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Table 3 Comparison of postoperative variables and Perioperative complications between different groups

From: Patient outcomes in Anteromedial osteoarthritis patients over 80 years old undergoing Oxford Unicompartmental knee Arthroplasty in China

Variable

Group 1

Group 2

Group 3

F value/χ2

η2

P Value

Hospital stay (d)

10.54 ± 3.37

11.23 ± 2.82

12.64 ± 2.68

1.276

0.009

0.387

Tourniquet time (min)

72.50 ± 6.57

75.16 ± 9.53

76.23 ± 11.18

1.785

0.012

0.204

Changes of hemoglobin (g/L)

14.11 ± 7.48

15.29 ± 9.39

13.05 ± 8.69

0.967

0.026

0.458

Blood loss volume (ml)

178.17 ± 74.73

179.80 ± 84.22

175.50 ± 80.39

0.641

0.034

0.783

Preoperative ROM

111.91 ± 11.57

108.83 ± 10.84

103.86 ± 10.68

0.884

0.075

0.539

Postoperative ROM

120.23 ± 7.99

115.38 ± 8.27

112.95 ± 7.01

0.923

0.115

0.413

Perioperative complications

 Myocardial infarction

0

0

0

   

 Congestive heart failure

1 (1.6%)

0

0

0.598

/

0.567

 Cerebrovascular accident

0

0

0

   

 Lung infection

1 (1.6%)

1 (1.2%)

2 (2.9%)

0.682

/

0.542

 Pulmonary embolism

0

0

0

   

 Urinary system infection

0

0

0

   

 Abnormal renal and liver function

2 (3.3%)

4 (5.1%)

0

3.117

/

0.195

 Deep vein thrombosis

3 (5.0%)

5 (6.3%)

5 (7.1%)

0.265

/

0.838

 Calf muscular vein thrombosis

9 (15.0%)

14 (17.7%)

13 (18.5%)

0.386

/

0.643

 Hypoproteinemia

8 (13.3%)

9 (11.4%)

11 (15.7%)

1.487

/

0.455

 Superficial infection

1 (1.6%)

1 (1.2%)

11 (15.7%)*

11.248

/

0.015

 Deep infection

0

0

0

   

 Swelling of the wound

4 (6.6%)

5 (6.3%)

12 (17.1%)*

10.749

/

0.023

  1. “*” Represent compared with the Group 1and 2, the difference in Group 3 is statistically different