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Which of the following elbow injuries as found in Figures A-E best characterizes the radiographic "double-arc" sign?
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An 88-year-old female presents after a fall onto her left arm. She reports isolated left elbow pain, and radiographs are shown in Figure A. She lives in an assisted living facility, and reports no other major medical problems. The best outcome can be expected with which of the following definitive treatment options?
Open reduction internal fixation of the distal humerus fracture
Nonsurgical management with early passive range of motion exercises
Initial nonsurgical management followed by interpositional arthroplasty when the fracture has healed
Total elbow arthroplasty
Excision of the capitellar fragments and fixation of the trochlear fragments
A 20-year-old man falls from his bicycle. He is going to be scheduled for open reduction internal fixation. What best describes the injury shown in Figure A and B?
Capitellum fracture with extension into the trochlea
Radial head and capitellum fracture
Isolated capitellum fracture