Septic arthritis of knee joint after rooster attack: a case report

Abstract Background Septic arthritis is a serious orthopedic emergency that can lead to irreversible chondrolysis and joint destruction if not treated promptly. Although Staphylococcus aureus is the most common pathogen, atypical bacteria, especially injuries inflicted by animals, can cause severe s...

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Main Authors: Florian C. Mackes, Oskar-Marek Kwaczynski, Michael T. Hirschmann, Natalie Mengis
Format: Article
Language:English
Published: BMC 2025-07-01
Series:Journal of Medical Case Reports
Subjects:
Online Access:https://doi.org/10.1186/s13256-025-05215-0
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author Florian C. Mackes
Oskar-Marek Kwaczynski
Michael T. Hirschmann
Natalie Mengis
author_facet Florian C. Mackes
Oskar-Marek Kwaczynski
Michael T. Hirschmann
Natalie Mengis
author_sort Florian C. Mackes
collection DOAJ
description Abstract Background Septic arthritis is a serious orthopedic emergency that can lead to irreversible chondrolysis and joint destruction if not treated promptly. Although Staphylococcus aureus is the most common pathogen, atypical bacteria, especially injuries inflicted by animals, can cause severe septic arthritis. Recognizing the risk of infection from even seemingly minor injuries during initial inspection is crucial to prevent fulminant septic arthritis. Diagnostic tools such as blood cultures and synovial fluid aspiration are key to identifying the causative bacteria and guiding antibiotic therapy. Case report A Swiss, 26 years old, woman got pecked by a rooster and suffered an injury to her right knee. The patient’s symptoms, blood analysis, and joint aspiration confirmed the diagnosis of septic arthritis of the knee. Empiric antibiotic treatment with amoxicillin and clavulanic acid was started. Arthroscopic debridement and dilution was initiated. The arthroscopic view showed damage to the right medial femur condyle, which was overlooked by the medical staff during the patient’s initial examination. The patient recovered quickly and showed no more restrictions 6 weeks after trauma. Conclusion This case highlights the importance of recognizing the risk of infection, even from seemingly small injuries such as a rooster peck, to prevent fulminant septic arthritis. Further, this case demonstrates the importance of not underestimating a penetration wound by inspection only. Thorough clinical examination and wound exploration or saline load test can help to assess the depth of penetrating wounds. Nevertheless, rapid surgical and antibiotic treatment ensured a positive outcome for the patient in the case of this orthopedic emergency.
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spelling doaj-art-a0cbb5b8b5c54aa8982c8472f5ce3fd52025-08-20T04:03:01ZengBMCJournal of Medical Case Reports1752-19472025-07-011911710.1186/s13256-025-05215-0Septic arthritis of knee joint after rooster attack: a case reportFlorian C. Mackes0Oskar-Marek Kwaczynski1Michael T. Hirschmann2Natalie Mengis3Department of Orthopedic and Trauma Surgery, Kantonsspital BasellandDepartment of Orthopedic and Trauma Surgery, Kantonsspital BasellandDepartment of Orthopedic and Trauma Surgery, Kantonsspital BasellandDepartment of Orthopedic and Trauma Surgery, Kantonsspital BasellandAbstract Background Septic arthritis is a serious orthopedic emergency that can lead to irreversible chondrolysis and joint destruction if not treated promptly. Although Staphylococcus aureus is the most common pathogen, atypical bacteria, especially injuries inflicted by animals, can cause severe septic arthritis. Recognizing the risk of infection from even seemingly minor injuries during initial inspection is crucial to prevent fulminant septic arthritis. Diagnostic tools such as blood cultures and synovial fluid aspiration are key to identifying the causative bacteria and guiding antibiotic therapy. Case report A Swiss, 26 years old, woman got pecked by a rooster and suffered an injury to her right knee. The patient’s symptoms, blood analysis, and joint aspiration confirmed the diagnosis of septic arthritis of the knee. Empiric antibiotic treatment with amoxicillin and clavulanic acid was started. Arthroscopic debridement and dilution was initiated. The arthroscopic view showed damage to the right medial femur condyle, which was overlooked by the medical staff during the patient’s initial examination. The patient recovered quickly and showed no more restrictions 6 weeks after trauma. Conclusion This case highlights the importance of recognizing the risk of infection, even from seemingly small injuries such as a rooster peck, to prevent fulminant septic arthritis. Further, this case demonstrates the importance of not underestimating a penetration wound by inspection only. Thorough clinical examination and wound exploration or saline load test can help to assess the depth of penetrating wounds. Nevertheless, rapid surgical and antibiotic treatment ensured a positive outcome for the patient in the case of this orthopedic emergency.https://doi.org/10.1186/s13256-025-05215-0Septic arthritisAtypical bacteriaAnimal injuryPenetrating woundArthroscopy
spellingShingle Florian C. Mackes
Oskar-Marek Kwaczynski
Michael T. Hirschmann
Natalie Mengis
Septic arthritis of knee joint after rooster attack: a case report
Journal of Medical Case Reports
Septic arthritis
Atypical bacteria
Animal injury
Penetrating wound
Arthroscopy
title Septic arthritis of knee joint after rooster attack: a case report
title_full Septic arthritis of knee joint after rooster attack: a case report
title_fullStr Septic arthritis of knee joint after rooster attack: a case report
title_full_unstemmed Septic arthritis of knee joint after rooster attack: a case report
title_short Septic arthritis of knee joint after rooster attack: a case report
title_sort septic arthritis of knee joint after rooster attack a case report
topic Septic arthritis
Atypical bacteria
Animal injury
Penetrating wound
Arthroscopy
url https://doi.org/10.1186/s13256-025-05215-0
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AT oskarmarekkwaczynski septicarthritisofkneejointafterroosterattackacasereport
AT michaelthirschmann septicarthritisofkneejointafterroosterattackacasereport
AT nataliemengis septicarthritisofkneejointafterroosterattackacasereport