Radiographic and angiographic studies of radio-ulnar fracture repair by intramedulllary indwelling of a modified stainless steel pin in dogs

In the present study, intra-medullary indwelling of a modified Steinmann pin for radius and hemicerclage wiring for ulna was employed for fracture fixation in 12 dogs. Modified Thomas splint was used for 3 weeks as external immobilization. The radiographic studies on 4^th, 8^th and 12^th weeks showed the process of bridging of fractured ends by callus formation without deformity, angulation or any other complication indicating complete bony union. Angiography was performed on 22^nd postoperative day, while injecting 7 mL of urografin into the brachial artery. The angiogram revealed establishment of neovascularization to the fracture site and the normal vascular architecture was not disturbed during surgery.