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Congenital Ulnar Carpal Bone Luxation In A Miniature Donkey Treated By Pancarpal Arthrodesis
An 18-month-old miniature donkey was presented for evaluation and treatment of a left carpal valgus present since birth. Clinical examination confirmed the severe and unstable carpal valgus. Radiographs and computed tomography revealed a caudally luxated ulnar carpal bone, malformation of the distal radial epiphysis, as well as a complete collapse of the lateral part of the radiocarpal joint. Outward rotation of the limb distal to the joint collapse was also visible. Surgical treatment was elected and a pancarpal arthrodesis performed using two short 3.5 mm locking compression plates. Ten months later, the donkey was pasture sound and radiographs showed complete fusion of the carpal joints.