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Review Question - QID 8216

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QID 8216 (Type "8216" in App Search)
Figures 77a and 77b are the radiographs of a 45-year-old man who fell into a ditch and sustained a twisting injury to the left lower extremity. Examination in the emergency department reveals normal neurologic function, no skin compromise, and palpable pedal pulses. The patient has no other complaints and has an otherwise normal examination. What additional imaging study is recommended?
  • A
  • B

MRI of the left knee

4%

21/591

Arterial duplex of the left leg

2%

9/591

CT scan of the left ankle

93%

547/591

CT scan of the chest, abdomen, and pelvis

1%

3/591

CT scan of the cervical, thoracic, and lumbar spine

1%

7/591

  • A
  • B

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Spiral distal tibia fractures are frequently associated with intra-articular fracture extension, usually involving the posterior malleolus. This may or may not be visible on the radiographs. A CT scan of the ankle is recommended to identify this associated injury. This is especially important when considering intramedullary nail fixation of the distal tibia fracture because a previously nondisplaced intra-articular fracture may become displaced as the nail is inserted to its final depth. Anteroposterior screw fixation prior to nailing may be useful in these cases. With the patient's history, there is no indication of thoracic, abdominal, pelvic, or spinal trauma. There are no signs of vascular injury and preoperative MRI is not indicated.

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