Baxter G M, Wallace C E
Department of Large Animal Medicine, College of Veterinary Medicine, University of Georgia, Athens 30602.
J Am Vet Med Assoc. 1991 Feb 15;198(4):665-8.
A 405-kg heifer sustained a compound fracture of the distal portion of the radius and ulna after being hit by a car. The fracture was thoroughly debrided, lavaged, and reduced with the heifer under general anesthesia. The fracture was immobilized with a modified walking cast, using 2 fully threaded 6.4-mm (outside diameter) Steinmann pins placed through the proximal portion of the radius. The pins were incorporated into a full-limb fiberglass cast, and a 0.5-cm X 2.25-cm aluminum walking bar was positioned medially and laterally on the limb. The modified walking cast was removed after 7 weeks, and the fracture healed without complication. The transfixation pins and aluminum walking bar helped reduce the strong compressive and rotational forces at the fracture site. The modified walking cast can potentially be used for fixation of a variety of fractures in large animals.
一头405千克重的小母牛被汽车撞后，桡骨和尺骨远端发生了开放性骨折。在全身麻醉下，对骨折部位进行了彻底清创、冲洗，并进行了复位。使用两根外径6.4毫米的全螺纹斯氏针穿过桡骨近端，用改良的行走石膏固定骨折部位。将针嵌入全肢玻璃纤维石膏中，并在肢体的内侧和外侧放置一根0.5厘米×2.25厘米的铝制行走杆。7周后拆除改良的行走石膏，骨折顺利愈合，无并发症。贯穿固定针和铝制行走杆有助于减少骨折部位的强大压缩力和旋转力。改良的行走石膏可能可用于固定大型动物的各种骨折。
