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158. METABOLIC SYNDROME AND THE INCIDENCE OF DEEP VEIN THROMBOSIS FOLLOWING TOTAL KNEE ARTHROPLASTY



Abstract

Purpose: Metabolic syndrome (MS) is defined as central adiposity, elevated fasting glucose, hypertension, and dyslipidemia defined as high triglyceride and low high-density lipoprotein (HDL) cholesterol. MS is associated with a systemic proinflammatory and prothrombotic state. We asked if patients with MS undergoing total knee arthroplasty (TKA) have an increased risk for symptomatic deep vein thrombosis at 3 months follow-up (DVT).

Method: 1,460 consecutive patients were reviewed from our joint registry undergoing primary, unilateral TKA between the years of 1998–2006. Demographic variables of age, gender, comorbidity, and education were retrieved. Metabolic syndrome (MS) was defined as body mass index above 30 kg/m2, diabetes, hypertension, and hypercholesterolemia. Logistic regression was used to examine the relationship of MS on the incidence of DVT.

Results: The overall incidence of symptomatic DVT was 4.4% (65/1460). Patients with MS had an increased incidence of DVT as compared to those without MS(15.5% vs 3.4%). Adjusted analysis showed that MS increased the risk of symptomatic DVT by 3.2(95% CI [1.0,15.4], p=0.04) times compared to those without MS.

Conclusion: Hospital protocols developed for prophylactic anti-coagulation following TKR should give special consideration to patients with MS.

Correspondence should be addressed to CEO Doug C. Thomson. Email: doug@canorth.org