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General Orthopaedics

EARLY INFECTION AFTER HIP FRACTURE SURGERY: RISK FACTORS, FINANCIAL COSTS AND MORTALITY

British Orthopaedic Association (BOA) 2007



Abstract

The aim of this study was to investigate the risk factors, financial costs and outcomes associated with infection after hip fracture surgery.

Prospective hip fracture data from the University Hospital, Nottingham, was analysed, assessing patients with either deep or superficial wound infections admitted over a five year period.

3605 patients underwent hip fracture surgery. 2.3% of these patients developed a wound infection of which 1.2% were deep wound infections. 75% of infections were due to Staphylococcus aureus and 50% of all infections were caused by methicillin-resistant Staphylococcus aureus.

No statistically significant risk factors for the development of infection were identified in this study.

Length of stay, cost of treatment and pre-discharge mortality were all increased with deep infection. Deep wound infection increased the average length of stay from 28 days to 100 days. This quadrupled the ward costs. The mean overall hospital cost of treating a hip fracture complicated by deep wound infection was £34903 compared to £8979 fro those who did not develop infection. Pre-discharge mortality increased from 24.2% in the control group to 30% in the infected group (p<0.006).

MRSA significantly increased costs, LOS, and pre-discharge mortality compared with non-MRSA infection.

These results show the huge impact that infection after hip fracture surgery has both on mortality and hospital costs.