Jang WY, et al. - Between January 2011 and January 2015, 248 subjects were retrospectively analyzed to study the incidence and correlated risk factors for acute kidney injury in subjects with a femoral neck fracture. They observed 17.7% of the incidence of acute kidney injury. Diabetes mellitus, pre-existing renal disease, preoperative blood urea nitrogen (BUN), preoperative estimated glomerular filtration rate (eGFR), preoperative hemoglobin (Hb) level, type of operation, postoperative creatinine level and intraoperative hypotension were the risk factors for acute kidney injury. They reported intraoperative hypotension, the only independent risk factor for acute kidney injury, after controlling for confounding variables.