Risk factors and countermeasures of deep venous thrombosis after total hip arthroplasty

Abstract

Objective To investigate the risk factors and preventive measures of deep venous thrombosis (DVT) in lower limbs after hip arthroplasty. Methods 78 patients undertaking hip replacement at our hospital from June, 2014 to June, 2016 were collected and were divided into a thrombosis group and a no thrombosis group according to the presence of postoperative lower extremity DVT. The gender, age, coronary heart disease, hypertension, obesity, body mass index, operation time, time in bed over 7 days, etc. affect DVT in lower limbs were compared between these two groups. Single and multiple factors logistic regression analysis were used to analyze the risk factors of lower extremity DVT after hip replacement. Results Univariate analysis showed that there statistical differences in over 60 years old, hypertension, operation time, time in bed over 7 days, etc. between these two groups (all P<0.05). Multivariate logistic regression analysis showed that over 60 years old, hypertension, and time in bed over 7 days were important risk factors for DVT in lower limbs after hip replacement. Conclusions Over 60 years old, hypertension, and time in bed over 7 days are important risk factors for DVT in lower limbs after hip replacement. Preventive measures should be taken early to prevent the occurrence of DVT. Key words: Hip replacement; Deep venous thrombosis; Risk factors; Countermeasures