THA: Heparin does not stop pelvic thrombi but may prevent ipsilateral femoral thrombi .
The Effect of Intraoperative Heparin Administered During Total Hip Arthroplasty on the Incidence of Proximal Deep Vein Thrombosis Assessed by Magnetic Resonance Venography
J Arthroplasty. 2005 Jan;20(1):42-50165 patients undergoing unilateral primary THA, who had comorbidity that predisposed them for deep vein thrombosis (DVT), were randomized to receive a single intraoperative injection of heparin or saline. Over a minimum of 3 months, the 2 groups did not differ in the occurrence of pelvic thrombi. There was also no difference between the two groups in the mean size of thrombi, intraoperative blood loss, and post-operative swelling. However, none of the heparin group patients developed an ipsilateral femoral thrombus.The study, therefore, concluded that heparin may prevent ipsilateral femoral thrombi, but not pelvic thrombi.
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