Abstract
ObjectivePostoperative ileus (PI) is a common complication following posterior thoraco-lumbar spinal fusion surgery. It usually slows patient’s recovery and increases postoperative morbidity. However, the risk factors associated with PI in patients undergoing posterior thoraco-lumbar spinal fusion surgery are still unclear. The purpose of this study is to investigate the potential risk factors for PI in those patients. Patients and methodsA prospective study was conducted and 426 patients received posterior thoraco-lumbar spinal fusion surgery between March 2017 and February 2018 were included in this study. The associations between different clinical factors and PI were analyzed. A logistic regression analysis was performed to detect independent risk factors for PI. The cut-off value, sensitivity and specificity of these independent factors were calculated by receiver operating characteristic (ROC) curve. ResultsIn this study, 8.2% (35/426) of these patients were identified with PI. The average length of postoperative hospital stay was 12.54 ± 6.06 days in patients with PI compared with 8.91 ± 3.81 days in patients without PI (P = 0.001). These results indicated that surgical duration, PLIF approach, blood loss and length of postoperative diet restriction were potential risk factors for PI in patients with thoraco-lumbar spinal fusion surgery. The cut-off values of surgical duration, blood loss and length of postoperative diet restriction were 4.375 h, 750 ml and 9.5 h, respectively. Combination of surgical duration, PLIF approach, blood loss and length of postoperative diet restriction has the highest predictive value for PI (AUC = 0.910, P < 0.001). ConclusionBased on the study, surgical duration, PLIF approach, blood loss and length of postoperative diet restriction were the independent risk factors for PI in patients with posterior thoraco-lumbar spinal fusion surgery. Combined those factors has the highest risk for developing PI.
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