A 5 yr old indoor-outdoor domestic longhair red tabby cat presented for evaluation of a 1-day history of hiding, urinating and defecating outside the litterbox, and vocalizing when picked up. Physical examination revealed significant pain on palpation of the caudal sternum where an approximately 8 × 6 cm contusion was noted. Sedated thoracic radiographs revealed a luxated fifth intersternebral joint with the sixth sternebra being cranioventrally displaced (along with the seventh and eight sternebrae) to the level of the mid fourth sternebra. There were sharply marginated, short oblique fractures of the distal sixth costal cartilages bilaterally with mild dorsal displacement of the distal segment. The sternal luxation was palpated more aggressively once the patient was sedated and deemed to be stable. Because of the stability of the luxation and absence of sternebral fractures, conservative medical management in the form of analgesics and rest was instituted. Repeat thoracic radiographs 2 wk after presentation revealed an unchanged sternal luxation. Twelve months after presentation, the patient presented for an unrelated lameness and, in that timeframe, has exhibited no sequelae to the sternal luxation, which still palpates stable and is radiographically unchanged.
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http://dx.doi.org/10.5326/JAAHA-MS-7291 | DOI Listing |
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