The increased blood loss and resulting need for allogenic blood has been a major concern of one-stage bilateral total knee arthroplasty (TKA). One hundred eighteen consecutive patients donating either 2 units (87 patients) or 3 units (31 patients) of autologous blood prior to one-stage bilateral TKA were retrospectively evaluated to determine: (1) how many patients received allogenic transfusion; (2) what percentage of autologous blood was wasted; and (3) whether donating 2 or 3 units of autologous blood before surgery is more cost-effective. Fifteen patients in the 2-units donation group (17.2%) and one patient in the 3-units donation group (3.2%) required allogenic blood transfusions. In the 2-units group, 37.9% of the patients wasted 21.8% of predonated autologous blood, and in the 3-units group, 64.5% of the patients wasted 32.3% of predonated autologous blood. The estimated cost for patients donating 2 or 3 units of blood was $1,814.17 and $1,996.10, respectively. Donating 2 units of autologous blood is more cost-effective; however, patients donating 3 units of blood required less allogenic blood.
About the HSS Journal
HSS Journal, an academic peer-reviewed journal, is published twice a year, February and September, and features articles by internal faculty and HSS alumni that present current research and clinical work in the field of musculoskeletal medicine performed at HSS, including research articles, surgical procedures, and case reports.