Type II resin-acrylic external skeletal fixation in the repair of proximal radial and ulnar fracture in a llama (Lama glama)

Abstract

This report describes the use of external skeletal fixation using acrylic connecting bars to repair a complex fracture in a llama. A 10-month-old male llama (Lama glama), weighing around 45 kg, was referred for the study owing to the presence of a fracture. Plain radiographs showed long oblique fracture of the proximal third of the radius with the presence of a fissure and multifragmentary fracture between proximal and middle third of the ulna. A Type II resin-acrylic external skeletal fixator was then applied. Two months after surgery, radiographs showed bridging of the fracture site by callus and partial obliteration of the fracture line, and the external fixator was removed. At the last follow-up, 9 years after surgery, the llama was able to bear full weight on the left limb during walking and trotting, with no signs of lameness. The incorporation of transfixion pin in acrylic sidebars rather than in a cast can be used as another option to treat fractures in llamas.