Osteoporosis Screening and Diagnosis in Postmenopausal Women

Screening Recommendations

The American College of Radiology recommends that all postmenopausal women aged 65 years and older should undergo routine DXA screening regardless of risk factors 2
The American College of Radiology and Annals of Internal Medicine suggest that postmenopausal women younger than 65 years should undergo DXA screening if they have additional risk factors for fracture 1, 3
For postmenopausal women aged 60-64 years with risk factors, the benefits of screening are comparable to routine screening in older women, according to the Annals of Internal Medicine 3, 4
The Annals of Internal Medicine recommends no routine screening for postmenopausal women younger than 60 years without risk factors 4

Low body weight (weight < 70 kg) is the single best predictor of low bone mineral density, as reported by the Annals of Internal Medicine 5, 3
Previous fragility fracture at any age is a key risk factor, according to Praxis Medical Insights 2
Long-term glucocorticoid therapy is a risk factor, as stated by Praxis Medical Insights 2
Medical conditions associated with bone loss, such as hyperparathyroidism, hypogonadism, and chronic inflammatory diseases, are risk factors, according to Praxis Medical Insights 2
Family history of osteoporosis is a risk factor, although less evidence supports this as a sole trigger for screening, as reported by the Annals of Internal Medicine 5
No current use of estrogen therapy is a risk factor, according to the Annals of Internal Medicine 5

Bone density measured at the femoral neck by DXA is the best predictor of hip fracture, as reported by the Annals of Internal Medicine and the Journal of the American College of Radiology 5, 3, 1
Quantitative ultrasonography, radiographic absorptiometry, single-energy x-ray absorptiometry, and peripheral quantitative computed tomography are alternative testing methods, according to the Annals of Internal Medicine and the Journal of the American College of Radiology 5, 3, 1

A minimum of 2 years is needed to reliably measure changes in bone mineral density, as reported by the Annals of Internal Medicine 5, 3
For individuals with normal bone density or mild osteopenia, repeat DXA in 2-3 years, according to Praxis Medical Insights 2
For individuals with osteoporosis or on treatment, repeat DXA in 1-2 years to monitor treatment effectiveness, as recommended by Praxis Medical Insights 2
The yield of repeated screening will be higher in older women, those with lower bone mineral density at baseline, and those with other risk factors for fracture, according to the Annals of Internal Medicine 3

The likelihood of being diagnosed with osteoporosis varies depending on the site and type of bone measurement test, number of sites tested, brand of densitometer used, and reference range, as reported by the Annals of Internal Medicine 3
African-American women on average have higher bone mineral density than white women at the same age and are thus less likely to benefit from screening, according to the Annals of Internal Medicine 5, 3
Some patients with bone mineral density above the treatment threshold may still qualify for treatment based on vertebral fractures detected through vertebral fracture assessment scans, as stated by the Journal of the American College of Radiology 1

The FRAX tool can be used to calculate 10-year fracture risk to guide treatment decisions, according to Praxis Medical Insights 2