The effect of agility ankle prosthesis misalignment on the peri-ankle ligaments

Clinical Orthopaedics and Related Research
C L SaltzmanT D Brown

Abstract

In the Agility total ankle replacement system, motion is constrained by the implant's articulating surfaces and the peri-ankle ligaments. The effects of plausibly occurring implant malpositioning on peri-ankle ligament functional extension during walking were explored in this study. The intent was to determine whether certain ligaments could serve as guides to assist in proper component positioning at implantation. Using a cadaver preparation with simulated physiologic motion and loading, we monitored change of ligament length of the anterior talofibular, posterior talofibular, calcaneofibular, and tibiocalcaneal ligaments resulting from controlled malpositioning of the tibial component relative to a neutral position. During a simulated walking cycle, effects of mediolateral and anterior/posterior translation, internal and external rotation, inversion and eversion, and elevation of the component were evaluated. In all cases, tibial component displacement from the neutral position caused atypical length change in one or more of the peri-ankle ligaments. In particular, anterior/posterior displacement significantly changed the lengthening behavior of all four tested ligaments. The anterior talofibular ligament was sensitive to tra...Continue Reading

References

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Citations

Jan 5, 2008·Foot & Ankle International·Martinus RichterThomas Gosling
May 7, 2015·Der Orthopäde·A BargG Pagenstert
Apr 10, 2009·Foot & Ankle International·Gregory P WitkowskiPaul T Fortin
May 20, 2015·Journal of Orthopaedic Surgery and Research·Matthias BraitoRainer Biedermann
Sep 3, 2020·Journal of Orthopaedics and Traumatology : Official Journal of the Italian Society of Orthopaedics and Traumatology·C FaldiniA Leardini
Feb 21, 2006·Foot & Ankle International·Yuki TochigiCharles L Saltzman
May 5, 2010·The Journal of Bone and Joint Surgery. American Volume·N EspinosaJ G Snedeker
Aug 3, 2016·Foot & Ankle International·Andrea VeljkovicAnnunziato Amendola
Oct 8, 2015·Foot & Ankle International·Federico G UsuelliEric W Tan
Jun 28, 2019·Foot & Ankle International·Guilherme H SaitoConstantine A Demetracopoulos
Sep 17, 2009·Foot & Ankle International·Richard J Claridge, Bernard H Sagherian
Sep 7, 2013·BMC Musculoskeletal Disorders·Keun-Bae LeeAndri Primadhi
Apr 28, 2019·Foot & Ankle International·Vu LeAndrea Veljkovic
Jun 24, 2020·Clinical Orthopaedics and Related Research·Brandt C BucknerBruce J Sangeorzan
May 28, 2017·Foot & Ankle International·Manja DeforthBeat Hintermann
Oct 1, 2019·The Journal of Bone and Joint Surgery. American Volume·Daniel A McKearneyWilliam R Ledoux
Apr 4, 2015·Deutsches Ärzteblatt International·Alexej BargVictor Valderrabano
Feb 6, 2021·Journal of Clinical Medicine·Faisal AlsayelVictor Valderrabano
Jan 1, 2021·HSS Journal : the Musculoskeletal Journal of Hospital for Special Surgery·Natalie M NielsenConstantine A Demetracopoulos
Mar 17, 2020·The Foot·Ali-Asgar NajefiAndy Goldberg

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