Prevalence and predictors of bone mineral density testing after distal radius fracture in menopausal women.

BACKGROUND: Osteoporosis screening guidelines recommend bone mineral density (BMD) testing following fragility fractures. Nevertheless, previous studies have demonstrated low rates of osteoporosis screening. Diagnosis and treatment of osteoporosis is essential for prevention of future fractures, however not much is known about the factors associated with receiving BMD testing in this patient population. The purpose of this study was to evaluate the prevalence, timing, and predictors of BMD testing following distal radius fractures (DRF) in menopausal women. METHODS: We queried a national insurance database to identify menopausal women aged 45-64 years with a DRF between years 2013 and 2020. The rate of BMD testing within 1 year of injury was calculated. Multivariable logistic regression analysis was used to evaluate the effect of patient- and injury-related variables on the likelihood of undergoing BMD testing following DRF. RESULTS: Among 31,728 patients meeting inclusion criteria (mean ± SD age: 57.5 ± 4.3), 3,886 (12.2 %) received a BMD test within 1 year following DRF. The rate of BMD tests decreased with the highest rate of 14.5 % in 2015 and the lowest rate of 10.5 % in 2020. Mean time from DRF to BMD testing was 143 ± 102 days. Patients aged 60-64 had the highest adjusted odds of receiving BMD testing (OR 2.85 [95 % CI: 2.26 to 3.64]). Factors associated with increased likelihood of BMD testing included surgical intervention (OR 1.38 [1.28-1.48]), rheumatoid arthritis (OR 1.22 [1.06-1.40]), osteoarthritis (OR 1.28 [1.19-1.37]), breast cancer (OR 1.35 [1.16-1.56]), and vitamin D deficiency (OR 1.29 [1.17-1.43]). Factors associated with decreased likelihood of testing included tobacco use (OR 0.90 [0.84-0.97]), patients with Medicaid (OR 0.73 [0.61-0.86]) or Medicare (OR 0.76 [0.65-0.88]) insurance, and living in Southern (OR 0.67 [0.62-0.73]) or Western (OR 0.69 [0.62-0.77]) regions of the United States. Obesity, diabetes, renal disease, and early menopause were not associated with BMD testing. CONCLUSIONS: Despite guidelines recommending BMD testing after low-energy fractures, rates of BMD testing were low and decreased among menopausal women with DRF. Mean time to BMD testing was 4.7 months, indicating substantial delays in workup. Known risk factors for osteoporosis did not reliably predict likelihood of BMD testing. LEVEL OF EVIDENCE: Level III, prognostic.

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