the effect of preventive intermittent calf compression on the incidence , distribution and extent of venous thrombosis after elective hip replacement was examined by randomized trial in 90 patients who were screened for postoperative thrombosis with 125i-fibrinogen leg scanning and impedance plethysmography , followed by routine venography on the seventh postoperative day .
C0230445
calf
C0023216
leg