Figure 8. New bone morphology and histological analysis of new bone formation. (A) Micro-CT images of rats four weeks after surgery, and regional enlargement of the defect area. (B) Comparative quantitative and statistical analysis of BMD, BV/TV, TB.sp, and TB.th. (n = 5) (C). Defects of femoral condyle were stained with H&E and Masson’s stain four weeks after surgery. (D) Enlarged H&E and Masson’s stained images four weeks after surgery. The one-way ANOVA was used for B. *P < 0.05; **P < 0.01; ***P < 0.001; Abbreviation: ns: not statistically significant.