Paget's disease is a metabolic bone disorder of unknown origin that causes an increased and irregular bone formation. Eventually the deformed bone becomes larger, weaker and prone to fracture.

The orthopaedic surgeon specializes in the diagnosis and treatment of disorders of the body's bones, joints, ligaments, muscles, and tendons (musculoskeletal disorders.)

The prognosis is the probable outcome of a disease. It refers to the likelihood of a patient's recovery.