Bisphosphonates are recommended as first-line agents to reduce fracture risk in patients with osteoporosis and have in general an excellent safety profile. However, recent reports have noted that prolonged use of bisphosphonates may be associated with rare but serious adverse effects, namely atypical femur fractures (AFF), an atraumatic subset of subtrochanteric and diaphyseal fractures. The overarching aim of this project is to contribute to the characterization of clinical, biomechanical, radiological and genetic predictors of AFF, associated or not with bisphosphonate and-or denosumab therapy. AFF arise on the lateral (external) aspect of the subtrochanteric and diaphyseal regions of the femur, regions subjected to high mechanical loads. Because of this unique distribution, the investigators hypothesis is that patients with AFF demonstrate specific geometrical variations of their femur whereby baseline tensile forces applied to the lateral cortex are higher and might favour the appearance of these rare stress fractures. Measurements to investigate these geometric variations with be calculated from 3D images reconstructed using scans procured using the EOS® low irradiation 2D-3D X-Ray scanner.
Age range
45 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Predictors associated with AFFs
Timeframe: Baseline