Comparison in Need for Bank Blood Between Patients Undergoing Total Hip Surgery That Either Receive Their Own Blood Back or Not

Inclusion Criteria: * Provision of informed consent * Scheduled for primary or secondary, cemented or non-cemented, total hip arthroplasty * Classified as ASA Physical Status Classification System class P1, P2 or P3 according to the American Society of Anaesthesiology. Exclusion Criteria: * Involvement in the planning and conduct of the study (applies to both Astra Tech staff or staff at the study site) * Previous enrollment or randomisation of treatment in the present study * Expected or confirmed participation in another clinical study, that may interfere with the present study, during the study period * Suspected severe non-compliance to protocol as judged by the investigator * Current symptoms of haemophilia * Current symptoms of hyperkalaemia * Current symptoms of systemic infection or local infection in the operation field * Current symptoms of impaired renal function including creatinine/clearance levels above the normal reference values * History of or presence of malignant disease with propensity for systemic spread during the last 5 years * Current or expected use of cytotoxic drugs * Current untreated anaemia (e.g. sickle cell anaemia), i.e. Hb concentration \< 11 g/dl (7 mmol/l) * Use of recombinant erythopoetin * Use of aprotinin and/or fibrin sealant * Use of other autologous blood transfusion than that with the Sangvia® system (e.g. CellSaver, pre-donation, acute normovolemic haemodilution etc.) * Women of childbearing age * Fractures * Revision/secondary total hip surgery with expected serious bone grafting