Results of Total Ankle Arthroplasty

Easley, Mark E.; Adams, Samuel B.; Hembree, Walter C; DeOrio, James K.

doi:10.2106/jbjs.j.00126

Cited by 191 publications

(162 citation statements)

References 84 publications

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“…The implant survival rate of total ankle replacement (TAR) is only 70-98% at 5-6 years, 80-95% at 8-10 years (Easley et al, 2011), and can drop to 45% at 15 years (Brunner et al, 2013). Failure causes include aseptic loosening, subsidence, cysts formation, peri-prosthetic and polyethylene fracture (Conti and Wong, 2001;Besse et al, 2009;Bonnin et al, 2011;Labek et al, 2011;Brunner et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Development and experimental validation of a finite element model of total ankle replacement

Terrier

Larrea

Guerdat

et al. 2014

Journal of Biomechanics

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a b s t r a c tTotal ankle replacement remains a less satisfactory solution compared to other joint replacements. The goal of this study was to develop and validate a finite element model of total ankle replacement, for future testing of hypotheses related to clinical issues. To validate the finite element model, an experimental setup was specifically developed and applied on 8 cadaveric tibias. A non-cemented press fit tibial component of a mobile bearing prosthesis was inserted into the tibias. Two extreme anterior and posterior positions of the mobile bearing insert were considered, as well as a centered one. An axial force of 2 kN was applied for each insert position. Strains were measured on the bone surface using digital image correlation. Tibias were CT scanned before implantation, after implantation, and after mechanical tests and removal of the prosthesis. The finite element model replicated the experimental setup. The first CT was used to build the geometry and evaluate the mechanical properties of the tibias. The second CT was used to set the implant position. The third CT was used to assess the bone-implant interface conditions. The coefficient of determination (R-squared) between the measured and predicted strains was 0.91. Predicted bone strains were maximal around the implant keel, especially at the anterior and posterior ends. The finite element model presented here is validated for future tests using more physiological loading conditions.

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Section: Introductionmentioning

confidence: 99%

Development and experimental validation of a finite element model of total ankle replacement

Terrier

Larrea

Guerdat

et al. 2014

Journal of Biomechanics

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“…However, while some studies report encouraging mid-term results, the rate of complications after TAA is high compared to total hip and knee replacement [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Complication rates after total ankle arthroplasty in one hundred consecutive prostheses

Noelle

Egidy

Cross

et al. 2013

International Orthopaedics (SICOT)

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Introduction Total ankle arthroplasty is increasingly used as an alternative to arthrodesis to treat advanced ankle arthritis. However, the outcomes and postoperative complications are poorly described. Patients and methods Between March 2005 and May 2010 114 S.T.A.R. prostheses were implanted by one surgeon at our institution. We retrospectively analysed the demographics, clinical outcomes and radiographic characteristics of 100 ankle prostheses (97 patients).Results The average follow up was 36 months. The average preoperative AOFAS score of 36.87 (22-58) significantly increased to 75.99 postoperative. A total of 87 % of the patients reported a better life quality. Twenty-seven ankles incurred complications after primary surgery, and 21 prostheses required revision surgery, including four patients who required arthrodesis. Conclusion Our study shows a high satisfaction rate after total ankle replacement and clear pain relief. Patients with a body mass Index higher than 30 showed a higher rate of complications. Compared with ankle fusion, the rates of complications are comparable.

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“…5 almost all used TARs are fixed bearing two-components implants (Easley et al 2011). At the moment, there are no clear reported clinical advantages of one over the other (Daniels et al 2014;Gaudot et al 2014;Roukis and Elliott 2015), even if a tendency towards lower revision rates associated with fixed bearing implants has been identified (Gaudot et al 2014;Roukis and Elliott 2015).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…They reported rates of revision per 100 observed component years to be 1.29 for THR, 1.26 for TKR and 3.29 for TAR. Cumulatively seen this corresponds to revision rates that are slightly higher than 10% after 10 years for THR and TKR, whereas revision surgery is expected by approximately one-third of all TAR patients after 10 years (Fevang et al 2007;Besse et al 2009;Easley et al 2011;Brunner et al 2013;Zaidi et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Fixed and mobile-bearing total ankle prostheses: Effect on tibial bone strain

Terrier

Fernandes

Guillemin

et al. 2017

Clinical Biomechanics

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Please cite this article as: Alexandre Terrier, Caroline Sieger Fernandes, Maïka Guillemin, Xavier Crevoisier , Fixed and mobile-bearing total ankle prostheses: Effect on tibial bone strain, Clinical Biomechanics (2017Biomechanics ( ), doi: 10.1016Biomechanics ( /j.clinbiomech.2017 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPTA C C E P T E D M A N U S C R I P T 3 AbstractBackground Total ankle replacement is associated to a high revision rate. To improve

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Results of Total Ankle Arthroplasty

Cited by 191 publications

References 84 publications

Development and experimental validation of a finite element model of total ankle replacement

Development and experimental validation of a finite element model of total ankle replacement

Complication rates after total ankle arthroplasty in one hundred consecutive prostheses

Fixed and mobile-bearing total ankle prostheses: Effect on tibial bone strain

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