Effects of primary deep venous valvular incompetence of lower limb in deep vein thrombus after total knee replacement / 中华外科杂志

ABSTRACT

<p><b>OBJECTIVE</b>To evaluate the effects of primary deep venous valvular incompetence of lower limb (PDVI) to the occurrence of deep vein thrombosis (DVT) after human total knee replacement (TKR).</p><p><b>METHODS</b>One hundred and twenty-six patients who planed to receive TKR were examined by color doppler flow imaging (CDFI). The patients were divided into 2 groups depending on whether they were found backstreaming in femoral vein or not. When the refluxing time > 1 s, the patients were included in PDVI group; When the refluxing time < or = 1 s, the patients were included in without PDVI group. In 7 d after operation all the patients were re-examined by CDFI to find if there was DVT. The results were tested by chi2 statistical analysis.</p><p><b>RESULTS</b>Among the 126 patients, 54 had PDVI, and 72 without PDVI. Fifty patients had DVT, total incidence rate 39.7% (50/126). In PDVI group 33 patients had DVT (61.1%, 33/54); In without PDVI group 17 patients had DVT (23.6%, 17/72), which was lower than PDVI group (chi2 = 21.227, P < 0.05).</p><p><b>CONCLUSIONS</b>PDVI may be a risk for occurrence of DVT after TKR.</p>