Figure 4

Microstructure of bone callus.
H&E staining (a1–a4) and micro-CT scanning (b1–b4) showing internal connections and porous structure of the bone callus. (c1–c4) Two-dimensional analyses of BV/TV, Tb.N, Tb.Th, and Tb.Sp in H&E stained sections (d1–d4) Three-dimensional analysis of porosity, Tb.N, Tb.Th, and Tb.Sp observed by micro-CT; the two black horizontal lines in each graph represent the upper and lower 95% confidence interval of each parameter in the CI.