Reducing Infections and Improving Healing in Complex Wounds: A Systematic Review and Meta-Analysis

Background and Objectives: Wound management in complex and traumatic injuries remains a significant clinical challenge, with a high risk of surgical site infections (SSIs) and associated complications. This systematic review and meta-analysis aim to evaluate the effectiveness of diverse interventions, including Negative Pressure Wound Therapy (NPWT), advanced dressings, irrigation techniques, antibiotic regimens, and innovative therapies, in improving wound healing outcomes and reducing infection rates. Materials and Methods: An exhaustive literature search focused on the use of NPWT, dressings, and antibiotics in the care of chronic wounds was conducted following PRISMA guidelines in the PubMed, Scopus, Web of Science, and CINAHL databases. Eligible studies included randomized controlled trials and prospective cohorts assessing interventions for wound care in trauma, surgical, and chronic wound settings. The risk of bias was assessed using the ROB2 tool. Subgroup analyses were performed to evaluate the relative risk (RR) of infections based on the intervention type. Results: The analysis included 17 studies spanning diverse geographical and clinical settings. NPWT demonstrated significant benefits in reducing infection rates compared to control groups (RR: 0.590, 95% CI: 0.458-0.760, and p < 0.001). Although advanced dressings demonstrated clinically relevant benefits as reported across the included studies, the meta-analysis did not reveal statistically significant differences (RR: 0.516, 95% CI: 0.242-1.100, and p = 0.087). Antibiotic therapies significantly reduced infections when administered within 24 h of injury, while low-pressure irrigation techniques effectively minimized bacterial contamination without causing tissue damage. Growth factors and honey-based treatments exhibited promising results in accelerating wound healing and reducing infection risks in chronic wounds. Conclusions: NPWT emerges as a highly effective intervention for infection prevention and wound healing, supported by robust evidence. Advanced dressings and innovative therapies show potential but require further research for conclusive evidence. These findings underscore the importance of tailoring wound care strategies to the clinical context and patient needs. Future research should focus on long-term outcomes and cost-effectiveness analyses to enhance the integration of these therapies into clinical practice.