Table 4 Matched Analysis

Post operative variables (Incidence percentage)

 Mortality

0

0

**

**

**

 Acute renal failure*

6.4%

0.5%

13.821

[1.791, 106.673]

p = 0.01

 Myocardial infarction

0%

0%

**

**

**

 Blood loss anemia

16.7%

9.9%

1.841

[1.020, 3.323]

p = 0.041

 Pneumonia

0.5%

0

0.499

[0.452, 0.550]

p = 0.499

 Pulmonary embolism

0.5%

1%

0.498

[0.045, 5.530]

p = 0.562

 Deep vein thrombosis

0.5%

0.5%

1

[0.062, 16.097]

p = 1.000

 Periprosthetic fracture

1%

1%

1

[0.139, 7.168]

p = 1.000

 Periprosthetic dislocation

1%

0.5%

2.010

[0.181, 22.343]

p = 0.562

 Periprosthetic mechanical complication

1.5%

0%

0.496

[0.450, 0.548]

p = 0.082

 Periprosthetic infection

3%

1%

3.061

[0.610, 15.349]

p = 0.153

 Superficial surgical site infection

0%

0%

**

**

**

 Deep surgical site infection

0%

0%

**

**

**

 Wound dehiscence

0.5%

0.5%

1

[0.062, 16.097]

p = 1

 Cardiac arrest and ventricular fibrillation

0%

0%

**

**

**

 Blood transfusion*

3.9%

0.5%

8.287

[1.027, 66.827]

p = 0.018