[Measuring bone density--applications, critique, consequences]

The supporters of bone density measurement or osteodensitometry claim that it is possible to reduce the frequency of fractures if a lack of systemic bone mineral content is detected in time. Important topical points of criticism are brought forward. Meaningful clinical use is only possible if reference data referring to population are accepted, and standardised quality assurance is safeguarded. Densitometrical methods do not guarantee sufficient prognostic data neither for diagnostic purposes nor for estimating the risk of fracture. In addition, they are not reliable enough for assessment of a treatment. The compensation of costs by statutory health insurance for bone density measurements as therapeutic aid should be restricted to regular controls of bone density after having diagnosed a pathological fracture, and to controls of certain secondary forms of osteoporosis.