scholarly journals Dual-Mobility Implants and Constrained Liners in Revision Total Hip Arthroplasty

2022 ◽  
Vol 13 ◽  
pp. 8-12
Author(s):  
Emanuele Chisari ◽  
Blair Ashley ◽  
Ryan Sutton ◽  
Garrett Largoza ◽  
Marco Di Spagna ◽  
...  
2018 ◽  
Vol 43 (10) ◽  
pp. 2245-2251 ◽  
Author(s):  
Chahine Assi ◽  
Jacques Caton ◽  
Wissam Fawaz ◽  
Camille Samaha ◽  
Kaissar Yammine

2019 ◽  
pp. 112070001987361 ◽  
Author(s):  
Jesús Moreta ◽  
Iker Uriarte ◽  
Xabier Foruria ◽  
Ioar Urra ◽  
Urko Aguirre ◽  
...  

Background: Cementation of polyethylene liners into well-fixed cementless metal shells has become an option during revision total hip arthroplasty (THA). We report the results of cementing a dual-mobility (DM) component into a stable acetabular shell in high-risk patients undergoing revision THA. Methods: A single-centre series of 10 patients undergoing revision THA with a DM cup cemented into an existing well-fixed shell between 2012 and 2016 were retrospectively reviewed. Failure due to aseptic loosening or instability and implant survival at last follow-up were analysed. The average age was 79.2 years and mean follow-up was 3.5 years. Indications were recurrent hip dislocation in 8 cases and intraoperative instability with moderate abductor insufficiency in 2 cases. In cases with recurrent dislocation, the aetiology of instability was classified by Wera type. Results: At the latest follow-up, Harris Hip Scores had improved from 49.3 preoperatively to 71.3 postoperatively ( p = 0.098). In the 8 patients with recurrent dislocation, 4 cases (50%) had an unclear aetiology (Wera type 6), 2 (25%) abductor deficiency (Wera type 3) and 2 (25%) late polyethylene wear (type 5). Postoperative recurrent dislocation occurred in 1 hip (10%). No cases of intraprosthetic dislocation, aseptic loosening of the previous shell or dissociation at the cement-cup interface were identified. Conclusion: Although the follow-up of this series is short, cementation of a DM cup into a previous well-fixed socket seems to be a viable option to treat and prevent instability after revision THA, without providing constraint at the cement-cup interface.


2018 ◽  
Vol 02 (02) ◽  
pp. 088-091 ◽  
Author(s):  
Perry Evangelista ◽  
Kamil Okroj ◽  
Darren Plummer ◽  
Craig Della Valle ◽  
Ran Schwarzkopf

AbstractDislocation is among the most commonly reported complications following revision total hip arthroplasty. Dual-mobility bearings may lower the risk of dislocation. The authors report the results of a multicenter study evaluating the use of a dual-mobility acetabular cup design that was cemented into a metal shell as part of complex acetabular reconstructions or in cases where the risk of dislocation was felt to be high, such as isolated bearing exchanges. Eighteen patients were identified for being at high risk of dislocation who underwent cementation of a dual-mobility shell that is specifically made for cementation, into a fully porous metal revision acetabular cup (10 patients) or into a well-fixed cup at the time of revision without removal of the existing acetabular component (eight patients). Patients were assessed clinically and radiographically at a minimum of 2 years for the evidence of dislocation, revision surgery, and implant loosening. At a mean of 36 months (range, 25–56 months), one patient died and one was lost to follow-up. There were no known cases of hip dislocation. There was one repeat revision, for a deep infection treated with irrigation and debridement. The mean preoperative Harris Hip Score of 46 (range, 40–79) improved to a mean of 65 points (range, 41–97) at the most recent evaluation. Acetabular components were retained in 8 out of 18 cases and the dual-mobility shell was cemented into it. Cementation of a dual-mobility cup into a shell at the time of a revision surgery is a safe and reliable construct at minimum of 2 years for patients at high risk of dislocation. There were no complications related to the cementation of the cup into the metal shell. Longer follow-up is required to further assess the durability of this construct.


2019 ◽  
Vol 34 (7) ◽  
pp. S287-S291 ◽  
Author(s):  
Ronald C. Huang ◽  
Art L. Malkani ◽  
Steven F. Harwin ◽  
William J. Hozack ◽  
Michael A. Mont ◽  
...  

2020 ◽  
Vol 35 (2) ◽  
pp. 513-519 ◽  
Author(s):  
Gary Sayac ◽  
Thomas Neri ◽  
Loïc Schneider ◽  
Rémi Philippot ◽  
Frédéric Farizon ◽  
...  

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