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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 -