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Updated: Aug 15, 2026

A Method to Test the Efficacy of Handwashing for the Removal of Emerging Infectious Pathogens
Published on: June 7, 2017
Evaluation of antiseptic use in plastic and hand surgery
Abdulmuttalip Keser1, Murat Bozkurt, Omer Faruk Taner
1Department of Plastic and Reconstructive Surgery, Emergency Care and Traumatology Hospital, Balgat, Ankara, Turkey.
Abstract:
Despite the growing complexity of plastic surgical cases, antiseptics available for preoperative preparation do not always prove effective. In addition to the varied sites of plastic surgery, there is a likelihood of considerable contamination with microorganisms since surgical gloves are frequently punctured during surgical procedures. With an aim to find a solution to all of these problems, a study was conducted in 2 stages. First, antimicrobial effects on the normal flora of hands of 4 different surgical handwashing procedures, which consist of scrubbing with 7.5% povidone-iodine (PI) scrub by using the sponge/brush, 7.5% PI scrub alone, 0.5% benzalkonium chloride (BC) solution, and 0.1% BC solution, were compared. In the second stage, bacteriological samplings were obtained from fingertips of the operating team during the surgical procedure. At the end of the study, the following results were obtained: (1) scrubbing with 7.5% PI detergent by using a scrub sponge was significantly more effective than without using a scrub sponge (P < 0.05). (2) There was no statistically significant difference in scrubbing when povidone-iodine detergent and 0.5% benzalkonium chloride solution (P > 0.05) were compared. (3) At the end of the surgery lasting 1-5 hours, hands were found to be cleaner than previously washed hands for preoperative preparation, which was considered a consequence of the sustained effect of PI. (4) There was a statistically significant difference between the cultures taken from the gloves at the end of the operation and from the hands after the gloves were taken off (P < 0.01). At the end of the operation, the gloves themselves were found to be extremely dirtier than the hands inside them. As a conclusion, bacterial escape due to glove perforation occurs from outside of the glove to the inside, contrary to the generally accepted concept.
Insights
Surgical hand scrubs with 7.5% povidone-iodine and a sponge are most effective. Post-surgery, hands remain cleaner than pre-surgery due to povidone-iodine
Area of Science:
- Plastic Surgery
- Infectious Disease Control
- Microbiology
Background:
- Preoperative antiseptic efficacy is crucial in complex plastic surgery.
- Surgical glove perforations increase contamination risk.
- Existing antiseptics may not always be effective.
Purpose of the Study:
- Compare antimicrobial effects of four surgical handwashing procedures.
- Evaluate bacterial contamination during surgery.
- Investigate bacterial transmission through glove perforations.
Main Methods:
- Stage 1: Compared antimicrobial effects of 7.5% povidone-iodine (PI) scrub with/without sponge, and 0.5%/0.1% benzalkonium chloride (BC) on hand flora.
- Stage 2: Obtained bacteriological samples from fingertips during surgery.
- Analyzed bacterial cultures from hands and gloves post-procedure.
Main Results:
- 7.5% PI scrub with a sponge was significantly more effective than without (P < 0.05).
- No significant difference between 7.5% PI and 0.5% BC (P > 0.05).
- Hands remained cleaner post-surgery, indicating a sustained PI effect.
- Gloves were significantly dirtier than hands inside them post-operation (P < 0.01).
Conclusions:
- Surgical hand antisepsis with 7.5% PI and a sponge is highly effective.
- Povidone-iodine offers sustained antimicrobial activity during prolonged procedures.
- Bacterial contamination during surgery primarily transfers from outside to inside gloves via perforations, challenging existing assumptions.
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