Old Blood and Postoperative Complications

The Effects of Old Red Blood Cell Transfusion on Morbidity in Patients Undergoing Revision Total Hip Arthroplasty: Retrospective Study

The investigators sought to examine the effects of 'old' red blood cells on mortality and morbidity of patients who undergoing revision hip replacement arthroplasty. The investigators hypothesis is that patients have an increased risk of mortality and infection after 'old' red blood cells transfusions compared with those who received 'new' transfusions.

Inclusion Criteria:

• Patients who underwent revision total hip replacement

Exclusion Criteria:

• Patients who were not given red blood cells
• Patients who were given two units of which one unit was old and one was new