A 28-year-old man is brought to the emergency department following a high-speed motor vehicle collision. He has a severe pelvic fracture. On physical examination, there is blood at the urethral meatus, a scrotal hematoma, and a high-riding prostate on digital rectal examination. He is unable to void despite a strong urge. Arrange the following management steps in the most appropriate chronological order for this patient.
- 1Perform a retrograde urethrogram to evaluate for urethral disruption
- 2Place a suprapubic cystostomy tube for urinary diversion
- 3Observe for several months to allow pelvic hematoma resolution
- 4Perform delayed definitive surgical urethroplasty
Answer
The correct order of management is to first perform a retrograde urethrogram, followed by suprapubic cystostomy tube placement, then an observation period, and finally delayed definitive surgical urethroplasty.
The patient presents with classic signs of a posterior urethral injury, which include blood at the urethral meatus, a high-riding prostate, and inability to void following severe pelvic trauma. In this scenario, blind insertion of a transurethral Foley catheter is strictly contraindicated. The appropriate first step is a retrograde urethrogram to visualize the urethra. Once a tear is confirmed by the extravasation of contrast, urinary diversion is achieved via the placement of a suprapubic cystostomy tube. Immediate surgical repair is associated with high rates of stricture, incontinence, and impotence due to the distorted anatomy and large pelvic hematoma. Therefore, the standard of care is an observation period of 3 to 6 months to allow the hematoma to reabsorb and scar tissue to stabilize, followed by a delayed definitive surgical urethroplasty.
Step-by-Step Solution
Key Concept
The standard management for suspected posterior urethral injury involves avoiding transurethral catheterization, diagnosing with a retrograde urethrogram, temporizing with a suprapubic tube, and performing delayed formal reconstruction.