title: [How does the "substitute value"-formation of the popliteal vein perform in the surgical treatment of venous insufficiency of the lower extremities?].
mesh_terms: D005500:Follow-Up Studies; D006801:Humans; D007866:Leg / Q000098:blood supply*; D007871:Leg Ulcer / Q000000981:diagnostic imaging / Q000601:surgery*; D008722:Methods; D010690:Phlebography; D011152:Popliteal Vein / Q000601:surgery*; D014648:Varicose Veins / Q000000981:diagnostic imaging; D014689:Venous Insufficiency / Q000000981:diagnostic imaging / Q000601:surgery*
vernacular_title: Was leistet die "Ersatzklappen"-Bildung an der V. poplitea in der operativen Behandlung der Veneninsuffizienz der unteren Extremitäten.