Debridement Versus Simple Scrubbing of External Fixator Pin Sites

Area of Science:

• Orthopedic Surgery
• Infectious Disease Prevention

Background:

• Surgical site infections (SSIs) are a risk following external fixation.
• Irrigation and debridement (I&D) of pin sites is a technique used to prevent SSIs.
• The efficacy of I&D compared to simple scrubbing for preventing deep SSIs is unclear.

Purpose of the Study:

• To compare the incidence of deep SSIs after I&D of external fixator pin sites versus simple scrubbing.
• To evaluate the effectiveness of pin site preparation techniques in preventing infections.

Main Methods:

• Retrospective cohort study at a level I trauma center.
• Included 313 patients undergoing external fixation followed by open reduction and internal fixation (ORIF).
• Compared outcomes between an I&D group (179 patients) and a simple scrubbing group (155 patients).

Main Results:

• Deep SSIs occurred in 10.0% of the I&D cohort and 5.2% of the simple scrubbing cohort.
• No statistically significant difference in deep infection rates was found between the two groups (p = 0.10).
• Effect size (Cohen's d = 0.18) was not meaningful.

Conclusions:

• I&D of external fixator pin sites did not lead to a significant reduction in deep SSIs compared to simple scrubbing.
• The utility of I&D in terms of time and resources versus infection prevention benefits warrants further consideration.
• Current evidence does not support I&D as a superior method for preventing deep SSIs in this context.