6Richter M,Wippermann B,Krettek C,et al.Fractures and fracture dislocations of the midfoot:occurrence,causes and long-term results.Foot Ankle Int,2001,22 (5):392.
7Berlat GC; Lee TH,Massa EG.Talor neck fractures orthop.Clin North Am,2001,32(1):53.
8Jukkala Pk,Pohjonen T,Laitinen O,et at.Biodegradation and strength retention of poly Lactide screws in vivo An experirm ental tong-term study in sheep.Ann Chir Gynaecol,2001,90(3):219.