Patients and methods: The data of a total of 96 extremities of 48 vascular asymptomatic patients (9 males, 39 females; mean age 65.7±51.8 years; range, 50 to 85 years) who underwent arterial and venous bilateral Doppler ultrasound examination between October 2017 and February 2018 were retrospectively analyzed. Stenosis of the arterial and venous system thrombosis and venous insufficiency were recorded.

Results: Although no significant vascular pathologies such as deep vein thrombosis or arterial occlusion were detected, minor vascular pathologies such as minimal atherosclerosis (29.2%) and venous reflux (25%) were found in patients scheduled for TKA.

Conclusion: In most patients, TKA operations can be performed without a vascular comorbidity; however, even asymptomatic patients may carry vascular risks. These silent patients can be identified by simple non-invasive tests. Patients under risk are supposed to be consulted with vascular surgery before the operation and can be operated in the hospital setting where a vascular surgery unit is available. Recognizing the silent group with color Doppler ultrasound can be helpful and feasible in patients undergoing TKA to reduce complication rate and to take precautions. Keywords : Arthroplasty, knee, pathology, peripheral, vascular