Nutrition in Hip Fracture Units: Contemporary Practices in Preoperative Supplementation

Patients with hip fractures pose a significant burden on health services. Malnutrition, frailty, and cognitive impairment are common, and key to addressing the needs of this vulnerable patient group is nutrition optimization, including reduction in arbitrary nil by mouth (NBM) perioperative regimens. In order to understand current practices, we characterize preoperative nutrition in a regional hip fracture population.

Prospective data were submitted to the National Hip Fracture Database by 6 hospitals in the north east of England over a 6-month period. Patients were stratified by preoperative nutritional intake, frailty, and cognitive function.

In all, 24.2% (n = 205) patients received no oral intake at all preoperatively; 15.3% of NBM patients were at risk of malnutrition; and 6.9% were malnourished at the time of assessment. Median time to surgery for NBM patients was 16.75 hours, and 6.34% of patients were fasted with no intake for >36 hours. In all, 6.5% (n = 44) of patients with an Abbreviated Mental Test Score (AMTS) of 8 or above were deemed to be at risk of malnutrition at admission, compared to 11.3% (n = 50) of patients with an AMTS of 7 or below. The NBM patients had similar mean Rockwood (4.97) and AMTS (6.51) scores to patients given oral nutrition.

We have demonstrated contemporary preoperative nutritional practices in the management of over 800 hip fracture patients. Contrary to perception, nutrition practices vary little when stratified for age, cognition frailty, or comorbid burden. We have identified widespread prolonged NBM fasting and undersupplementation in patients sustaining hip fracture across a region. This work suggests a need to focus less on patient factors and more on systematic practices.