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Table 13 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-value

RR

95% CI

#

%

#

%

Acute kidney injury

417

2.03%

5,110

4.62%

 < 0.0001

0.4567

(0.4138, 0.5041)

Cardiac arrest

47

0.23%

617

0.56%

 < 0.0001

0.4111

(0.3057, 0.5528)

Deep vein thrombosis

13

0.06%

207

0.19%

 < 0.0001

0.3378

(0.1929, 0.5915)

Pneumonia

449

2.18%

5,984

5.41%

 < 0.0001

0.423

(0.3848, 0.4651)

Pulmonary embolism

192

0.93%

2,704

2.45%

 < 0.0001

0.3899

(0.3371, 0.4510)

Urinary tract infection

1,742

8.46%

22,678

20.51%

 < 0.0001

0.4905

(0.4683, 0.5139)

Wound dishiscence

140

0.68%

1,327

1.20%

 < 0.0001

0.5725

(0.4813, 0.6810)

Hematoma

171

0.83%

1,690

1.53%

 < 0.0001

0.5507

(0.4709, 0.6441)

Transfusion

312

1.52%

4,869

4.40%

 < 0.0001

0.3582

(0.3198, 0.4013)

Capsulitis

106

0.51%

1,381

1.25%

 < 0.0001

0.4169

(0.3423, 0.5076)

Nerve injury

0

0.00%

89

0.08%

 < 0.0001

0

-