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    Steroid Injections for Back Pain: Fracture Risk?

    Study of older adults doesn't prove that steroids are to blame, but experts advise caution

    WebMD News from HealthDay

    By Amy Norton

    HealthDay Reporter

    FRIDAY, June 14 (HealthDay News) -- Older adults who get steroid injections to ease lower back and leg pain may have increased odds of suffering a spine fracture, a new study suggests.

    It's not clear, however, whether the treatment is to blame, according to experts. But they said the findings, which were published June 5 in the Journal of Bone and Joint Surgery, suggest that older patients with low bone density should be cautious about steroid injections.

    The treatment involves injecting anti-inflammatory steroids into the area of the spine where a nerve is being compressed. The source of that compression could be a herniated disc, for instance, or spinal stenosis -- a condition common in older adults, in which the open spaces in the spinal column gradually narrow.

    Steroid injections can bring temporary pain relief, but it's known that steroids in general can cause bone density to decrease over time. And a recent study found that older women given steroids for spine-related pain showed a quicker rate of bone loss than other women their age.

    The new findings go a step further by showing an increased fracture risk in steroid patients, said Dr. Shlomo Mandel, the lead researcher on both studies.

    Still, he said, the study, which was based on medical records, had "a lot of limitations."

    "I want to be careful not to imply that people shouldn't get these injections," said Mandel, an orthopedic physician with the Henry Ford Health System in Detroit.

    The findings are based on medical records from 3,000 Henry Ford patients who had steroid injections for spine-related pain, and another 3,000 who got other treatments. They were 66 years old, on average.

    Overall, about 150 patients were later diagnosed with a vertebral fracture, Mandel said. Vertebral fractures are cracks in small bones of the spine, and in an older adult with low bone mass they can happen without any major trauma.

    On average, Mandel's team found, steroid patients were at greater risk of a vertebral fracture -- with the risk climbing 21 percent with each round of injections.

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