Lameness can occur due to many issues. A most common cause is soft tissue such as muscle, tendon, ligament as well as vertebrae subluxation. Muscles stabilize joints and ligaments define the range of motion a joint can move. Subluxation can short circuit the motor nerves which control these muscles and allow for improper support.
Immobility of a joint can cause degeneration within 7 days. It is imperative to have your dog checked by a Board Certified Animal Chiropractor to prevent early signs of degeneration and thus a shorter life span.