Tracheal Collapse and Stenosis of Calves

Abstract

Tracheal collapse and/or stenosis on calves, while undoubtedly not a new condition is being more frequently recognized as a potential cause of severe respiratory distress. The condition is routinely associated with anterior rib fractures which have occurred during dystocia. The calves generally exhibit normal health until fracture healing is advanced. Bone callus formation at or near the thoracic inlet impairs development of the trachea or exerts sufficient pressure to cause collapse of the tracheal lumen.