Wu SC, et al. - In this retrospective analysis, researchers investigated how ageing can impact the incidence and site of femoral fractures in trauma patients, considering gender, body weight, and trauma mechanisms. From adult trauma patients aged ≥ 20 years who were admitted into a Level I trauma center, data were obtained and analyzed, and based on femoral fracture locations, they grouped 3,859 adult patients with 4,011 fracture sites into 5 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 higher risk of developing proximal type A and type B fractures, while a lower risk of developing fractures in the shaft and distal femur was observed among older patients examined in this study utilizing the propensity scores which account for the risk of a fracture in a particular femoral site. Age-related factors could broadly explain this incidence of fracture site; a reduction in bone strength and falling being the most common mechanism of trauma in older patients. Findings showed a difference in the involvement of age in the incidence of femoral fracture sites in the trauma patients.