Effectiveness of an ankle continuous passive motion device in the prevention of deep venous thrombosis

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Deep venous thrombosis (DVT) is one of complications after major surgeries that may result in morbidity and mortality. In aim to reduce the incidence of DVT, ankle continuous passive motion (CPM) device is one of commercially availablemodalities. In the present study, popliteal veins were examined by using color-flow and duplex ultrasonography in 7 normal limbs comparing various ranges of ankle motion and turning angle velocities of the CPM device. Increase in venous flows and velocities could be obtained with a positive correlation with the degrees and velocities of the device and in a similar effect when compared with the established device.