 So what do I do when I cannot wear my prosthetic leg due to pain or equipment issues? Good question. We go to plan B and that is this, which is a walking crutch. I strap this to your puppy on without falling over, dear god, and it allows me a kind of mobility. However, this is not nearly as comfortable as having a prosthetic leg that I can like actually bend my own knee and use, but it does allow me to be up and about hands-free and walk around the house and do some stuff when my leg is out of commission.