Updated 18 June 2015

Women may not need bone testing until 65

Post-menopausal women in their fifties who have normal results on a bone density test may not need such a test for 10 or 15 years.


A post-menopausal woman who is 50 and still shows "normal" readings on her bone density test may not need her next such test for 10 or even 15 years, a new study finds.

However, researchers led by Dr. Margaret Gourlay of the University of North Carolina at Chapel Hill stressed that younger women who do show signs of bone loss are at high risk for a major fracture, and do require regular testing.

The study involved almost 4,100 post-menopausal American women between the ages of 50 and 64 who took part in the ongoing Women's Health Initiative study.

All of the women had undergone a bone mineral density test to assess their risk for fractures and osteoporosis. The women were not taking hormones, calcium or vitamin D supplements. They also had never had a broken bone, the team said.

The results: Among women whose tests showed no signs of osteoporosis, it took nearly 13 years for just 1 percent of the youngest women, and almost eight years for 1 percent of the oldest women, to suffer a spinal fracture or broken hip.

It also took roughly 12 years for 3 percent of the younger women and nearly nine years for 3 percent of the older women without osteoporosis to sustain a spinal fracture or break a hip, wrist or arm, Gourlay's team said.

The researchers believe that - barring significant health issues - younger post-menopausal women with no sign of osteoporosis do not need a repeat bone mineral density test for 10 to 15 years.

The study was funded by the U.S. National Institutes of Health and published in the June issue of Menopause.

Two experts in women's health says the new study gives older women valuable guidance.

"In the past, both physicians and their patients have been led to believe that bone mineral density testing should be performed routinely - even as often as every two years," said Dr. Rebecca Brightman, an assistant clinical professor of obstetrics, gynaecology and reproductive science at the Icahn School of Medicine at Mount Sinai, in New York City.

The timing of osteoporosis testing should always be a decision made by a woman and her doctor, she said. However, the new study suggests that, "if a recently menopausal woman has a normal bone density she may be able to wait up to 10-15 years before it is repeated," Brightman said.

Dr. Caroline Messer is an endocrinologist at Lenox Hill Hospital, also in New York City. She believes the study does have "one major drawback," in that it only looked at the time elapsed until a woman experienced a fracture - not until she first showed signs of bone loss or osteoporosis.

So, "screening at shorter intervals may confer additional benefits beyond short-term fracture risk reduction," Messer explained. Catching bone loss before it progresses might help prevent osteoporosis, which in turn might prevent fractures from occurring, she explained.

The study authors also stressed that women whose bones already showed signs of weakening at the time of their first bone test will need to be monitored more closely. Women who had osteoporosis when the study began were at much higher risk for broken bones - within just three years, 1 percent of these women suffered a major fracture, the authors said. By 2.5 years, a full 3 percent of these women had such an injury.

Read more:

New bone-building drug could offer hope for osteoporosis sufferers

Osteoporosis: make your home fall free

Osteoporosis: certain drugs can increase your risk of falling

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Healthy Bones

Tereza is the CEO of the National Osteoporosis Foundation and worked as a Nursing Sister in the field of Osteoporosis for 18 years prior to her appointment with the Foundation. She used to be the Educational Officer for the Foundation and co-wrote the patient brochure on Osteoporosis. Read more

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