I am an incomplete quad who rides 100+ miles a week and I wear AFO braces which make it very easy to use clipless peddles. You just have to make sure that the tension isn't so tight that you cannot clip out in a hurry. Getting advice from this group is a GOOD thing but I would also recommend finding a PT who specializes in sports recovery as well. My AFO's are hand formed to my legs and feet and are the reason I can walk, ride, drive, fly planes, kayak, mtb bike, etc. If there is a will...there is a way. Good luck.