Methods: 12 patients with tibial nonunion and 12 normal adults accepted the DSA of the lower limbs, and we research the condition of blood circulation.

• 方法：对12例胫骨骨不连患者(实验组)及12例正常人(对照组)进行下肢动脉造影，观察胫骨骨折局部的血液循环情况。