Complications of heparin therapy after total joint arthroplasty.

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Abstract
The cases of 112 patients who were treated intravenously with heparin for thromboembolic disease after total joint arthroplasty were reviewed. The over-all frequency of bleeding complications that were associated with therapy with heparin was approximately 30 per cent. In patients who were treated within six days after total joint replacement, the frequency of bleeding complications was 45 per cent. The prevalence of bleeding problems declined to 15 per cent in patients who were treated more than one week after arthroplasty. In roughly 35 per cent of the patients, therapy with heparin had to be discontinued because of complications. Thrombocytopenia developed in fewer than 5 per cent of the patients. It was concluded that anticoagulation therapy with heparin for clinically unimportant thromboembolic problems in the immediate postoperative period is not justified.