Key findings
- Overall, 64% of fragility fracture patients assessed by this FLS were judged to have an indication for osteoporosis treatment (448/705), including 71% after major osteoporotic fracture (311/438) and 51% after non-major osteoporotic fracture (137/267).
- The Number Needed to Screen (NNS) was low in both groups, showing that FLS assessment is efficient beyond traditional major fracture categories: 1.41 for major osteoporotic fractures and 1.95 for non-major fractures.
- Among patients with treatment indication, bone mineral density and fracture risk profiles were similar across fracture categories, suggesting that restricting FLS to major osteoporotic fractures may miss many patients who could benefit from secondary fracture prevention.
Summary
This study examined 705 adults aged 50 years or older who were assessed in a Fracture Liaison Service (FLS) at Skaraborg Hospital in Skövde, Sweden, after a recent fracture. Patients with both major osteoporotic fractures (MOF) and non-major osteoporotic fractures (non-MOF) were included. MOF were defined as fractures of the hip, vertebrae, proximal humerus, wrist or pelvis. Non-MOF were defined as fractures of the elbow, clavicle, rib, knee, ankle, and a residual “other” category. The ICD-10 codes used to classify patients into these two groups are provided in the supplementary information available here (Tables S2A and S2B).
The investigators compared bone mineral density, clinical risk factors, FRAX® probability, vertebral fracture assessment, trabecular bone score and physician-assessed osteoporosis treatment indication to determine whether non-major fractures also identify patients who may benefit from treatment.
Overall, almost two-thirds of patients (64%) assessed through the FLS had an indication for osteoporosis treatment. As expected, treatment indication was more common after major osteoporotic fracture (71%) than after non-major osteoporotic fracture (51%), but it was still present in just over half of the non-MOF group. The Number Needed to Screen (NNS) was low in both groups, and among patients judged to need treatment, bone mineral density and risk profiles were similar across fracture categories. The findings suggest that limiting FLS case-finding to major osteoporotic fractures may miss a substantial number of patients who would benefit from osteoporosis assessment and secondary fracture prevention.
The full publication is available here as an open-access article.