Diluted povidone-iodine versus saline for dressing metal-skin interfaces in external fixation.

C K Chan, A Saw, M K Kwan, R Karina

Journal: Journal of orthopaedic surgery (Hong Kong) 2009;17(1):19-22

PMID: 19398787

Abstract

PURPOSE

To compare infection rates associated with 2 dressing solutions for metal-skin interfaces.

METHODS

60 patients who underwent distraction osteogenesis with external fixators were equally randomised into 2 dressing solution groups (diluted povidone-iodine vs. saline). Fixations were attained using either rigid stainless steel 5-mm diameter half pins or smooth stainless steel 1.8-mm diameter wires. Half-pin fixation had one metal-skin interface, whereas wire fixation had 2 interfaces. Patients were followed up every 2 weeks for 6 months.

RESULTS

Of all 788 metal-skin interfaces, 143 (18%) were infected: 72 (19%) of 371 in the diluted povidone-iodine group and 71 (17%) of 417 in the saline group. Dressing solution and patient age did not significantly affect infection rates. Half-pin fixation was more likely to become infected than wire fixation (25% vs 15%).

CONCLUSION

Saline is as effective as diluted povidone-iodine as a dressing solution for metal-skin interfaces of external fixators. Saline is recommended in view of its easy availability and lower costs.

Address: Department of Orthopaedic Surgery, Hospital Kuching, Malaysia.

DOI: 10.1177/230949900901700105

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MeSH Terms: Adolescent, Adult, Age Factors, Aged, Anti-Infective Agents, Local, Bandages, Child, Child, Preschool, External Fixators, Female, Follow-Up Studies, Humans, Infant, Male, Middle Aged, Osteogenesis, Distraction, Povidone-Iodine, Surgical Wound Infection, Young Adult