Quietly, so sorry to hear about the fall........I live in the Midwest, so totally can relate - it's only January but this ice, snow, and sub-zero temps have gotten old. PM me and maybe I can take your mind off of your knee.
So sorry about your fall. I fell down a flight of stair and landed on my knees in gravel. Thought I broke it but got what they call a bone bruise. Swelled up and stayed that way for months. It's no fun. Keep icing.