European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2026
Elevated risk of wound and systemic complications in MRSA-colonized patients undergoing lower extremity orthopedic trauma surgery.
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Areti Aruni S, Hafeez Harris, Sangineni Pradyun V, Argao Lorenzo, Deveza Lorenzo, Dawson Jack
Аннотация
PURPOSE: Preoperative colonization with methicillin-resistant Staphylococcus aureus (MRSA) is a known risk factor for adverse outcomes in arthroplasty but remains under-investigated in orthopedic trauma. This study evaluates the impact of preoperative MRSA colonization on postoperative complication rates in patients undergoing lower extremity orthopedic trauma surgery.
METHODS: We conducted a retrospective cohort study using the TriNetX Research Network, identifying adult patients who underwent lower extremity orthopedic trauma procedures over a 20-year period. Patients with a documented MRSA diagnosis within three months before surgery were matched 1:1 to MRSA-negative controls based on demographics and comorbidities. Postoperative outcomes were assessed within three months of surgery, including surgical site infections (SSIs), wound dehiscence, organ dysfunction, thromboembolic events, and healthcare utilization. Odds ratios (ORs) and p-values were calculated, with statistical significance set at p < 0.05.
RESULTS: A total of 1,868 MRSA+ and 629,342 control patients were identified. After matching, MRSA+ patients remained at significantly increased risk for wound dehiscence (OR = 1.80, p = 0.005), pneumonia (OR = 2.33, p < 0.001), sepsis (OR = 3.71, p < 0.001), acute renal failure (OR = 1.45, p < 0.001), blood transfusion (OR = 1.74, p < 0.001), deep vein thrombosis (OR = 2.29, p < 0.001), and pulmonary embolism (OR = 2.80, p < 0.001). No significant differences in SSIs were observed after matching.
CONCLUSION: Preoperative MRSA colonization is associated with increased risks of wound dehiscence, pneumonia, sepsis, thromboembolic events, blood transfusions, and acute renal failure in orthopedic trauma patients. Preoperative MRSA screening may serve as a risk-stratification tool, enabling surgeons to anticipate systemic complications and optimize management. Where feasible, screening with targeted decolonization or prophylactic strategies may mitigate risk.
METHODS: We conducted a retrospective cohort study using the TriNetX Research Network, identifying adult patients who underwent lower extremity orthopedic trauma procedures over a 20-year period. Patients with a documented MRSA diagnosis within three months before surgery were matched 1:1 to MRSA-negative controls based on demographics and comorbidities. Postoperative outcomes were assessed within three months of surgery, including surgical site infections (SSIs), wound dehiscence, organ dysfunction, thromboembolic events, and healthcare utilization. Odds ratios (ORs) and p-values were calculated, with statistical significance set at p < 0.05.
RESULTS: A total of 1,868 MRSA+ and 629,342 control patients were identified. After matching, MRSA+ patients remained at significantly increased risk for wound dehiscence (OR = 1.80, p = 0.005), pneumonia (OR = 2.33, p < 0.001), sepsis (OR = 3.71, p < 0.001), acute renal failure (OR = 1.45, p < 0.001), blood transfusion (OR = 1.74, p < 0.001), deep vein thrombosis (OR = 2.29, p < 0.001), and pulmonary embolism (OR = 2.80, p < 0.001). No significant differences in SSIs were observed after matching.
CONCLUSION: Preoperative MRSA colonization is associated with increased risks of wound dehiscence, pneumonia, sepsis, thromboembolic events, blood transfusions, and acute renal failure in orthopedic trauma patients. Preoperative MRSA screening may serve as a risk-stratification tool, enabling surgeons to anticipate systemic complications and optimize management. Where feasible, screening with targeted decolonization or prophylactic strategies may mitigate risk.