What Is FRAX®?
As noted in the chapter about diagnosing osteoporosis (see Chap. 1), T-scores alone may not be adequate to predict the risk for fragility fractures and diagnose the disease state of osteoporosis because bone density testing only partially explains the risk for fracture. A large part of resistance to fracture or bone strength is related to elements comprising the quality of the skeleton which bone density cannot measure. These characteristics are related to a patient’s age and the microscopic architecture in the bone which are “hidden” from scanning. For the practitioner, these characteristics can be determined from a patient’s age and pertinent historical information.