AB107. SOH25_AB_059. Improved performance of modern cementless total knee arthroplasty (TKA) across international registries: a comparative review
Orthopaedic Session I

AB107. SOH25_AB_059. Improved performance of modern cementless total knee arthroplasty (TKA) across international registries: a comparative review

Meadhbh Ni Mhiochain de Grae1, Armon Nasehi1, David Dalury2, Bas Masri3, Gerard Anthony Sheridan1

1Department of Orthopaedic Surgery, Galway University Hospital, Galway, Ireland; 2Department of Orthopaedic Surgery, St. Joseph Medical Center, Baltimore, MD, USA; 3Department of Orthopaedic Surgery University of British Columbia, University of British Columbia, Vancouver, BC, Canada

Background: Cementless fixation in total knee arthroplasty (TKA) has been associated with higher revision rates in the past. However, due to advancements in design, as well as surgical technique, cementless TKA performance has made significantly improvements. The advantages of cementless fixation include reduced cement-related complications, shorter operating times and the potential benefits of osseointegration. Our study aimed to assess the improvement in revision rates for cementless TKA over the last 10 years based on international registry reports.

Methods: A comprehensive retrospective review was conducted of six major English-speaking knee arthroplasty registries across the world, including the National Joint Registry of England and Wales, Northern Island, Isle of Man and Guernsey (hereby referred to as British), Swedish, Canadian, American, Australian, and New Zealand National Joint Registry. Data was collected from the year 2014 along with the most recent annual report published, 2022 or 2023. Data points collected included usage rates of cemented and cementless prostheses for primary TKA, their respective revisions rates, and indications for revision.

Results: Across four databases, there was an average 8.3% increase in the utilization of cementless fixation for primary TKA over the past decade. Three registries reported a reduction in revision rates for cementless fixation. Lower revision rates for cementless compared to cemented TKA were observed in the most recent American (3.2% cemented vs. 2.8% cementless) and New Zealand annual reports (11.8% cemented vs. 4.5% cementless). In 2022, the British registry reported lower rates of revision for infection with cementless fixation (0.56 vs. 0.89).

Conclusions: International registries demonstrate increased utilisation of cementless TKA. Cementless TKA was reported to have lower revision rates in the most recent US and New Zealand annual reports when compared to cemented TKA.

Keywords: Total knee arthroplasty (TKA); cementless; registry; revision; arthroplasty

Acknowledgments

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Footnote

Funding: None.

Conflicts of Interest: The authors have no conflicts of interest to declare.

Ethical Statement: The authors are accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0/.

doi: 10.21037/map-25-ab107
Cite this abstract as: de Grae MNM, Nasehi A, Dalury D, Masri B, Sheridan GA. AB107. SOH25_AB_059. Improved performance of modern cementless total knee arthroplasty (TKA) across international registries: a comparative review. Mesentery Peritoneum 2025;9:AB107.

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