Fig. 4From: Effects of different intensities of intermittent pneumatic soft-tissue compression on bone defect repairVG staining at the 2 and the 4 weeks after surgery. Notes: A The newly formed bone is stained red, fibrous tissue is blue and the defect are black (Van Gieson’s staining); scale bars: 2 mm. B The percentage of bone-forming area for different groups. Results are mean ± standard deviation (χ ± SD); *P < 0.05 vs group A, B, D; **P < 0.05 vs group B, C, DBack to article page