What is the role of imaging studies in the preprocedural evaluation of lower-extremity amputations?

Updated: Apr 29, 2021
  • Author: Janos P Ertl, MD; Chief Editor: Vinod K Panchbhavi, MD, FACS, FAOA, FABOS, FAAOS  more...
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Answer

Anteroposterior (AP) and lateral radiography of the involved extremity is obtained.

Computed tomography (CT) and magnetic resonance imaging (MRI) are performed for the patient's tumor workup or for osteomyelitis to ensure that the surgical margins are appropriate.

Technetium-99m (99mTc) pyrophosphate bone scanning has been used to predict the need for amputation in persons with electrical burns and frostbite. A 94% sensitivity rate and a 100% specificity rate have been reported in demarcating viable tissues from nonviable tissues.


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