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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 -