Kosin Medical Journal

Review article

Clinical challenges and advancements in diagnosing Staphylococcus aureus-associated musculoskeletal infections: Irvin Oh; Kosin Med J. 2024;39(1):5-17. Published online March 22, 2024; DOI: https://doi.org/10.7180/kmj.24.104

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Abstract PDF PubReader ePub: Musculoskeletal infections (MSKI) present a significant health challenge, with a rising incidence linked to the aging population and advancements in orthopedic surgical care. Staphylococcus aureus is the most prevalent pathogen associated with orthopedic infections. The conventional culture method for identification of pathogen frequently lacks accuracy and is challenged by false-positive or false-negative results. Inflammatory markers such as the erythrocyte sedimentation rate and C-reactive protein are not site-specific or accurate, as they can be confounded by other medical conditions. Identifying the dominant pathogen and monitoring treatment response following surgical debridement and antibiotics therapy continues to pose challenges. Understanding the pathogenesis of MSKI is crucial for the development of innovative diagnostics and alternative therapeutics. S. aureus immune evasion stands out as a key component of the pathogenic mechanism, complicating clinical decisions. Other unique mechanisms such as biofilm and abscess formation, as well as osteocyte-lacuno canalicular network invasion, underscore the need for aggressive debridement and the complete removal of infected implants and bone tissues. Ongoing efforts focus on exploring and developing innovative diagnostics, such as serum immunoassays, next-generation sequencing of infected tissue, transcriptomics of peripheral blood mononuclear cells, and serum proteomics. These endeavors offer promising avenues for improved diagnostics, medical management, and innovative therapeutics for MSKI.

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