Figure 4. Histology for the Group Stimulated Ten Days After Surgery (Group C48).
When the axial displacement is started ten days after surgery, the stimulated limbs have no cartilage and have bony bridging by day 48 (shown above). The unstimulated controls have a substantial amount of bone, but still contain distinct areas of cartilage (in red). The figure shows: (a) a central section of a stimulated gap, (b) a peripheral section of a stimulated gap, (c) a central section of a control gap, and (d) a peripheral section of a control gap. Note that the difference in color between the top and the bottom images are an artifact of the staining procedure.