Abstract
Aim
This study aimed to evaluate the impact on length of hospital stay from dedicated infectious diseases input for orthopaedic infection patients compared to sporadic infection specialist input.
Method
We conducted an observational cohort study of 157 adults with orthopaedic infections at a teaching hospital in the UK. The orthopaedic infections included were: osteomyelitis, septic arthritis, infected metalwork and prosthetic joint infections, and adults were aged 18 years or more. Prior to August 2016, advice on orthopaedic infection patients was adhoc with input principally from the on-call infectious diseases registrar and phone calls to microbiology whereas after August 2016 these patients received regular input from dedicated infectious diseases doctor(s). The dedicated input involved bedside reviews, medical management, correct antimicrobial prescribing, managing adverse drug reactions, increased use of outpatient parenteral antimicrobial therapy (OPAT) services especially self-administration of intravenous antibiotics and shared decision-making for treatment failure, whilst remaining under orthopaedic team care. Orthopaedic patients operated on for management of their infection between 29/8/16 and 15/3/17 were prospectively identified and orthopaedic operation records were used to retrospectively identified patients between 29/8/15 and 15/3/16. The length of stay was compared between the 2 groups.
Results
There were 83 patients in the dedicated infectious diseases input group (dedicated group) and 74 patients in the sporadic infection specialist input group (sporadic group). The dedicated group were significantly younger: median 58 years versus 69years (p<0.001), and there was a trend to significant differences in the breakdown of diagnosis (p=0.06), but no significant sex difference.
The median length of stay for the sporadic group was 20 days (interquartile range (IQR) 13–29 days) compared to 14 days (IQR 9–27 days) for the dedicated group, with a trend to significance (p=0.06) but no effect from age or diagnosis. Our hospital values one day in hospital at £864, therefore over the 6.5 months trial period of the dedicated infectious diseases input there was a cost saving of £430,272 (£864 × 6 days × 83 patients).
Conclusions
Dedicated infectious diseases input would be expected to improve patient care but by additionally reducing median length of stay for orthopaedic infection patients, this encourages investment to achieve both. In this era of increased scrutiny of health budgets demonstrating value for money, not just improved quality of patient care, is essential.
