Images of histological sections. The bluish green area shows periosteal and perichondral (Safranin-O/fast green stain; ×40). (A) A section obtained from the tibia of a 3-month-old Bama miniature pig. The pig used for comparison did not have an operation. (B) The periosteal and perichondral beneath the hinged plate are intact after 18 weeks. (C) The periosteal and perichondral beneath the conventional tension-band plate are almost vanished after 18 weeks.