Abstract
BACKGROUND: There is a dearth of data on surgical site infections (SSIs) complicating internal fixation of fractures from Nigeria. AIMS: To determine the incidence and risk factors for SSIs following internal fixation of fracture. METHODS: A cohort of 90 patients with long bone fractures that were stabilized internally with metallic devices was studied prospectively and retrospectively. RESULTS: The incidence of SSI was 12%. The isolated organisms were Staphylococcus aureus in four patients, Pseudomonas spp. in three, and Escherichia coli in one patient. Diabetes mellitus and perioperative transfusion with allogeneic blood were not predictive of SSI. Duration of operation longer than 120 minutes was a strong predictor (OR 2.25, 95% CL 0.48-10.16). Other risk factors were male sex (OR 2.01, 95% CL 0.44-10.45), injury-operation interval less than six months (OR 2.00, 95% CL 0.22-46.08), fracture fixation with plates and screws (OR 1.51, 95% CL 0.36-6.40), white blood cell count (WBC) less than 5,000 per cumm (OR 1.50, 95% CL 0.15-16.37), preoperative urinary catheterization (OR 1.48, 95% CL 0.00-16.19), and postoperative urinary catheterization (OR 1.24, 95% CL 0.29-5.00). CONCLUSION: The incidence of SSI after internal fixation of long bone fractures in our centers is 12%, and this is within the previously reported range. Use of plates and screws, WBC less than 5,000 per cumm, and perioperative urinary catheterization are important risk factors.
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