The Role of Skin Microbiome Dysbiosis in Orthopedic Implant Failure and Infection

The skin microbiome, a dynamic ecosystem of commensal and pathogenic microorganisms, plays a critical role in maintaining immune homeostasis and barrier integrity at surgical sites.Yet, its disruption has been increasingly implicated in postoperative infections in orthopedic surgery.Dysbiosis, marked by an overrepresentation of opportunistic pathogens such as Staphylococcus aureus and Cutibacterium acnes, often arises from preoperative antiseptic protocols and prolonged hospital exposures.An imbalance compromises the skin's natural defense mechanisms, facilitating microbial translocation to the implant surface and promoting biofilm formation.Biofilms, composed of extracellular polymeric substances, protect embedded bacteria from immune responses and antimicrobial agents, significantly increasing the risk of chronic periprosthetic infections, and eventual implant failure.Reduced diversity of commensal species, such as Staphylococcus epidermidis, further exacerbates the risk, as these organisms typically inhibit pathogen colonization through competitive exclusion and antimicrobial peptide secretion.Emerging evidence suggests that targeted microbiome restoration strategies, including the application of topical probiotics, prebiotics, or bacteriophage therapies, may re-establish microbial equilibrium and reduce infection susceptibility.Additionally, innovations 'such as antimicrobial implant coatings and microbiome-preserving skin preparations' could enhance perioperative protocols by preventing dysbiosis-induced complications.High-resolution microbiome sequencing and predictive microbial modeling are advancing the identification of at-risk patients, enabling personalized approaches to infection prevention.Advancing understanding of the relationship between skin microbiome dysbiosis and implant-associated infections offers a paradigm shift in orthopedic surgery, emphasizing precision microbiome management to optimize surgical outcomes and implant longevity.