Seasonal variation in the occurrence of deep venous thrombosis after total hip and knee arthroplasty / 中国组织工程研究

ABSTRACT

BACKGROUND:Deep vein thrombosis and pulmonary embolism are certainly related to seasons. OBJECTIVE:To analyze whether there is a seasonal pattern for deep venous thrombosis (DVT) after total hip and knee arthroplasty. METHODS:We retrospected 866 patients (1 114 joints) underwent total hip and knee arthroplasty. There were 506 cases of total hip arthroplasty, including 287 male cases and 219 female cases, and 608 cases of total knee arthroplasty, including 133 male cases and 475 female cases. The average age was (60.98±0.87) years. After arthroplasty, patients were given color Doppler ultrasound in the deep veins of the lower limbs and pelvis to analyze the correlation between occurrence of deep vein thrombosis and seasons. RESULTS AND CONCLUSION:There was a significant difference in the incidence of deep vein thrombosis in summer and winter (χ2=7.190, P=0.007), in summer and spring (χ2=6.995, P=0.008), as wel as in summer and autumn (χ2=5.663, P=0.017). No statistical differences were tested in spring and autumn, in autumn and winter, and in spring and winter (P>0.05). These findings indicate that there is a seasonal variation of deep venous thrombosis after arthroplasty, and the highest incidence of deep vein thrombosis is in winter.