Well, when you fell, you must've landed feet-first, causing your leg to absorb the shock, and there's so much swelling around the fracture, that the pressure's stopping the blood from flowing to your foot.
-Pa, kada ste pali, mora da ste pali s nogama naprijed, zbog čega je vaša noga apsorbirala udarac, i zbog toliko oteklina oko frakture, tlak zaustavlja krv od oticanja u stopalo.