Low bone mineral density and fat-free mass in younger patients with a femoral neck fracture

Background Reduced bone mineral density (BMD) together with muscle wasting and dysfunction, that is sarcopenia, emerges as a risk factor for hip fracture. The aim of this study was to examine body composition and BMD and their relationship with trauma mechanisms in young and middle‐aged patients with femoral neck fracture. Materials and methods Altogether, 185 patients with femoral neck fracture aged 20–69 were included. BMD, body composition and fat‐free mass index (FFMI) were determined by dual‐X‐ray absorptiometry (DXA), and trauma mechanisms were registered. Results Ninety per cent of the whole study population had a femoral neck BMD below the mean for age. In the young patients (