Fig. 2. Three-dimensional reconstruction of the Haversian system. Different colors represent the different networks of the Haversian and Volkmann's canals. Transparent gray shows the outline of the bone fragment. Many, large, and complex reddish networks of the Haversian and Volkmann's canals are located on the endosteal side, while relatively simple networks are located on the periosteal side. All images have the same magnification. ^a)Endosteal side.