The Effects of Intravenous Iron on Mobility in Elderly Patients Following Hip Fracture Surgery

Inclusion Criteria: 1. 65 years of age or older 2. Acute proximal femur fracture surgery 3. A hemoglobin measurement ≤6.5 mmol/L (10.5 g/dL) on day 1 to 5 postoperatively 4. Independent prefracture indoor walking ability, indoor NMS ≥ 2 5. Ability to speak and understand Danish 6. Able to provide informed consent on the participants own behalf Exclusion Criteria: 1. Known allergy to intravenous iron 2. Residing permanently at a nursing home 3. Hematological conditions with a risk of iron overload e.g. haemochromatosis, hemosiderosis, or where alternative treatments are necessary e.g. haematological malignancies 4. Other contraindication to iron treatment, e.g. severe liver cirrhosis and hepatitis 5. Severe uncontrolled infection as assessed by the responsible clinician (e.g. bacteraemia or sepsis) 6. Plasma sodium levels below 125 or above 150 mmol/L on the day of inclusion 7. Renal replacement therapy 8. Severe dementia assessed by physician 9. Recent intravenous iron injection, 4 weeks prior to surgery 10. Patient declared terminally ill 11. Pathologic Fracture