Risk factors and predictive models for postoperative surgical site infection in patients with massive hemorrhage.

Zheng, Wei-Chao; Bai, Yang; Ge, Jian-Lei; Lv, Lei-Shuai; Zhao, Bin; Wang, Hong-Li; Zhang, Li-Min · J Orthop · 2025

retrospective_cohort · Level III

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Abstract

This study aimed to identify risk factors associated with postoperative surgical site infection (SSI) in patients experiencing massive hemorrhage and develop a predictive model. A retrospective analysis of 121 orthopedic surgery patients and experienced massive hemorrhage was conducted. According to postoperative SSI occurrence, the patients were divided into two groups: the infection group (n = 12) and the non-infection group (n = 109). Clinical data were collected, and a predictive model was developed using logistic regression analysis in patients with massive hemorrhage. Independent risk factors for postoperative SSI included ASA grade, urine volume, and type 2 diabetes. An area under the curve for the prediction of postoperative SSI based on the Receiver Operating Characteristic (ROC) curve for the risk score was 0.916. Patients with a urine volume of ≥3.49 ml/kg/h, higher ASA grade, and type 2 diabetes are at an increased risk of developing postoperative SSI after experiencing massive hemorrhage. Level III.