Send to

Choose Destination
See comment in PubMed Commons below
Z Orthop Ihre Grenzgeb. 1997 Jan-Feb;135(1):52-7.

[Comparison between low-molecular and unfractionated heparin in the prevention of thrombosis in patients with total endoprosthetic replacement of hip and knee joint].

[Article in German]

Author information

  • 1Orthopädische Universitätsklinik Würzburg.



Thrombosis-prophylaxies with heparins after total hip arthroplasty (THP) and total knee arthroplasty (TKA) is well accepted. The aim of this study was to compare the low molecular weight heparin (Enoxaparin) with PTT adjusted unfractionated heparin (Na-heparin).


In a prospective study of 226 patients after THA and TKA, we performed physical examination and ultrasound in compression and duplex technique one day before surgery and at the 7th and 14th day after surgery. 120 patients received Enoxaparin 1 x 40 mg per day in fixed dosage. 106 patients received Na-heparin 3 x 5000 IE. Since PTT did not reach 40 seconds, Na-heparin dosage was increased to 3 x 7500 IE.


The overall thrombosis rate was 4% (n = 9), in the Enoxaparin group 2.9% for the 70 THA and 10% for the 50 TKA. Thrombosis occurred in the group of unfractionated heparin (PTT adjusted) in 1.8% after THA and in 2% after TKA. In TKA, there is statistical difference between the two heparin groups.


In the thrombosis prophylaxis of TKA, PTT adjusted unfractionated heparin is superior to low molecular weight heparin in fixed dosage.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Georg Thieme Verlag Stuttgart, New York
    Loading ...
    Support Center