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Table 11 8 year UKA implant survival by age and gender (with a minumum 8 year follow up)

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

  Number of UKA patients Convervsion to TKA 8 year survival (95% CI)
Total 1195 110 .911 (.895-.928)
Age
  < 70 466 54 .893 (.865-.921)
 70–79 585 49 .915 (.892-.937)
  > 80 144 7 .958 (.926-.992)
Gender
 Female 673 70 .899 (.876-.922)
 Male 522 40 .927 (.905-.950)