A Study Evaluating Efficacy and Safety of YM150 Compared to Enoxaparin in Subjects Undergoing Hip Replacement Surgery

Inclusion Criteria: * Subject is scheduled for elective hip replacement surgery Exclusion Criteria: * Subject has active bleeding or any condition associated with increased risk of bleeding * Subject has had major trauma or surgery within 3 months before planned hip replacement surgery or requires major surgery or other invasive procedures with potential for uncontrolled bleeding during the study * Subject has had an MI or stroke within 3 months before planned hip replacement surgery