The Influence of Ageing on the Incidence and Site of Trauma Femoral Fractures: a Cross-sectional Analysis

This retrospective study reviewed data from adult trauma patients aged ≥ 20 years who were admitted into a Level I trauma center, between January 1, 2009 and December 31, 2016. According to the femoral fracture locations, 3859 adult patients with 4011 fracture sites were grouped into five subgroups: proximal type A (n = 1,359), proximal type B (n= 1,487), proximal type C (n = 59), femoral shaft (n = 640), and distal femur (n = 466) groups. A multivariate logistic regression analysis was applied to identify independent effects of the univariate predictive variables on the occurrence of fracture at a specific site. The propensity score accounts for the risk of a fracture at a specific femoral site was calculated and presented visually with age in a two-dimensional plot.