Research
Print page Print page
Switch language
The Capital Region of Denmark - a part of Copenhagen University Hospital
Published

Analysis of proximal bone margins in diabetic foot osteomyelitis by conventional culture, DNA sequencing and microscopy

Research output: Contribution to journalJournal articleResearchpeer-review

DOI

  1. Bacteremia and urogenital infection with Actinomyces urogenitalis following prolonged urinary retention

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Two cases of tick-borne transmitted tularemia on Southern Zealand, Denmark

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. L-serine: a neglected amino acid with a potential therapeutic role in diabetes

    Research output: Contribution to journalReviewResearchpeer-review

  4. Erythrocytes restrict microvesicle-induced production of reactive oxygen species by polymorphonuclear leukocytes

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. The impact of concurrent HIV and type II diabetes on immune maturation, immune regulation and immune activation

    Research output: Contribution to journalJournal articleResearchpeer-review

  1. Minimum information guideline for spectrofotometric and fluorometric methods to assess biofilm formation in microplates

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Is pseudarthrosis after spinal instrumentation caused by a chronic infection?

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. An Equine Wound Model to Study Effects of Bacterial Aggregates on Wound Healing

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Antimicrobial Tolerance and Metabolic Adaptations in Microbial Biofilms

    Research output: Contribution to journalReviewResearchpeer-review

  • Matthew Malone
  • Blaine G Fritz
  • Karen Vickery
  • Saskia Schwarzer
  • Varun Sharma
  • Nathan Biggs
  • Michael Radzieta
  • Thomas T Jeffries
  • Hugh G Dickson
  • Slade O Jensen
  • Thomas Bjarnsholt
View graph of relations

Multiple approaches were employed to detect pathogens from bone margins associated with Diabetic Foot Osteomyelitis (DFO). Intra-operative bone specimens of 14 consecutive subjects with suspected DFO were collected over a six-month study period from Liverpool Hospital. Infected bone and a proximal bone margins presumed to be 'clean/non-infected' were collected. Bone material was subjected to conventional culture, DNA sequencing and microscopy. In total, eight of 14 (57%) proximal bone margins had no growth by conventional culture but were identified in all proximal bone specimens by DNA sequencing. Proximal margins had lower median total microbial counts than infected specimens, but these differences were not statistically significant. Pathogens identified by sequencing in infected specimens were identified in proximal margins and the microbiomes were similar (ANOSIM = 0.02, p = 0.59). Using a combination of SEM and/or PNA-FISH, we visualized the presence of microorganisms in infected bone specimens and their corresponding proximal margins of seven patients (50%) with DFO. We identify that bacteria can still reside in what seems to be proximal 'clean' margins. The significance and implications of clinical outcomes requires further analysis from a larger sample size that incorporates differences in surgical and post-operative approaches, correlating any outcomes back to culture-sequence findings.

Original languageEnglish
JournalAPMIS - Journal of Pathology, Microbiology and Immunology
Volume127
Issue number10
Pages (from-to)660-670
Number of pages11
ISSN0903-4641
DOIs
Publication statusPublished - Oct 2019

    Research areas

  • Bacteria/classification, Bacteriological Techniques/methods, Bone and Bones/microbiology, Diabetic Foot/microbiology, Histocytochemistry/methods, Humans, In Situ Hybridization, Fluorescence, Metagenomics/methods, Microscopy, Electron, Scanning, Osteomyelitis/microbiology, Sequence Analysis, DNA

ID: 58994718