Fig. 4.
Micro-CT images and micro-architectural analysis of new bones at defect sites treated with different composite hydrogels: (a) 3D reconstructed images of defect sites at 4, 8 and 12 weeks after implantation. Scale bar, 2 mm. (b) 2D images of coronary sections at 4, 8 and 12 weeks after implantation. Scale bar, 2 mm. (c) 2D images of sagittal sections at 4, 8 and 12 weeks after implantation. Scale bar, 2 mm. (d) Bone volume/total volume ratio (BV/TV). (e) Bone volume. (f) Trabecular separation (Tb. Sp). (g) Trabecular thickness (Tb. Th). *P≤0.05, **P≤0.01, and ***P≤0.001.