• Qiang Li, Zongxue Yu, Xiao Chen, and Wenli Zhang.
• Qiang Li, Vascular Surgery Department, Qingdao Hiser Medical Group, Qingdao, Shandong Province, 266033, China.
• Pak J Med Sci. 2021 Jan 1; 37 (1): 239-243.

ObjectiveTo identify the risk factors of deep vein thrombosis (DVT) of lower limb in patients undergoing lumbar fusion surgeries, to provide a better understanding of DVT and take prophylactic measures.MethodsThis study was carried out in our hospital between January 2016 and February 2020, patients undergoing lumbar fusion surgeries were included and divided into DVT group and non-DVT group, and the medical data including basic demographics, clinical characteristics, operative data, and routine biochemical parameters were collected and analyzed.ResultsIn the current study, 390 cases were included, 48 cases were enrolled in DVT group and 342 in non-DVT group. The incidence of DVT was 12.3%. There were significant differences in age, hyperlipemia, hypertension, occupation type, D-dimer level, hospital stay, and postoperative exercises (p<0.05), but no significant differences in gender, smoking status, drinking status, coronary heart disease, diabetes mellitus, fused segments, and operation time (p>0.05) between the two groups. In multivariate analysis, age>50 years, hypertension, D-dimer>500ug/L were independent risk factors, while postoperative exercises were protective factor for DVT.ConclusionThose patients undergoing lumbar fusion surgeries should take more prophylactic measures including postoperative exercises if they were elderly, or hypertensive, or have high D-dimer level, in order to decrease the incidence of DVT.Copyright: © Pakistan Journal of Medical Sciences.

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