Piedmontese bull with a traumatic, unilateral peripheral nerve lesion of the radial nerve. The radial nerve innervates the extensor muscles of the elbow and phalanges. The scapulohumeral joint is open, the elbow is dropped, and the limb appears abnormally extended, with the hoof resting on the ground on its dorsal surface (a "hand-kissing" posture). Cutaneous sensitivity is generally diminished or absent. The prognosis is guarded, and the outcome depends on the severity of the lesion. Treatment: vitamin B1, hyperemic agents. The animal should be isolated from the group and housed in a stall with appropriate bedding. A bandage or splint may be helpful to keep the limb extended for 2–3 weeks.
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