What does a fracture of the thoracic spine vertebral really mean?

Crushing or cracking. The most common is a crushing of the part of the bone in front. The bone partially collapses, and height is lost. Occasionally bone is pushed up against the spinal cord; if there is numbness, tingling, weakness in the legs should be evaluated by a specialist. There can also be minor breaks in other parts of the bone that usually heal without problem.
This depends on. The type and reason for the fracture such as is it a stable or unstable one, does it involve any spinal cord compromise, is it due to any underlying tumor or infection or related to lower bone density or metabolic disease and what the actual symptoms are. This needs to be evaluated by a physician to give the specific answers for the specific type of fracture in the thoracic or spinal chest region.