Unconstrained tripolar implants for primary total hip arthroplasty in patients at risk for dislocation.

Details

Serval ID
serval:BIB_84F4B94EA081
Type
Article: article from journal or magazin.
Collection
Publications
Title
Unconstrained tripolar implants for primary total hip arthroplasty in patients at risk for dislocation.
Journal
Journal of Arthroplasty
Author(s)
Guyen O., Pibarot V., Vaz G., Chevillotte C., Carret J.P., Bejui-Hugues J.
ISSN
0883-5403 (Print)
ISSN-L
0883-5403
Publication state
Published
Issued date
2007
Volume
22
Number
6
Pages
849-858
Language
english
Notes
Publication types: Journal ArticlePublication Status: ppublish
Abstract
We performed a retrospective study on 167 primary total hip arthroplasty (THA) procedures in 163 patients at high risk for instability to assess the reliability of unconstrained tripolar implants (press-fit outer metal shell articulating a bipolar polyethylene component) in preventing dislocations. Eighty-four percent of the patients had at least 2 risk factors for dislocation. The mean follow-up length was 40.2 months. No dislocation was observed. Harris hip scores improved significantly. Six hips were revised, and no aseptic loosening of the cup was observed. The tripolar implant was extremely successful in achieving stability. However, because of the current lack of data documenting polyethylene wear at additional bearing, the routine use of tripolar implants in primary THA is discouraged and should be considered at the present time only for selected patients at high risk for dislocation and with limited activities.
Keywords
Adult, Aged, Aged, 80 and over, Arthroplasty, Replacement, Hip/instrumentation, Female, Follow-Up Studies, Hip Dislocation/prevention & control, Humans, Male, Middle Aged, Postoperative Complications/prevention & control, Prostheses and Implants, Prosthesis Failure, Retrospective Studies, Risk Factors
Pubmed
Web of science
Create date
26/08/2014 18:57
Last modification date
20/08/2019 14:44
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