ArticleEuropean journal of trauma and emergency surgery : official publication of the European Trauma Society2022
Standardized porcine unilateral femoral nailing is associated with changes in PMN activation status, rather than aberrant systemic PMN prevalence.
Article in European journal of trauma and emergency surgery : official publication of the European Trauma Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.
- Neutrophil cell surface receptor dynamics following trauma: a systematic review.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025Pooled it
- Combined inhibition of the complement component C5 and the TLR-coreceptor CD14 alters the posttraumatic response in fracture hematoma in a porcine polytrauma model.Innovative surgical sciences · 2026Article
- Defining the early systemic neutrophil signature after severe trauma: decreased CD10/CD16 levels on admission precedes metabolic dysregulation.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025Article
- [Current regulations in the Animal Welfare Act and the significance for animal research].Orthopadie (Heidelberg, Germany) · 2024Review
- Focus on biomarkers, confounders and new therapeutic approaches in trauma.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022Article
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Authors and funding
12 authors at 7 institutions in 2 countries.
Funding
Abstract
purposeIntramedullary nailing (IMN) of fractures is associated with increased rates of inflammatory complications. The pathological mechanism underlying this phenomenon is unclear. However, polymorphonuclear granulocytes (PMNs) seem to play an important role. We hypothesized that a femur fracture and standardized IMN in pigs is associated with altered appearance of PMNs in circulation and enhanced activation status of these cells.
methodsA porcine model including a femur fracture and IMN was utilized. Animals were randomized for control [anesthesia + mechanical ventilation only (A/MV)] and intervention [A/MV and unilateral femur fracture (FF) + IMN] conditions. PMN numbers and responsiveness, integrin (CD11b), L-selectin (CD62L) and Fcγ-receptor (CD16 and CD32)-expression levels were measured by flowcytometry of blood samples. Animals were observed for 72 h.
resultsCirculatory PMN numbers did not differ between groups. Early PMN-responsiveness was retained after insult. PMN-CD11b expression increased significantly upon insult and peaked after 24 h, whereas CD11b in control animals remained unaltered (P = 0.016). PMN-CD16 expression levels in the FF + IMN-group rose gradually over time and were significantly higher compared with control animals, after 48 h (P = 0.016) and 72 h (P = 0.032). PMN-CD62L and CD32 expression did not differ significantly between conditions.
conclusionThis study reveals that a femur fracture and subsequent IMN in a controlled setting in pigs is associated with enhanced activation status of circulatory PMNs, preserved PMN-responsiveness and unaltered circulatory PMN-presence. Indicating that monotrauma plus IMN is a specific and substantial stimulus for the cellular immune system. Early alterations of circulatory PMN receptor expression dynamics may be predictive for the intensity of the post traumatic response.
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