Spatiotemporal Changes of Calcitonin Gene-Related Peptide Innervation in Spinal Fusion

Figure 1

Photomicrographs of the fusion mass on day 7 (a, e), day 14 (b, f), day 21 (c, g), and day 28 (d, h) after spinal fusion surgery. (a), (b), (c), and (d) ×40. (e), (f), (g), and (h) ×400. Black arrows: allograft. F: fibrous tissue. D: deeply stained cell. N: newly formed bone. Bar: 500 μm in ×40 magnification; 50 μm in ×400 magnification.

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