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Table 3 Blood examination, blood loss, and blood transfusion data

From: Investigation of perioperative safety and clinical results of one-stage bilateral total knee arthroplasty in selected low-risk patients

Parameter n = 67
Hb (g/dl)
 Preoperative 12.8 ± 1.1a
 POD 1 11.0 ± 1.1a
 POD 7 10.2 ± 1.3a
 POD 14 10.6 ± 1.1a
 POD 21 10.8 ± 1.1 (n = 66)a
Postoperative CRP (mg/dl)
 POD 7 3.4 ± 1.7a
 POD 14 1.7 ± 1.5a
 POD 21 1.0 ± 1.2 (n = 66)a
 D-dimer level 7 days after surgery (μg/ml) 13.4 ± 6.1 (n = 65)
Blood loss (ml)
 Drained 617.3 ± 362.6
 Total 1139.5 ± 365.7
Transfusions
 Transfusion rate (%) 95.5
 Autologous (ml) 310.4 ± 168.0
 Allogeneic (units) 0.4 ± 0.8
 Amount of Hb (g) 51.7 ± 10.2
  1. Hb hemoglobin, POD postoperative day, CRP C-reactive protein
  2. Results are presented as mean ± standard deviation
  3. aSignificant difference between the time points (P < 0.05)