Melagatran/Ximelagatran Versus Enoxaparin for the Prevention of Venous Thromboembolic Events

Inclusion Criteria: * Signed informed consent, * Female or male aged 18 years and over * Patient scheduled for primary elective hip replacement or patient requiring surgery for hip fracture. Exclusion Criteria: * History of heparin-induced thrombocytopenia * Conditions associated with increased risk of bleeding, renal impairment, known active liver disease or liver insufficiency. * Myocardial infarction, Ischemic stroke or Transient Ischemic Attack (TIA), systemic embolism or venous thrombo-embolism within 30 days of enrollment.