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KMID : 0361620080430060766
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Journal of the Korean Orthopaedic Association
2008 Volume.43 No. 6 p.766 ~ p.774
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Gene Polymorphism Analysis Related to the Development of Deep Vein Thrombosis
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Song Eun-Kyoo
Seon Jong-Keun
Park Sang-Jin
KJim Young-Jin
Park Young-Hoon
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Abstract
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Purpose: To determine if the presence of thrombophilic genes affects the development of deep vein thrombosis after total knee arthroplasty (TKA).
Materials and Methods: One hundred and forty consecutive patients who underwent primary total knee arthroplasty were enrolled in this study. Preoperatively, all the patients were evaluated for general and hematological risk factors, as well as associated thrombophilic gene polymorphisms. Molecular genetic testing was carried out to detect the following thrombophilic gene polymorphisms: the factor V Leiden mutation, prothrombin promoter G20210A mutation, methylenetetrahydrofolate reductase (MTHFR) C677T, and the plasminogen activator inhibitor-1 (PAI-1) 4G/5G polymorphism.
Results: Deep vein thrombosis was observed in 48 (34%) patients. Regarding the genetic factors, no mutations in factor V Leiden or prothrombin promoter G20210A were detected in any patient regardless of whether they had DVT. The T677T and C677T genotypes of the MTHFR gene had no effect on the development of DVT compared with the C677C genotype. Regarding the PAI-1 gene, the presence of 4G/4G was not associated with an increased risk of DVT. In addition, there was a similar prevalence of the 4G allele in the DVT patients (77%) and controls (84%).
Conclusion: Thrombophilic gene polymorphisms do not appear to play an important role in the development of deep vein thrombosis. Therefore, screening tests for these genes will not be useful in determining the risk of deep vein thrombosis in our ethnic patients.
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KEYWORD
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Thrombophilic gene, Deep vein thrombosis, Total knee arthroplasty
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