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Updated: Jun 5, 2026

A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment
Published on: May 25, 2017
Changing prophylactic antibiotic protocol for reducing Clostridium difficile-associated diarrhoeal infections
Waleed Al-Obaydi1, Chris D Smith, Pedro Foguet
1Department of Orthopaedics, University Hospital Coventry and Warwickshire, Coventry, UK.
Changing antibiotic protocols in orthopaedic surgery can significantly reduce Clostridium difficile-associated diarrhoeal infections. This adjustment in prophylaxis did not increase the risk of deep wound infections in patients.
Area of Science:
- Infectious Diseases
- Surgical Prophylaxis
- Microbiology
Background:
- Clostridium difficile-associated diarrhoeal infections (CDADIs) are a significant concern in healthcare settings.
- Orthopaedic surgeries often involve prophylactic antibiotic use, which can influence CDADIs.
- Previous protocols may have contributed to the incidence of CDADIs.
Purpose of the Study:
- To evaluate the impact of a modified prophylactic antibiotic protocol on CDADIs in orthopaedic patients.
- To determine if changes in antibiotic prophylaxis affect the rates of deep wound infections.
Main Methods:
- A retrospective review of 1331 orthopaedic surgery patients was conducted.
- Antibiotic prophylaxis protocols before and after August 2007 were compared.
- Rates of CDADIs and deep wound infections were analyzed.
Main Results:
- The new antibiotic protocol led to a significant decrease in CDADIs from 4% to 1% (p=0.004).
- CDADIs particularly reduced in trauma patients (8% to 3%, p=0.02).
- The modified protocol did not significantly alter the incidence of deep wound infections.
Conclusions:
- Adjusting prophylactic antibiotic regimens can effectively lower CDADI rates in orthopaedic surgery.
- This strategy offers a method to reduce CDADIs without compromising surgical site infection prevention.
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