37 y/o man presented to the emergency department complaining | Figure 1

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37 y/o man presented to the emergency department complaining of a swollen and painful ankle following a fall down the stairs. He states he rolled his ankle in the process. On examination skin is intact. Neurovascularly intact. Edema and tenderness around ankle with discoloration.

1. What is the diagnosis?
2. What is the purpose of the two pins that can be seen?
3. What classifications do you know for this diagnosis?
4. What is the emergency management for this case?
5. What is the definitive treatment?
   Will update this case with answers and pictures as soon as I'm done with it.