The primary objective of this study is to compare the effect of perioperative administration of PROCRIT to that of preoperative autologous donation on post-operative rehabilitation outcomes in subjects undergoing primary unilateral knee arthroplasty.~Secondary objectives are : 1) To compare the effect of perioperative administration of PROCRIT to that of preoperative autologous donation on hemoglobin, change in hemoglobin, number of units transfused and transfusion rate during the study period; and 2) To compare the effect of perioperative administration of PROCRIT to that of preoperative autologous donation on inpatient rehabilitation length of stay.~The study will test the hypothesis that perioperative administration of PROCRIT will improve post-operative rehabilitation outcomes, compared with preoperative autologous donation. 40,000U PROCRIT or Placebo SC in relation to surgery date: Days -21, -14, -7, 0 (day of surgery), 7, and 14.
The purpose of this study is to compare the effect of perioperative administration of PROCRIT to that of autologous blood donation on post-operative rehabilitation outcomes in patients undergoing unilateral knee surgery.