Effect of Age on the Patterns of Traumatic Femoral Fractures: Seven Years of Experience at a Regional Tertiary Hospital

Objective Femoral fractures are a common cause of mortality and functional loss, mainly among older people, and there are few studies about the age in relation to traumatic femoral fractures. The aim of this study was to investigate the effect of age on the patterns of traumatic femoral fractures in patients presenting to our regional tertiary hospital. Methods The records of 2020 patients who presented with traumatic femoral fractures between 2013 and 2019 were retrospectively reviewed. The patients' clinical and radiographic records were reviewed. Univariate and multivariable logistic regression were used to identify independent risk factors for associated injuries and complications. Results The patients were divided into a child group (CH group, n  = 342) aged under 18 years, a young adult group (YA group, n  = 484) aged 18–60 years, and an older people group (OP group, n  = 1194) aged 60 years and over. There were significant differences among the three groups in several indexes, such as sex ratio ( χ 2  = 301.699, p  < 0.001), osteoporosis ( χ 2  = 375.463, p  < 0.001), injury time of day ( χ 2  = 114.913, p  < 0.001), injury cause ( χ 2  = 748.187, p  < 0.001), injury location ( χ 2  = 490.153, p  < 0.001), fracture side ( χ 2  = 57.000, p  < 0.001), fracture site ( χ 2  = 806.650, p  < 0.001), associated injuries ( χ 2  = 322.921, p  < 0.001), coma after injury ( χ 2  = 147.814, p  < 0.001), non‐surgery‐related complications ( χ 2  = 7.895, p  = 0.019), and surgery‐related complications ( χ 2  = 82.186, p  < 0.001). The YA group had a significantly higher percentage of patients with surgery‐related complications than the OP group. The OP group had a higher frequency of non‐surgery‐related complications than the YA group and CH group. The most common non‐surgery‐related complications were pneumonia (7.1%) in the OP group and deep venous thrombosis (6.4%) in the YA group. Multivariable logistic regression showed that young adults, high‐energy injury, outdoors, coma after injury, and fracture sites except for the proximal region were independent risk factors for associated injuries. Older age, male, and fracture site except for the proximal region were independent risk factors for complications. Conclusions Traumatic femoral fractures are mostly the result of low‐energy trauma and predominantly affect the proximal site of the femur among older people. A higher rate of shaft fractures, fractures occurring outdoors, and associated injuries were observed among young adults and children than among older people.