Dissociation of a Medial Pivot Polyethylene in a Kinematically Aligned Total Knee Arthroplasty

An 81-year-old male patient who underwent a Medacta GMK sphere kinematically aligned (KA) total knee arthroplasty (TKA) for end-stage knee osteoarthritis presented with a dislocated medial pivot (MP) tibia polyethylene (PE) insert on routine six-week postoperative x-rays. The patient presented asymp...

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Detalles Bibliográficos
Autores principales: Cheppalli, Naga, Clinger, Bryce, Brady, Nicholas W, Skelly, William
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cureus 2022
Materias:
Radiology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8893934/
https://www.ncbi.nlm.nih.gov/pubmed/35261833
http://dx.doi.org/10.7759/cureus.21813
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author Cheppalli, Naga
Clinger, Bryce
Brady, Nicholas W
Skelly, William
author_facet Cheppalli, Naga
Clinger, Bryce
Brady, Nicholas W
Skelly, William
author_sort Cheppalli, Naga
collection PubMed
description An 81-year-old male patient who underwent a Medacta GMK sphere kinematically aligned (KA) total knee arthroplasty (TKA) for end-stage knee osteoarthritis presented with a dislocated medial pivot (MP) tibia polyethylene (PE) insert on routine six-week postoperative x-rays. The patient presented asymptomatic with a normal range of motion. Dissociation of a fixed-bearing (FB) PE implant is an uncommon complication after TKA. There are only a few cases reported in the literature. We report for the first time a case of non-traumatic dissociation of MP PE from the tibial baseplate in a KA TKA in an asymptomatic patient but identified on routine postoperative radiographs.
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spelling pubmed-88939342022-03-07 Dissociation of a Medial Pivot Polyethylene in a Kinematically Aligned Total Knee Arthroplasty Cheppalli, Naga Clinger, Bryce Brady, Nicholas W Skelly, William Cureus Radiology An 81-year-old male patient who underwent a Medacta GMK sphere kinematically aligned (KA) total knee arthroplasty (TKA) for end-stage knee osteoarthritis presented with a dislocated medial pivot (MP) tibia polyethylene (PE) insert on routine six-week postoperative x-rays. The patient presented asymptomatic with a normal range of motion. Dissociation of a fixed-bearing (FB) PE implant is an uncommon complication after TKA. There are only a few cases reported in the literature. We report for the first time a case of non-traumatic dissociation of MP PE from the tibial baseplate in a KA TKA in an asymptomatic patient but identified on routine postoperative radiographs. Cureus 2022-02-01 /pmc/articles/PMC8893934/ /pubmed/35261833 http://dx.doi.org/10.7759/cureus.21813 Text en Copyright © 2022, Cheppalli et al. https://creativecommons.org/licenses/by/3.0/This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Radiology
Cheppalli, Naga
Clinger, Bryce
Brady, Nicholas W
Skelly, William
Dissociation of a Medial Pivot Polyethylene in a Kinematically Aligned Total Knee Arthroplasty
title Dissociation of a Medial Pivot Polyethylene in a Kinematically Aligned Total Knee Arthroplasty
title_full Dissociation of a Medial Pivot Polyethylene in a Kinematically Aligned Total Knee Arthroplasty
title_fullStr Dissociation of a Medial Pivot Polyethylene in a Kinematically Aligned Total Knee Arthroplasty
title_full_unstemmed Dissociation of a Medial Pivot Polyethylene in a Kinematically Aligned Total Knee Arthroplasty
title_short Dissociation of a Medial Pivot Polyethylene in a Kinematically Aligned Total Knee Arthroplasty
title_sort dissociation of a medial pivot polyethylene in a kinematically aligned total knee arthroplasty
topic Radiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8893934/
https://www.ncbi.nlm.nih.gov/pubmed/35261833
http://dx.doi.org/10.7759/cureus.21813
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AT bradynicholasw dissociationofamedialpivotpolyethyleneinakinematicallyalignedtotalkneearthroplasty
AT skellywilliam dissociationofamedialpivotpolyethyleneinakinematicallyalignedtotalkneearthroplasty

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