Risk Factors for Blood Loss Following Total Knee Arthroplasty: How Far is Left to Go?

The authors have reported on the prospective measurements of intraand post-operative blood loss of 96 total knee arthroplasty cases and have analyzed the relationship between these values and demographical factors of the series. Mean intraoperative blood loss and postoperative drainage were determined to be 147.1 ± 97.4 mL and 494.4 ± 188.1 mL, respectively. Male and obese patients had significantly higher intraoperative blood loss, whereas male sex and older age were associated with a greater drop in hemoglobin (Hb), on the first postoperative day. No predictors of the need for transfusion were found.