Clostridium difficile in patients undergoing primary hip and knee replacement.

Area of Science:

• Orthopedic Surgery
• Infectious Diseases
• Pharmacology

Background:

• Antibiotic prophylaxis is standard in joint replacement surgery.
• Prophylaxis may increase the risk of Clostridium difficile-associated disease (CDAD).
• The incidence of CDAD following cefuroxime-based prophylaxis in joint replacement is not well-established.

Purpose of the Study:

• To determine the incidence of CDAD after joint replacement surgery using a cefuroxime-based prophylaxis regimen.
• To compare patients who developed CDAD with a control group without CDAD.
• To evaluate risk factors associated with CDAD in this patient population.

Main Methods:

• Retrospective cohort study comparing patients who developed CDAD with a control group.
• Analysis of CDAD incidence based on cefuroxime-based antibiotic prophylaxis.
• Statistical comparison of CDAD rates between groups receiving additional antibiotics or gastroprotective agents.

Main Results:

• The incidence of CDAD was 1.7 per 1000 primary joint replacements.
• Patients receiving additional antibiotics showed a significantly higher incidence of CDAD (p = 0.047).
• No significant difference in CDAD incidence was observed regarding the use of gastroprotective agents (p = 0.703).

Conclusions:

• Cefuroxime-based antibiotic prophylaxis is safe for patients undergoing primary elective joint replacement.
• The incidence of CDAD is low with this regimen.
• Caution is advised regarding the use of additional antibiotics concurrently with prophylaxis due to increased CDAD risk.