Review Question - QID 5488

A 40-year-old male presents with the injury seen in Figure A after a fall from height. He undergoes closed reduction with sedation in the trauma bay. The house staff who initially evaluated the patient does not recall if the patient had palpable pulses prior to reduction but does state that the foot felt "cool". Following closed reduction he has palpable dorsalis pedis pulses and brisk capillary refill. His knee is able to be flexed to approximately 60 degrees prior to any clinical instability. AP and Lateral X-rays of his knee demonstrate a congruent reduction in a knee immobilizer. His ankle brachial index (ABI) is 0.95. What is the appropriate next step in the treatment of this patient?