title: Antibiotic-coated pins for prevention of pin-tract infection: a rabbit study.
abstract: PURPOSE. To evaluate the efficacy of antibiotic-coated pins for prevention of pin tract infection in a rabbit model. METHODS. 10 rabbits were divided into 2 groups. A unilateral external fixator was applied to the tibia with 4 self-taping 1.8-mm pins. In the test group, pins were coated with hydroxyapatite and antibiotic. In the control group, pins were not coated. All pins were then placed in Staphylococcus aureus- containing media. At postoperative day 5, all 40 pin sites were subcutaneously inoculated with S aureus. The sites were clinically examined for signs of pin tract infection. Nine days later, a piece of soft tissue around the pin site was harvested for microbiologic examination. RESULTS. In the test group, all except one pin sites appeared clean and without clinical infection, and the culture media remained clear. In the control group, all pin sites showed evidence of clinical infection and yielded positive cultures, and the culture media became dark indicating growth of S aureus. CONCLUSION. Antibiotic-coated pins were effective in preventing pin tract infection.
authors.affiliation: Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
authors.forename: A R
authors.initials: AR
authors.lastname: Rahimnia
authors.forename: A
authors.initials: A
authors.lastname: Abbaspour
authors.forename: Yadollah
authors.initials: Y
authors.lastname: Rezaei
authors.forename: A
authors.initials: A
authors.lastname: Khodadadi
authors.forename: A M
authors.initials: AM
authors.lastname: Alizadeh
authors.forename: M A
authors.initials: MA
authors.lastname: Mohagheghi
authors.forename: H
authors.initials: H
authors.lastname: Semeyari
authors.forename: A A
authors.initials: AA
authors.lastname: Imani Fooladi
authors.forename: M
authors.initials: M
authors.lastname: Izadi
authors.forename: P
authors.initials: P
authors.lastname: Keshavarz
authors.forename: N
authors.initials: N
authors.lastname: Yasui
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000008:administration & dosage*; D001858:Bone Nails / Q000382:microbiology*; D020099:Coated Materials, Biocompatible; D004195:Disease Models, Animal; D017886:Durapatite / Q000008:administration & dosage; D008297:Male; D011817:Rabbits; D013203:Staphylococcal Infections / Q000517:prevention & control*; D013211:Staphylococcus aureus; D013530:Surgical Wound Infection / Q000382:microbiology / Q000517:prevention & control*
chemical_list: D000900:Anti-Bacterial Agents; D020099:Coated Materials, Biocompatible; D017886:Durapatite
keywords: anti-bacterial agents; external fixators; surgical wound infection