The control of the balance between these cells is quite complex and incompletely understood. This balance is called remodeling . If the cells that resorb bone are more active than the cells that form new bone, osteoporosis results. This condition is characterized by low bone density and deterioration of bone tissue. It increases the risk of fractures, which produce chronic pain, disability, and deformity.
Fracture occurs typically in the spine, hip, and wrist.
In the general population, one in four women and one in eight men over age 50 are thought to be affected. A DEXA measures bone mineral density or bone strength in the spine, hip, and other bones by scanning and filtering x rays passed through the bones. The results of a DEXA indicate the risk of fractures. In the general population, there are many risk factors for developing low bone density. The osteoporosis you are probably familiar with commonly affects postmenopausal women.