KNEE-LENGTH VERSUS THIGH-LENGTH GRADUATED COMPRESSION STOCKINGS IN THE PREVENTION OF DEEP-VEIN THROMBOSIS

Graduated compression stockings can reduce the incidence of deep vein thrombosis by 60 per cent(1), by providing a decreasing compression gr adient from the ankle towards the thigh. There is both theoretical and clinical evidence that compression of the thigh as well as the calf d oes not give extra benefit(2,3). Although regarded as safe, improperly used stockings are not without risk. Problems are usually due to area s of localized high pressure, especially under 'rucked up' constrictin g bands of stocking. This is particularly so in the presence of ischae mia; manufacturers state that ischaemia is a contraindication to stock ing use. Cases of arterial thrombosis have been reported(4), as well a s more frequent skin necrosis, when stockings have been used in the pr esence of reduced arterial blood supply(5).