Figure 2.

Optimal timing for fracture callus chondrocyte graft (FCCG) isolation. Previous longitudinal investigations of fracture callus size and composition20 have demonstrated (A) maximal soft tissue callus volume at 10 days postfracture (red line) and maximal hard tissue callus between 14 and 21 days postfracture (blue dashed line). (B) at 10 days postinjury, hypertrophic chondrocytes found within the soft tissue callus are producing VEGF‐(A) Top panel: Scale bar = 1 mm. Bottom panel: Scale bar = 200 μm