Failure at the femoral stem extension-condylar interface in a rotating hinge knee without radiographic evidence of loosening.
Component disengagement
Femoral stem extension
Modular femoral component
Modular femoral stem failure
Revision knee arthroplasty
Journal
Arthroplasty today
ISSN: 2352-3441
Titre abrégé: Arthroplast Today
Pays: United States
ID NLM: 101681808
Informations de publication
Date de publication:
Mar 2020
Mar 2020
Historique:
received:
21
01
2019
revised:
04
10
2019
accepted:
05
11
2019
entrez:
27
3
2020
pubmed:
27
3
2020
medline:
27
3
2020
Statut:
epublish
Résumé
Modular stem extensions have become ubiquitous in revision total knee arthroplasty systems. Although stem extensions are valuable in addressing bone deficiencies and improving implant fixation, the stem extension-condylar interface may be a point of implant failure. We report a case of failure at the femoral stem extension-condylar interface in a Zimmer NexGen Rotating Hinge Knee (Zimmer, Warsaw, IN). Currently, several published case reports describe failure at the femoral stem extension-condylar interface but only 1 case describes loosening at a taper junction without evidence of set screw failure or taper fracture. Furthermore, no published cases describe this type of failure in the Zimmer NexGen Rotating Hinge Knee (Zimmer).
Identifiants
pubmed: 32211472
doi: 10.1016/j.artd.2019.11.002
pii: S2352-3441(19)30146-3
pmc: PMC7083710
doi:
Types de publication
Case Reports
Langues
eng
Pagination
36-40Informations de copyright
© 2019 The Authors.
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