Total Knee Arthroplasty: Do Outcomes Differ By Implant Design in the Real World?

An OMNY Health™ Poster

Our objective was to evaluate the effect of single-radius (SR) vs. multi-radius (MR) implant design on clinical, functional, and utilization outcomes for TKA patients in the real-world setting.

On May 15 – May 18, 2022, this poster was on display at ISPOR 2022.

Conclusions:

  • Clinical outcomes were similar between SR and MR cohorts, including:
    – Mortality (% [95% confidence interval]) (1.1% [0.6%
    – 2.0%] vs 0.3% [0.0% – 2.0%]),
    – Postoperative knee pain (0.6% [0.2% – 1.3%] vs 1.2%
    [0.4% – 3.3%]),
    – Postoperative implant removal (0.4% [0.2% – 1.1%]
    vs 0.0% [0.0% – 1.4%]),
  • The functional outcome of non-routine discharge disposition was also similar across SR and MR cohorts (16.4% [14.3% – 18.7%] vs 16.4% [12.7% – 21.0%]).
  • Utilization was similar between SR and MR cohorts for LOS (mean [SD]: 0.98 [1.38] vs 0.96 [1.53]), while gross charges were slightly higher for the SR cohort (median [Q1, Q3]: $43,879 [$39,392 – $51,851] vs. $39,255 [$35,778 – $42,599]

 

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