Redução fechada e fixação esquelética externa tipo II para o tratamento de fraturas de tibiotarso em pombos domésticos (Columba livia)

The aim of this study was to evaluate the use of closed reduction and type-II external skeletal fixation for treatment of tibiotarsus fractures in domestic pigeons (Columba livia). Twelve adult domestic pigeons were used. Anesthesia was induced with xylazine and ketamine hydrochloride; the right tibiotarsus was manually fractured by digital pressure applied at the mid-diaphysis. Four Kirschner wires were placed through both cortices of the bone, two proximal and two distal to the fracture site, and, after closed reduction of the fracture, they were stabilized by two acrilic bars, one in the lateral and another in the medial surface of the tibiotarsus. Abnormalities in bone angulation were observed radiographically in five birds; however, the function of the limb was not noticeably impaired. The mean time ± standard deviation for fracture healing was 24.8 ± 4.89 days. The results of this experiment demonstrate that closed reduction and application of a type-II external skeletal fixation are effective for treatment of tibiotarsus fracture in domestic pigeons (Columba livia).