IF THE FEMORAL pulse is diminished or absent in a clinically ischemic leg, the informed physician properly suspects that he may be dealing with a surgically correctable problem, since in such cases the obstructing lesion may be limited to the aorto-iliac or iliofemoral areas. However, patients with clinical evidence of arterial insufficiency of the leg are frequently found to have normal femoral and absent popliteal pulsation in that limb. In these cases obstruction may exist in the superficial femoral artery (low, high, or total), the popliteal artery (low, high, or total) or the entire femoropopliteal system.1
Knowledge of the level and/or the extent of the block in such patients is important, since the lesions which are higher may be amenable to surgery while those which involve the distal popliteal artery are usually difficult to cure surgically. It is the purpose of this communication to report observations which indicate
ZWEIFLER AJ. Significance of Knee Skin Temperature in Ischemic Legs. Arch Intern Med. 1965;115(2):151–154. doi:10.1001/archinte.1965.03860140031007
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