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Updated: May 19, 2026
A Mouse Distraction Osteogenesis Model
Published on: November 14, 2018
Rates of pin site infection during distraction osteogenesis based on monthly observations: a pilot study
Aik Saw1, Yeok Pin Chua, Golam Hossain
1Department of Orthopaedic Surgery, University Malaya Medical Center, Kuala Lumpur, Malaysia. sawaik@hotmail.com
Purpose:
To assess the monthly rates of infection of individual pin sites in 7 patients during distraction osteogenesis.
Methods:
Five men and 2 women aged 15 to 35 (mean, 23) years underwent distraction osteogenesis for 8 tibias using the Ilizarov ring external fixator or Taylor Spatial Frame. Patients were taught to perform standard daily pin site care at home, and were evaluated monthly for pin site infection by a single observer using a standardised grading system.
Results:
Of 1334 observations made on 110 pin/wire sites, there were 83 (6%) pin site infections; 44 (3%) were grade 1 and 39 (3%) were grade 2. The risk of infection was higher at half pin than wire sites. The highest rates occurred in the distal segment.
Conclusion:
Monthly evaluation of individual pin sites enables comparison between studies.
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