同時雙側股骨頸骨折在臨床上十分少見，大多數都發生於高能量創傷、代謝性骨骼疾病或癲癇患者。同時雙側股骨頸骨折發生於骨質疏鬆老年人的低能量創傷在歷史文獻中只有少數零星案例報告。這篇文章中我們報告一位84歲女性因跌倒造成同時雙側股骨頸移位性骨折，在接受一階段雙側半人工關節置換手術後恢復良好。在蒐集與統整文獻後，我們將在文章中探討此種傷害的受傷機轉、臨床表徵、診斷與手術治療方式。

Simultaneous bilateral femoral neck fractures comprise an uncommon condition that is associated with metabolic bone disease, high-energy trauma, and seizure disorders. Its occurrence following low-energy trauma in the geriatric population due to osteoporosis is even rarer, with only a very few case reports to date. We herein report an 84-year-old female who sustained bilateral displaced femoral neck fracture that was successfully treated with single-stage bilateral cemented bipolar hemiarthroplasty. The mechanism of injury, clinical features, diagnosis, treatment options, and post-operative osteoporosis survey in achieving the best outcome are discussed along with a review of the available literature.