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A 48-year-old tree surgeon is evaluated in the trauma bay after falling from 20 feet onto his back. He endorses significant low back pain and an inability to ambulate. Radiographs and a CT scan are obtained, shown in Figures A-C. In discussing the patient's prognosis, you inform him that the following factor best predicts neurologic dysfunction with his injury pattern:
Time to surgery
Body mass index
Displacement of the fracture
Time to corticosteroid administration
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A 25-year-old female was involved in a high-speed motor vehicle accident and sustained the injuries shown in Figures A-C. Which of the following provides the most stable fixation construct?
Bilateral iliosacral screws
Anterior pelvic ring plating with bilateral iliosacral screw fixation
Transsacral bar fixation
Posterior tension band fixation
A 24-year-old patient presents after a fall from the balcony of a third story building in which he landed on his feet. He reports lumbar back pain and numbness in his perineum region. Radiographs of his hips and pelvis are seen in Figure A, while CT images are shown in Figures B and C. How is this fracture pattern best classified?
Young-Burgess APC Type II
Young-Burgess LC Type I
"U" Type Spinopelvic Dissociation
A 35 year-old female presents after prolonged extrication from a motor vehicle collision complaining of severe pelvic pain. Physical examination reveals diminished perianal sensation. She is otherwise neurologically intact. Figures A through D are radiographs and representative CT cuts of her injury. Which of the following nerve roots has likely been injured by the acute trauma?
A 20-year-old patient presents after jumping from the window of a burning building with a sacral fracture. Which of the following fracture patterns seen in Figures A through E would give this patient the highest risk of associated nerve injury?
Which of the following is the most stable construct for fixation of an unstable transforaminal sacral fractures?
Combined iliosacral and lumbopelvic fixation (triangular osteosynthesis)
Anterior pelvic ring plating with bilateral sacroilliac percutaenous screw fixation
Transiliac bars with anterior pelvic ring plating