Fig 5. Histopathological features of necrotic femoral head tissues by hematoxylin eosin (HE) staining.

Note: A. arrangement of trabecular bone in the control group; B. arrangement of trabecular bone at the 6^th week of treatment in the experimental group; C. arrangement of trabecular bone at the 8^th week of treatment in the experiment group; D. arrangement of trabecular bone at the 10^th week of treatment in the experiment group; E. lacunae in trabecular bone in the control group; F. lacunae in trabecular bone in the experimental group; experiments were repeated 3 times.