Skip to main content

Table 2 Postoperative data for all patients

From: Intra-articular injection of tranexamic acid via a drain plus drain-clamping to reduce blood loss in cementless total knee arthroplasty

Parameter

Study group (n = 70)

Control group (n = 70)

P value

Operative time (min)

68.8 ± 14.2

82.7 ± 16.8

< 0.001

Postoperative Hb (g/dl)

POD 1

11.3 ± 1.2

11.1 ± 1.3

NS

POD 7

10.7 ± 1.3

10.1 ± 1.1

< 0.001

POD 14

10.9 ± 1.1

10.7 ± 1.0

NS

Blood loss (ml)

Drained

271.1 ± 201.8

506.4 ± 256.8

< 0.001

Total

633.8 ± 317.2

1276.0 ± 327.1

< 0.001

Transfusions

   

Autologous (ml)

40.0 ± 120.9

264.1 ± 195.5

< 0.001

Allogeneic (units)

0.2 ± 0.7

1.1 ± 1.7

< 0.001

Transfusion rate (%)

Autologous

10.0

65.7

< 0.001

Allogeneic

10.0

31.4

< 0.001

D-dimer level 7days after surgery (μg/ml)

6.8 ± 2.4

7.7 ± 3.8

0.042

  1. Results are the mean ± SD.