title: Location of valves and competence of the great saphenous vein above the knee.
abstract: The exact location of the valves of the great saphenous vein and the ability of these valves to prevent centrifugal flow were studied in 20 human cadaveric legs. A valve was present at the saphenofemoral junction in 17/20 (85%) legs. The great saphenous vein above the knee had 4.2 +/- 1.5 (mean +/- SD) valves. In a length-standardised great saphenous vein which measured 100 units from the saphenofemoral junction to the knee joint line, the first, second, third, fourth and fifth valves were located at 7.5 +/- 3.6; 34.3 +/- 18.5; 61.0 +/- 20.9; 79.3 +/- 17.6; and 83.0 +/- 15.9 units from the junction respectively. 19/20 (95%) of the veins were competent at a centrifugal pressure of 161 +/- 7 cm of saline.
authors.affiliation: Department of Surgery, Alexandria Hospital, Singapore.
authors.forename: A S
authors.initials: AS
authors.lastname: Pang
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001344:Autopsy; D005260:Female; D006801:Humans; D008297:Male; D008365:Manometry; D011312:Pressure; D012016:Reference Values; D012501:Saphenous Vein / Q000033:anatomy & histology* / Q000502:physiology; D014655:Vascular Resistance