Retaining a Well-fixed Cone During Revision Total Knee Arthroplasty: Surgical Technique and Outcomes

Metaphyseal cones are frequently used in revision total knee arthroplasties (TKAs). However, during subsequent aseptic re-revisions, removing a well-fixed cone can be difficult. One innovative option is to retain the well-fixed cone and cement a new, stemmed revision component through the retained c...

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Bibliographic Details
Main Authors: Xiao T. Chen, MD, Michael W. Seward, MD, Robert T. Trousdale, MD, David G. Lewallen, MD, Matthew P. Abdel, MD, Nicholas A. Bedard, MD
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Arthroplasty Today
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Online Access:http://www.sciencedirect.com/science/article/pii/S2352344124001626
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Summary:Metaphyseal cones are frequently used in revision total knee arthroplasties (TKAs). However, during subsequent aseptic re-revisions, removing a well-fixed cone can be difficult. One innovative option is to retain the well-fixed cone and cement a new, stemmed revision component through the retained cone, yet minimal data exist on this technique. We describe a technique for retaining a well-fixed cone during re-revision TKA and report outcomes in 6 patients with 6 well-fixed metaphyseal cones. At a mean of 4 years follow-up, no retained cones with a new femoral or tibial component with stems were revised and there was no radiographic evidence of aseptic loosening. These early data suggest that retaining a well-fixed cone can be safe in re-revision TKA to minimize morbidity associated with cone removal. Level of evidence: IV (retrospective study).
ISSN:2352-3441