HA/TCP scaffolds + hADSCs + PRP
According to statistical analysis, the percentage of mean surface area of established marrow spaces in group IV was significantly higher when compared to that of groups I and normal control (**P<0.01), II (***P<0.001) and III (*P<0.05). The related value in group III was significantly higher comparing to that of groups I and normal control (¥P<0.05) and II (¥¥P<0.01). Groups I and normal control demonstrated statistically significant increase in comparison to group II (££P<0.01). The percentage of mean surface area of established marrow spaces showed no significant difference between groups I and normal control.