When Tisoy, our spitz, was a puppy, he was so reckless so we had to cage him or leash him so he wouldn't hurt himself. But in spite of the leash, he was able to climb the stairs and fall down 3 steps. We heard him crying and it was a pitiful sight that he had hurt a paw. But after some weeks, he did it again and the other front paw got damaged. He could barely walk so we had him inside a cage to recuperate. It took a week before he could walk again but with a limp. And that limp vanished after 2 or 3 months.
It's sad when the pet has health issues particularly injuries like what happened to Tisoy. His front paws still bear that accident - both are deformed and don't look sturdy enough.