Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Arthroplasty - Knee
Abstract number: 25508
THE KOREAN TREND IN OVERALL INCIDENCE OF DEEP VEIN THROMBOSIS
AFTER TOTAL KNEE ARTHROPLASTY IN RECENT YEARS
Kye-Youl CHO 1 , Kang-Il KIM 1 , Dae-Kyung BAE 2
1 Kyung Hee University East-West Neo Medical Center, Seoul (KOREA), 2 Kyung Hee
University Medical Center, Seoul (KOREA)
Introduction: Deep vein thrombosis (DVT) is one of the major complications following
total knee arthorplasty (TKA). Among the past studies, the incidence of DVT after
orthopaedic surgery was lower in Asian peoples than in Western ones. But we
assumed that the incidence of DVT in Korean patients not receiving pharmaceutical
prophylaxis after TKA show increasing tendency as westernizing the dietary patterns
and the lifestyle. A prospective consecutive clinical study was performed to
investigate the incidence of DVT after TKA in Korean patients. Materials and
Methods: The study group included 312 knees (229 patients) of primary TKA
conducted by a single surgeon from September 2007 to May 2010. All the patients
did not receive pharmacological thromboprophylaxis. The etiology was limited to
primary osteoarthritis. All of them received Doppler sonography and measurement of
plasma D-dimer level preoperatively and on postoperative day 6. Variables were
collected and the relationships between the development of DVT were evaluated by
statistical analysis. Results: Preoperatively, the incidental detection of DVT was
found in 14 cases (4.49%). Eight cases (57.14%) were persisted throughout the
postoperative period. Postoperatively, DVT was found in 80 knees (25.64%). There
were 9 cases (2.88%) of proximal DVT and 71 cases (22.76%) of distal DVT. The
mean of preoperative D-dimer levels of DVT-free patients and DVT documented
patients were 0.693 µg/ml and 0.669 µg/ml, respectively. The mean of postoperative
D-dimer levels were 4.045 µg/ml and 5.445 µg/ml, respectively. Postoperative Ddimer
level (p=0.001) and BMI (p=0.048) had statistically significant correlation with
DVT, but age, gender, tourniquet time and preoperative D-dimer level had not. In
ROC curve, the postoperative D-dimer level did not reveal the usefulness of the
screening. Conclusion: Our study showed the increasing tendency of DVT after TKA
in Korean patients. From now on, we might be concerned about the development of
DVT after TKA, and we might be also considering the use the pharmacological
thromboprophylaxis. Key Words: deep vein thrombosis, total knee arthroplasty,
incidence, Korean
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