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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?
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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
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?