Abstract Objective To study the correlation between the incidence of total deep vein thrombosis(DVT)and symptomatic DVT after total knee arthroplasty(TKA)and each component and quantity of the metabolic syndrome(MS).Methods 618 patients who underwent initial TKA in our department from January 2020 to December 2021 were retrospectively analyzed.MS was diagnosed according to the criteria of the Diabetes Branch of Chinese Medical Association.There were 166 male patients aged 50~81 years,with an average age of (66.94±6.90)years and 452 female patients aged 52~81 years,with an average age of (65.90±7.57)years.All patients were also divided into five groups(0MS factor group,1MS factor group,2MS factor group,3MS factor group,and 4MS factor group)based on the number of MS components achieved.All subjects underwent preoperative bilateral lower extremity vascular ultrasound to rule out preoperative lower extremity DVT,and postoperative bilateral lower extremity vascular ultrasound to screen for DVT.Clinical signs were also examined and symptomatic DVT events after TKA were recorded.Univariate and multifactorial logistic regression analyses were used to clarify the correlation between MS and its components and quantities with the incidence of total and symptomatic postoperative DVT.Results 618 patients undergoing TKA were included in this study.260 patients(42.10%)had DVT after surgeries and 49 patients(7.93%) had symptomatic DVT.In total knee arthroplasty,dyslipidemia was related with both the incidence rate of total DVT [95% CI(1.492~3.310),P<0.001] and symptomatic DVT [95% CI(2.192~15.232),P<0.001].Body mass index(BMI) ≥25 kg/m2 was related with total DVT [95% CI(0.371~0.801),P= 0.027] was related with the incidence rate of total DVT [95%CI(0.623~4.777),P=0.074]and metabolic syndrome was related with the incidence rate of total DVT [95%CI(2.221~7.384),P=0.042] and not related with symptomatic DVT [95%CI(1.036~12.575),P=0.077].Conclusion Patients with MS have increased risk of the incidence rate of total DVT after total knee arthroplasty.Dyslipidemia in the MS component is an independent risk factor for the incidence rate of total DVT and symptomatic DVT after total knee arthroplasty,and overweight(BMI≥25 kg/m2) is an independent risk factor for the incidence rate of total DVT after total knee arthroplasty.The incidence rate of total DVT and symptomatic DVT after total knee arthroplasty is related to the number of MS components;the higher the number of MS components,the higher the incidence rate of total DVT and symptomatic DVT after surgery.
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