Skip to main content

Table 1 The demographic data of the subjects in this study

From: A comparative, retrospective study of peri-articular and intra-articular injection of tranexamic acid for the management of postoperative blood loss after total knee arthroplasty

  PAI TXA group (n = 49) IAI TXA group (n = 36) Control group (n = 42) P value
Age (years) 68.5 ± 7.4 69.7 ± 7.2 69.6 ± 5.7 0.66
Gender (M/F) 8/41 5/31 10/32 0.48
Height (m) 1.6 ± 0.1 1.6 ± 0.1 1.6 ± 0.1 0.49
Weight (kg) 67.6 ± 11.7 65.1 ± 10.4 67.9 ± 9.3 0.44
BMI (kg/cm2) 25.9 ± 3.7 25.6 ± 3.9 26.6 ± 3.8 0.47
Preoperative Hb (g/L) 124.3 ± 10.5 123.8 ± 10.7 125.9 ± 12.9 0.69
INR 0.98 ± 0.2 0.95 ± 0.1 0.94 ± 0.0 0.38
PT (s) 11.5 ± 2.5 11.1 ± 0.7 11.1 ± 0.6 0.33
APTT (s) 27.0 ± 4.3 27.0 ± 3.3 27.0 ± 2.9 0.99
PLT (×109/L) 213.7 ± 77.8 212.1 ± 63.5 212.8 ± 61.1 0.99
Operation time (min) 94.5 ± 16.4 92.1 ± 13.3 88.5 ± 10.3 0.12
Anticoagulant use, % yes 8.2 11.1 9.5 0.90
Thromboembolic tendency, % yes 14.3 11.1 14.3 0.89
Coagulopathies, % yes 2 0 0 0.20
  1. Values are expressed as the mean ± standard deviation
  2. PAI TXA peri-articular injection of tranexamic acid, IAI TXA intra-articular injection of tranexamic acid, BMI body mass index, Hb hemoglobin, INR international normalized ratio, PT prothrombin, APTT activated partial thromboplastin time, PLT platelet