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Table 7 Incidence of complications within 12 months following TKA and UKA

From: Unicompartmental knee arthroplasty: A PearlDiver study evaluating complications rates, opioid use and utilization in the Medicare population

Complication

UKA

TKA

p

RR

95% CI

#

%

#

%

Acute kidney injury

248

3.18%

9,078

6.02%

 < 0.0001

0.5581

(0.4930, 0.6318)

Cardiac arrest

25

0.32%

823

0.55%

0.0082

0.5893

(0.3961, 0.8767)

Deep vein thrombosis

42

0.54%

1,168

0.78%

0.0215

0.6991

(0.5143, 0.9503)

Pneumonia

280

3.59%

7,891

5.24%

 < 0.0001

0.7194

(0.6399, 0.8086)

Pulmonary embolism

99

1.27%

3,012

2.00%

 < 0.0001

0.6466

(0.5299, 0.7888)

Urinary tract infection

1,109

14.20%

28,445

18.88%

 < 0.0001

0.8889

(0.8409, 0.9397)

Wound deshiscence

82

1.05%

2,407

1.60%

0.0003

0.6676

(0.5363, 0.8310)

Hematoma

71

0.91%

2,245

1.49%

0.0001

0.6191

(0.4894, 0.7833)

Transfusion

82

1.05%

4,271

2.83%

 < 0.0001

0.3808

(0.3064, 0.4733)

Capsulitis

53

0.68%

1,204

0.80%

0.2655

0.8560

(0.6507, 1.1260)

Nerve injury

0

0.00%

81

0.05%

0.0405

0

-