Cross-sectional analysis of risk factors for surgical site infection secondary to spinal internal fixation via the posterior approach

This study provides information on SSI secondary to spinal internal fixation via the posterior approach. We found that age of >60 years, surgical duration of >3 hours, haemoglobin concentration of <80 g/L, serum albumin concentration of <30 g/L, diabetes history, and blood loss of >1,000 mL are directly correlated with SSI secondary to spinal internal fixation via the posterior approach.