Acute kidney injury after hip fracture surgery among elderly patients in the ICU: incidence, risk factors and their predictive value, clinical impact—a retrospective single-center study

The incidence of AKI was high in elderly patients with hip fracture admitted to ICU after surgery. The combination of being female, receipt of intraoperative blood transfusion, postoperative albumin level and postoperative APACHE II score had good predictive value for AKI. The occurrence of AKI resulted in prolonged ICU stay.