Pelvic Fractures

Q: Describe the radiographic abnormalities noted in the pelvis of this 12-year-old male neutered Jack Russell terrier, and how do these findings correlate with the history of trauma provided? show answer

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Q: What does the cystourethrogram reveal about the integrity of the urinary tract, and how is the positional change in the urinary bladder explained? show answer

A: The cystourethrogram revealed that there is no leakage of contrast material from the urethra or the urinary bladder, indicating that the integrity of the urinary tract is maintained. The abnormal cranioventral position of the bladder as compared to its usual anatomical location is likely the result of the prepubic tendon rupture, which would normally support the bladder in its proper position.

Q: Explain the pathophysiological basis for the absence of a palpable bladder in this patient and why it was important to rule out uroabdomen despite good peritoneal detail and no visible effusion. show answer

A: The absence of a palpable bladder could be due to several factors resulting from the trauma: the bladder could be ruptured, emptied secondary to the trauma, or displaced due to structural damage such as a prepubic tendon avulsion. An empty bladder would not be palpable, and significant displacement due to the prepubic tendon avulsion could move the bladder from its normal anatomical position. Ruling out uroabdomen (urine leakage into the abdominal cavity) was critical despite the clear peritoneal detail and the absence of visible effusion because uroabdomen can be a life-threatening condition. It can also influence prognosis and determine the necessity for surgical intervention. The administration of the cystourethrogram and the absence of contrast leakage were essential to confirm the integrity of the urinary tract and to plan appropriate treatment.