Mechanics of the ankle and subtalar joints revealed through a 3D quasi-static stress MRI technique

Siegler, Sorin; Udupa, Jayaram K.; Ringleb, Stacie I.; Imhauser, Carl W.; Hirsch, Bruce Elliot; Odhner, Dewey; Saha, Punam K.; Okereke, Enyi; Roach, Neil

doi:10.1016/j.jbiomech.2004.03.036

Cited by 91 publications

(73 citation statements)

References 31 publications

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“…The eccentric cases simulated here covered reported extreme displacements of the mobile-bearing insert (Siegler et al, 2005;Reggiani et al, 2006;Leszko et al, 2008). The main limitation of the model was the use of non-fresh cadaveric bone, which were perfused and conserved 4 years in a formaldehyde solution.…”

Section: Discussionmentioning

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: Discussionmentioning

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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“…20 Other investigators, using a variety of techniques, have studied ankle joint complex (AJC) kinematics both in vitro and in vivo. [8][9][10][11][12][13]18,19,[21][22][23][24][25] A direct comparison of results between techniques, however, is difficult because of differing test conditions and measurement Table 3. Range of Motion of the AJC, Talocrural, and Subtalar Joints during the Stance Phase of Walking Numbers in italics show significant difference between the motion of the talocrural and subtalar joints.…”

Section: Discussionmentioning

confidence: 99%

“…[15][16][17][18][19] These techniques offer three-dimensional (3D) quantification of in vivo morphology and positions of the AJC without using invasive markers. With these techniques however, the joint must be fixed in one position during CT or MR scanning, limiting the flexibility of the techniques to study various functional activities of the ankle.…”

Section: Introductionmentioning

confidence: 99%

Six DOF in vivo kinematics of the ankle joint complex: Application of a combined dual‐orthogonal fluoroscopic and magnetic resonance imaging technique

Wan

Rubash

et al. 2006

Journal Orthopaedic Research

148

128

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Accurate knowledge of in vivo ankle joint complex (AJC) biomechanics is critical for understanding AJC disease states and for improvement of surgical treatments. This study investigated 6 degrees-of-freedom (DOF) in vivo kinematics of the human AJC using a combined dual-orthogonal fluoroscopic and magnetic resonance imaging (MRI) technique. Five healthy ankles of living subjects were studied during three in vivo activities of the foot, including maximum plantarflexion and dorsiflexion, maximum supination and pronation, and three weight-bearing positions in simulated stance phases of walking. A three-dimensional (3D) computer model of the AJC (including tibia, fibula, talus, and calcaneus) was constructed using 3D MR images of the foot. The in vivo AJC position at each selected position of the foot was captured using two orthogonally positioned fluoroscopes. In vivo AJC motion could then be reproduced by coupling the orthogonal images with the 3D AJC model in a virtual dual-orthogonal fluoroscopic system. From maximum dorsiflexion to plantarflexion, the arc of motion of the talocrural joint (47.5 AE 2.28) was significantly larger than that of the subtalar joint (3.1 AE 6.88). Both joints showed similar degrees of internalexternal and inversion-eversion rotation. From maximum supination to pronation, all rotations and translations of the subtalar joint were significantly larger than those of the talocrural joint. From heel strike to midstance, the plantarflexion contribution from the talocrural joint (9.1 AE 5.38) was significantly larger than that of the subtalar joint (À0.9 AE 1.28). From midstance to toe off, internal rotation and inversion of the subtalar joint (12.3 AE 8.38 and À10.7 AE 3.88, respectively) were significantly larger than those of the talocrural joint (À1.6 AE 5.98 and À1.7 AE 2.78). Strong kinematic coupling between the talocrural and subtalar joints was observed during in vivo AJC activities. The contribution of the talocrural joint to active dorsi-plantarflexion was higher than that of the subtalar joint, whereas the contribution of the subtalar joint to active supination-pronation was higher than that of the talocrural joint. In addition, the talocrural joint demonstrated larger motion during the early part of stance phase while the subtalar joint contributes more motion during the later part of stance phase. The results add quantitative data to an in vivo database of normals that can be used in clinical diagnosis, treatment, and evaluation of the AJC after injuries. ß

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“…Besides, since we had no information about the donor, we applied the same loading to all tibias, which is certainly not fully consistent with real life. The eccentric case simulated here covered reported extreme displacements of the mobile bearing (Siegler et al 2005;Reggiani et al 2006;Leszko et al 2008). …”

Section: Discussionmentioning

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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Mechanics of the ankle and subtalar joints revealed through a 3D quasi-static stress MRI technique

Cited by 91 publications

References 31 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

Six DOF in vivo kinematics of the ankle joint complex: Application of a combined dual‐orthogonal fluoroscopic and magnetic resonance imaging technique

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

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