Table 4 In-hospital Postoperative Complications Associated with Patients who underwent Elective THA and HRA

Prosthesis-related complications

Dislocation

1088(0.2%)

16(0.16%)

0.47

0.97

0.38–2.53

Periprosthetic fracture

554(0.1%)

4(0.04%)

0.08

0.63

0.13–3.13

Periprosthetic joint infection

905(0.17%)

13(0.13%)

0.47

2.11

0.77–5.75

Prosthesis loosening

455(0.08%)

17(0.17%)

0.005

5.41

2.13–13.71

Revision arthroplasty

6179(1.15%)

52(0.53%)

< 0.001

1.30

0.54–3.11

Other prosthesis-related complications

1670(0.31%)

27(0.28%)

0.62

1.59

0.86–2.92

Any prosthesis-related complication ^c

9485(1.76%)

99(1.02%)

< 0.001

0.54

0.22–1.30

Other common complications

Postoperative shock

446(0.08%)

3(0.03%)

0.11

1.08

0.26–4.49

Acute posthemorrhagic anemia

132,010(24.56%)

1813(18.61%)

< 0.001

0.86

0.75–0.98

Blood transfusion

103,639(19.28%)

1024(10.51%)

< 0.001

0.84

0.74–1.04

Deep vein thrombosis

967(0.18%)

7(0.07%)

0.02

0.47

0.17–1.28

Pulmonary embolism

892(0.17%)

8(0.08%)

0.06

1.27

0.50–3.21

Acute cerebrovascular disease

561(0.1%)

2(0.02%)

0.016

0.96

0.23–3.98

Pneumonia

2284(0.42%)

2(0.02%)

< 0.001

0.16

0.03–0.64

Acute renal failure

8658(1.61%)

41(0.42%)

< 0.001

0.77

0.54–1.08

Urinary tract infection

15,040(2.8%)

74(0.76%)

< 0.001

0.62

0.47–0.82

Nerve injury of lower limb

237(0.04%)

11(0.11%)

0.0054

2.71

1.33–5.51

Wound dehiscence and infection

4833(0.9%)

68(0.7%)

0.042

0.97

0.72–1.31

Wound debridement

690(0.13%)

7(0.07%)

0.16

0.46

0.18–1.17

Mortality

491(0.09%)

1(0.01%)

0.01

0.45

0.06–3.63

Any common complications ^d

199,299(37.09%)

2535(26.02%)

< 0.001

1.30

1.12–1.50