Fig. 2From: A comparative study of flat surface design and medial pivot design in posterior cruciate-retaining total knee arthroplasty: a matched pair cohort study of two yearsRelationship of estimated total blood loss and body weight. (Estimated total blood loss) =22 × (body weight) − 401, R = 0.441, p = 0.001, simple regression analysis. White dots: FINE Knee group and black dots: Hi-Tech Knee II groupBack to article page