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Post-Surgical Blood Clot Study Stirs Controversy
Health Leaders Media

A controversial study estimates the risk of venous thromboembolism, or serious blood clot, at 1% for those undergoing knee replacement and .5% for those receiving a new hip during the few days they recuperate in the hospital after surgery.

The authors, Jean-Marie Januel and colleagues from Lausanne University Hospital in Switzerland and co-authors in France and Canada, used data from 47 studies, most of them randomized controlled trials.