Abstract
The purpose of this study is to investigate the risk factors for postoperative DVT in patients with traumatic spinal fractures complicated with Spinal Cord Injury(SCI). We conducted a retrospective analysis of 110 patients with traumatic spinal fractures and SCI admitted to our hospital from March 2021 to April 2024. DVT was diagnosed usingr ultrasound.Patient history, general data, surgical data, laboratory tests, and thromboelastogram (TEG) results were collected. The patients were divided into a DVT group and a non-DVT group according to the results of color ultrasound one week after surgery. The risk factors and diagnostic value were analyzed using binary logistic regression and receiver operating characteristic (ROC) curves in both univariate and multivariate analyses. The incidence of postoperative DVT was 52.7% (58 / 110). Seven patients (6.4%) had proximal thrombus, and 51 patients had distal thrombus (46.4%). Multivariate and ROC analysis results showed that D-dimer, lower extremity, duration of bed, and MA values were independent risk factors for DVT in SCI, with D-dimer having the highest diagnostic value (AUC = 0.883). The AUC values for lower extremity, duration of bed, and MA were 0.731, 0.750, and 0.625. In conclusion, Postoperative D-dimer>5.065mg/l, lower extremity< 3, duration of bed, and MA value are independent risk factors for postoperative DVT in SCI patients, D-dimer having the highest diagnostic value.