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. 2020 Dec 5;6(4):972-975.
doi: 10.1016/j.artd.2020.07.043. eCollection 2020 Dec.

Implant Interface Debonding After Total Knee Arthroplasty: A New Cause for Concern?

Alex Sadauskas  1 , Charles Engh 3rd  1 , Molly Mehta  2 , Brett Levine  1
Affiliations

Implant Interface Debonding After Total Knee Arthroplasty: A New Cause for Concern?

Alex Sadauskas et al. Arthroplast Today. .

Abstract

Background: Aseptic loosening has long been an associated etiology for revision total knee arthroplasty (TKA).

Methods: This case series investigates commonalities between 9 patients who underwent revision TKA and were found to have complete debonding at the cement-implant interface of a femoral and/or tibial component within the past 2 years.

Results: Only 3 preoperative radiographs were indicative of aseptic loosening, and all patients had an infectious etiology ruled out.

Conclusions: This case series and other similar reports suggest that there may be a growing concern for debonding as a modern form of aseptic loosening. Further research through American Joint Replacement Registry and other national databases will need to be conducted to better understand if this is truly a new cause for concern after TKA and how it may be best prevented.

Keywords: Aseptic loosening; Component failure; Debonding; Revision; TKA.

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Figures

Figure 1
Figure 1
Intraoperatively removed debonded tibial component.
Figure 2
Figure 2
Fully debonded tibial component in vivo.
See this image and copyright information in PMC

References

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