A zygapophyseal joint sprain, also known as a facet joint sprain, occurs when one of the small joints between vertebrae in the spine becomes inflamed or injured. These joints, called zygapophyseal joi...
Yersinia arthritis, a form of reactive arthritis, is an inflammatory joint condition that develops in response to an infection by the bacterium Yersinia enterocolitica or Yersinia pseudotuberculosis. ...

