ArticlebioRxiv : the preprint server for biology2026
Culture Positivity Reflects Quantitative Bacterial Bioburden in Open Fractures.
Article in bioRxiv : the preprint server for biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
13 authors.
Funding
Abstract
Background: Infection following high-energy open fractures remains a major challenge. Open fractures are exposed to environmental and skin pathogens, which, along with traumatized tissue and implanted hardware, create a favorable environment for infection. 24-83% of open fractures yield positive culture results. Despite culture-positive wounds being at higher risk for infection, culture data are rarely used in clinical decision-making. Culture-positivity in open fractures is believed to indicate higher wound bioburden, but this hypothesis remains unconfirmed. This study aimed to correlate culture positivity and quantitative wound bioburden using next-generation sequencing (NGS) and to characterize patterns of bioburden and bacterial diversity amongst patients with open fracture and Fracture Related Infection. We hypothesized that higher wound bioburden would be associated with culture positivity. Methods: This secondary analysis of the Results: Culture-positive samples exhibited significantly higher bacterial read percentages (17.5 ± 26.7% vs. 0.8 ± 4.7%, Conclusions: Culture positivity in open fractures correlates strongly with increased bacterial bioburden, indicating that positive cultures may primarily reflect microbial load rather than specific pathogens. Quantitative NGS-based measures, including bacterial read proportion and BHR, may offer a biologically grounded approach to assess wound contamination and may inform infection risk. Distinct bioburden-diversity patterns suggest heterogeneous infection phenotypes that may require tailored surgical and antimicrobial strategies.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.