Corrigendum to: The Impact of the Largest National Joint Registry on Current Knee Replacement Longevity Estimates: An Analysis and Review of Knee Prosthesis Brand and Fixation Technique

Published:October 23, 2021DOI:https://doi.org/10.1016/j.arth.2021.10.003
      The authors wish to update the survival estimate for unicondylar knee replacements (UKRs) in terms of their construct brand. The patellofemoral (PFR) constructs Avon, FPV, Journey PFJ, Sigma HP and Zimmer PFJ were erroneously included in the original UKR estimates. With these removed; twelve UKR construct brands were identified (n=112,257), ten had data to 10 years (n=108,982) and four had data to 15 years (n=49,574). All cause mean construct survivorship for UKRs at 10 and 15 years are now 90.84 (95% CI, 90.02-91.57) and 81.23 (95% CI, 80.23-82.18) respectively. Table 2 and Figure 3 (attached) have been updated to reflect this. All other estimates in terms of construct brand and fixation technique were reviewed and have not been amended.
      The authors would like to apologise for this transcription error. We would also like to highlight that this increase of 1.07 and 0.53 years to UKR survival estimates does not change any conclusions derived from the original article.
      Table 2Summary of Weighted Pooled Mean All-Cause Survivorship Percentage (%) by Construct Brand and Fixation Technique at 10 and 15 y From UK National Joint Registry Data for TKR, UKR, PFR.
      10 y15 y
      Replacement typeTKR96.72 (n = 1,076,302)95.3 (n = 641,591)
      UKR90.84 (n = 123,193)81.23 (n = 55,777)
      PFR81.6 (n = 14,211)76.46 (n = 6203)
      Fixation techniqueCemented TKRs96.8
      P < .001 on independent t-testing between fixation techniques at each time point.
      (n = 994,762)
      95.6
      P < .001 on independent t-testing between fixation techniques at each time point.
      (n = 586,574)
      Uncemented TKRs96.3
      P < .001 on independent t-testing between fixation techniques at each time point.
      (n = 26,768)
      95.2
      P < .001 on independent t-testing between fixation techniques at each time point.
      (n = 23,168)
      Cemented UKRs88.2
      P < .001 on independent t-testing between fixation techniques at each time point.
      (n = 82,719)
      81.0 (n = 44,254)
      Uncemented UKRs92.74
      P < .001 on independent t-testing between fixation techniques at each time point.
      (n = 23,216)
      n/a (n = 0)
      TKR, total knee replacement; UKR, unicondylar knee replacement; PFR, patellofemoral replacement; n/a, not applicable.
      a P < .001 on independent t-testing between fixation techniques at each time point.

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