Proximal femur geometry to detect and distinguish femoral neck fractures from trochanteric fractures in postmenopausal women

摘要: Some proximal femur geometry (PFG) parameters, measured by dual-energy X-ray absorptiometry (DXA), have been reported to discriminate subjects with hip fracture. Relatively few studies tested their ability femoral neck fractures from those of the trochanter. To this end we performed a cross-sectional study in population 547 menopausal women over 69 years age (n = 88), trochanteric 93) or controls 366). Hip axis length (HAL), neck-shaft angle (NSA), diameter (FND) and shaft (FSD) were DXA, as well bone mineral density (BMD) nonfractured at neck, trochanter Ward's triangle. In fractured subjects, BMD was lower each measurement site. HAL longer NSA wider fractures. With logistic regression age-adjusted odds ratio (OR) for 1 standard deviation (SD) decrease significantly associated site fracture (femoral BMD: OR 1.9, 95% confidence interval (95% CI): 1.4-2.5; 1.6, CI 1.2-2.0; triangle 1.7, 1.3-2.2) 2.6, 1.9-3.6; 3.0, 2.2-4.1; 1.8, 1.4-2.3). Age-adjusted SD increases (OR 2.2, 1.7-2.8) 1.3, 1.1-1.6) risk only best predictive model strongest predictors site-matched both types Trochanteric had greatest area (0.78, error (SE) 0.02) under receiver operating characteristic curve fractures, whereas (0.72, SE 0.03) These results confirm association support evidence that PFG plays significant role prediction, since is parameter among tested.