Science fiction or the future?
While a living body is equipped with an amazing power of self-repair, there are limits to what problems can heal or be cured. Perhaps that's where technology can step in, at least until we learn how to heal living tissue better.
A design team at the Colorado State University has a pending patent for canine exoskeleton for mobility and rehabilitation.
You could think of it as a "smart brace" that not only supports partially paralyzed or weakened hind legs but helps them move. Science fiction or the future?
Certainly very interesting.
Canine Orthotronic Mobility System