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

摘要: 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 BMD their relationship trauma mechanisms in young middle-aged patients femoral neck Materials methods Altogether, 185 fracture aged 20-69 were included. BMD, fat-free mass index (FFMI) determined by dual-X-ray absorptiometry (DXA), registered. Results Ninety per cent the whole population had below mean age. In (<50years), 27% Z-score BMD-2 SD. More than half (50-69years) osteopenia, T-score -1 -25, 35% osteoporosis, T-score<-25, at neck. Patients low-energy trauma, sport injury or high-energy median standardised 0702, 0740 vs. 0803g/cm(2) (P=003), FFMI 159, 177 175kg/m(2) (P<0001), respectively. FFMI<10th percentile an age- gender-matched reference observed one-third. Conclusions A majority low neck, one-third reduced (i.e. sarcopenia). following significantly lower other mechanisms. DXA examination both could be value especially those trauma.