[Thrombosis prophylaxis in orthopedic surgery].
At Trondheim University Hospital, prophylaxis against thromboembolism after orthopaedic surgery was changed
from low molecular weight heparin to fondaparinux in the autumn of 2005. The aim of this study was to evaluate the effect of this change on the incidence of thromboembolism. The study was a retrospective cohort study. The study population consisted of all patients who underwent orthopaedic surgery at Trondheim