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J Bone Joint Surg Br. 1992 Jan;74(1):50-2.

Thrombo-embolic prophylaxis in total knee replacement. Evaluation of the A-V Impulse System.

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  • 1Department of Orthopaedic Surgery, King's College Hospital, London, England.

Abstract

We performed a prospective randomised controlled trial of a new mechanical method of prophylaxis for venous thrombo-embolism in 60 patients undergoing knee replacement surgery. The method uses the A-V Impulse System to produce cyclical compression of the venous reservoir of the foot. The overall incidence of deep-vein thrombosis was 68.7% in patients receiving no prophylaxis and 50% in those using the device. The difference was not significant. There was, however, a reduction of the extent of thrombosis in the treated group. There were 13 major calf-vein thrombi and six proximal-vein thrombi in the control group compared with only five major calf-vein thrombi in the treated group. This difference was significant (p = 0.014). No patient developed clinical features of a pulmonary embolism.

PMID:
1732265
[PubMed - indexed for MEDLINE]
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