This is a long shot but I remember reading a story about thirty years ago about a decapitated head that is still conscious/alive and pulls itself painstakingly up a flight of stairs using teeth and tongue and eventually reattaches itself to a body, controls the arms enough to sew the head on, and exacts its revenge on the murderer…
Note that the story is at least thirty years old. I think it may be a minor classic of the genre.
Googling was not very helpful.