Fig. 2

Hematoxylin and eosin staining for new bone tissue after operation 4 weeks (a), 8 weeks (e), and 12 weeks (i); B group after operation 4 weeks (b), 8 weeks (f), and 12 weeks (j); C group after operation 4 weeks (c), 8 weeks (g), and 12 weeks (k); and D group after operation 4 weeks (d), 8 weeks (h), and 12 weeks (l)