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Journal Title
Title of Journal: Knee Surg Sports Traumatol Arthrosc
Abbravation: Knee Surgery, Sports Traumatology, Arthroscopy
Publisher
Springer-Verlag
DOI
10.1016/0042-207x(91)91860-q
ISSN
1433-7347
The aim of this study was to compare blood loss and transfusion requirements in patients undergoing computerassisted total knee arthroplasty TKA and patients operated with conventional instrumentation with intramedullar guides A prospective randomized study of 87 patients undergoing a TKA assigned to conventional technique n = 44 or computerassisted surgery n = 43 was conducted All patients were operated by the same surgeon and in all cases a cemented arthroplasty and deep recovery drainage were used Both groups were comparable in all variables except for duration of ischemia which was 137 min higher in the computerassisted group Blood loss due to drainage was higher in the conventional technique group 613 vs 447 ml as was the number of patients in which blood from the blood recovery system was reinfused 53 vs 23 Those patients undergoing computerassisted surgery experienced less bleeding than those operated with the conventional technique However hemoglobin drop and allogenic transfusion rate were not statistically different in both groups