[By pass of the femoro-popliteal axis by autogenous saphenous graft. 100 by passes with a follow up between 1 and 5 years (author's transl)].

Venous by pass of the femoro-popliteal axis is very useful in certain special indications. A study of 100 by pass operations with a follow up between 1 and 5 years showed the indications and technic. A study of secondary worsening and comparison between three attitudes: abstinence, restoratives reoperations and preventive reoperations showed the superiority of routine detection of asymptomatic lesions and their preventive treatment. In cases of thrombosis of the bypass, a study of the general condition will permit one to choose between abstinence and a complex treatment including successively thrombolysis and then surgical removal of the cause of the thrombosis.