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    New Test for Osteoporosis Fracture Risk

    Heel Ultrasound Could Be Alternative to X-Ray Bone Density Testing for Some Patients
    WebMD Health News
    Reviewed by Louise Chang, MD

    June 24, 2008 -- An ultrasound exam of the heel combined with an assessment of specific risk factors for bone loss and falling can help predict fracture risk due to osteoporosis, a new study suggests.

    Researchers say the combination approach could be used to identify older people with a low fracture risk who may not need X-ray-based bone density tests.

    The National Osteoporosis Foundation recommends bone density X-ray testing for all women aged 65 and older and all men aged 70 and older, regardless of their risk factors for bone loss. Testing is also recommended for younger men and women with identified risk factors.

    But many people who should have the test are not getting it, researcher Idris Guessous, MD, tells WebMD. "In many areas, lack of access and cost keep people from getting tested, and this is likely to get worse as the population at risk for osteoporosis grows."

    By one estimate, the incidence of hip fracture related to bone loss is expected to quadruple by the year 2050. Roughly 10 million Americans -- four out of five of whom are women -- have a diagnosis of osteoporosis; 34 million have low bone mass. Low bone mass puts you at increased risk for developing osteoporosis.

    Even if the numbers don't rise as expected, it is clear that the incidence of osteoporosis will outpace the economic resources available to treat the disease, Guessous says. "The development of strategies to better identify [people] that need to be tested is crucial."

    Heel Ultrasound Predicts Risk

    With this in mind, Guessous and colleagues from Switzerland's Lausanne University Hospital developed their own risk assessment model combining an ultrasound exam of the heel with evaluation of established risk factors for osteoporosis and a simple, office-based test to determine a patient's risk for falling.

    They used the model on 6,174 women between the ages of 70 and 85 without a diagnosis of osteoporosis.

    All the women were evaluated with a heel-bone quantitative ultrasound (QUS), a test that measures bone density at the heel using sound waves rather than radiation.

    Other recorded risk factors for fracture included being over the age of 75, having a history of fracture, having a recent fall, and failing a test in which participants were asked to rise from a chair three times in quick succession without using their arms for balance.

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