Paget's Disease Treatment
Paget's disease is a chronic condition of bone characterized by disorder of the normal bone remodelling process. Normal bone has a balance of forces that act to lay down new bone and take up old bone. This relationship (referred to as "bone remodelling") is essential for maintaining the normal calcium levels in our blood. In bone affected by Paget's disease, one or more localized areas of bone are affected by abnormal bone remodelling, which is disturbed and not synchronized. As a result, the bone that is formed is abnormal, enlarged, not as dense, brittle, and prone to breakage (fracture).
Paget's disease affects older skeletal bone of adults. It's estimated that 1% of adults in the U.S. have Paget's disease. There is also an extremely rare form of Paget's disease in children, referred to as juvenile Paget's disease. Paget's disease is also known as osteitis deformans and Paget disease.
What are risk factors for Paget's disease?
The onset of Paget's disease is typically after 55 years of age. Recently, certain genes have been associated with Paget's disease, including the Sequestosome 1 gene on chromosome 5. Virus infection may be necessary to trigger Paget's disease in people who have inherited the genetic tendency to develop the condition by having these genes. Paget's disease is inherited in approximately one-third of patients. Therefore, it is not uncommon for a patient with the condition to have a family history of the disease.
What are Paget's disease symptoms and signs?
Paget's disease causes no symptoms in a majority of those with the condition and is often incidentally noted when X-ray tests are obtained for other reasons. However, Paget's disease can cause bone pain, deformity, fracture, and arthritis. The bone pain of Paget's disease is located in the affected area of bone. The most common bones affected by Paget's disease include the spine, the thigh bone (femur), the pelvis, the skull, the collarbone (clavicle), and the upper arm bone (humerus). Fractures can occur because affected bone is not as strong as normal bone. Arthritis occurs because of the deformity of affected bone adjacent to the joint and because of bowing of affected long bones. The type of arthritis that results in osteoarthritis.
The symptoms of Paget's disease depend on the bones affected and the severity of the disease. Enlarged bones can pinch adjacent nerves, causing tingling and numbness. Bowing of the legs can occur. Hip or knee involvement can lead to arthritis, limping, as well as pain and stiffness of the hip or knee. Headache, loss of vision, and hearing loss can occur when bones of the skull are affected. With very widespread Paget's disease, it is possible to develop congestive heart failure due to an increased workload on the heart. Sometimes the skin overlying the involved bone is warmer than usual. This is because of the increased blood supply to pagetic bone.