Sorry to hear that you will be on crutches for deer season!
I had a fall myself and I am going to miss the first week or so of bow season. That is not too big of a deal down here though, it is usually much too hot the first week of bow season.
Now to your question, I would be sure to leave plenty early enough to give yourself time to get to the stand. That way you can take your time and not sweat as much.
I would wait to put on any heavy clothes after you get where you are going. That way your coat would not be really sweaty.
Getting your heavy clothes sweaty will end up making you cold after you sit down and start hunting. Also putting your coat on after you get there should help a little by containing your scent. Good luck!