Dissociation of Modular Total Hip Arthroplasty at the Neck-stem Interface: A Unique but Possible Complication

 Mechanical failure of total hip arthroplasty (THA) is often related to dislocation of the hip. In hip arthroplasty with a dual-modularity prosthesis, the surgeon has to face the unique disadvantage of the dissociation of its components. Most cases reported are related to the dissociation of the nec...

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Autores principales: Trellopoulos, Angelos, Angelis, Stavros, Komnos, George, Avramidis, Grigorios, Gikas, Euaggelos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cureus 2019
Materias:
Orthopedics
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6886736/
https://www.ncbi.nlm.nih.gov/pubmed/31807396
http://dx.doi.org/10.7759/cureus.5556
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author Trellopoulos, Angelos
Angelis, Stavros
Komnos, George
Avramidis, Grigorios
Gikas, Euaggelos
author_facet Trellopoulos, Angelos
Angelis, Stavros
Komnos, George
Avramidis, Grigorios
Gikas, Euaggelos
author_sort Trellopoulos, Angelos
collection PubMed
description  Mechanical failure of total hip arthroplasty (THA) is often related to dislocation of the hip. In hip arthroplasty with a dual-modularity prosthesis, the surgeon has to face the unique disadvantage of the dissociation of its components. Most cases reported are related to the dissociation of the neck-head interface and only an extremely small percentage is due to dissociation at the neck-stem interface. We report a case with dissociation at the neck-stem interface generated by a fall. Possible reasons for dissociation of the modular system are presented. An open reduction using the same neck system was performed. We suggest that surgeons should be aware of this particular problem, which is related to the nature of the system.
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spelling pubmed-68867362019-12-05 Dissociation of Modular Total Hip Arthroplasty at the Neck-stem Interface: A Unique but Possible Complication Trellopoulos, Angelos Angelis, Stavros Komnos, George Avramidis, Grigorios Gikas, Euaggelos Cureus Orthopedics  Mechanical failure of total hip arthroplasty (THA) is often related to dislocation of the hip. In hip arthroplasty with a dual-modularity prosthesis, the surgeon has to face the unique disadvantage of the dissociation of its components. Most cases reported are related to the dissociation of the neck-head interface and only an extremely small percentage is due to dissociation at the neck-stem interface. We report a case with dissociation at the neck-stem interface generated by a fall. Possible reasons for dissociation of the modular system are presented. An open reduction using the same neck system was performed. We suggest that surgeons should be aware of this particular problem, which is related to the nature of the system. Cureus 2019-09-02 /pmc/articles/PMC6886736/ /pubmed/31807396 http://dx.doi.org/10.7759/cureus.5556 Text en Copyright © 2019, Trellopoulos et al. http://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 Orthopedics
Trellopoulos, Angelos
Angelis, Stavros
Komnos, George
Avramidis, Grigorios
Gikas, Euaggelos
Dissociation of Modular Total Hip Arthroplasty at the Neck-stem Interface: A Unique but Possible Complication
title Dissociation of Modular Total Hip Arthroplasty at the Neck-stem Interface: A Unique but Possible Complication
title_full Dissociation of Modular Total Hip Arthroplasty at the Neck-stem Interface: A Unique but Possible Complication
title_fullStr Dissociation of Modular Total Hip Arthroplasty at the Neck-stem Interface: A Unique but Possible Complication
title_full_unstemmed Dissociation of Modular Total Hip Arthroplasty at the Neck-stem Interface: A Unique but Possible Complication
title_short Dissociation of Modular Total Hip Arthroplasty at the Neck-stem Interface: A Unique but Possible Complication
title_sort dissociation of modular total hip arthroplasty at the neck-stem interface: a unique but possible complication
topic Orthopedics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6886736/
https://www.ncbi.nlm.nih.gov/pubmed/31807396
http://dx.doi.org/10.7759/cureus.5556
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