Geometric Variables from DXA of the Radius Predict Forearm Fracture Load In Vitro

摘要: The purpose of this investigation was to determine the cross-sectional geometry radius in female and male cadaveric specimens using dual-energy X-ray absorptiometry (DXA), measure accuracy technique compared with a digitizing procedure, correlation between these DXA-based geometric variables load required produce forearm fracture. Paired intact forearms were scanned at distal site approximately 30% length from end. area moments inertia two sections 10 computed attenuation data. One member each pair then sectioned location, which is mostly cortical bone, section traced on pad. other loaded failure servohydraulic materials test system. moment correlated significantly digitized results (r2=0.93 for area; r2=0.95 moment; P<0.001). conventional bone mineral density DXA did not associate load, but minimum 10% strong significant manner fracture force (r2=0.67 r2=0.66 determination radial geometry, therefore, should have better discriminatory capabilities than studies fragility risk.