A functional outcome study comparing total ankle arthroplasty (TAA) subjects with pain to subjects with absent level of pain by means of videofluoroscopy

List, Renate; Gerber, Hans; Foresti, Mauro; Rippstein, Pascal; Goldhahn, Jörg

doi:10.1016/j.fas.2012.04.001

Cited by 11 publications

(9 citation statements)

References 40 publications

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“…To image complete, consecutive cycles of the knee joint during level walking, downhill walking and stair descent, the moving fluoroscope was employed to capture the relative movements of the femoral and tibial components with a measurement frequency of 25 Hz during the investigated gait activities . Detailed information about the videofluoroscopic image capture are provided in the literature …”

Section: Methodsmentioning

confidence: 99%

Kinematic Evaluation of the GMK Sphere Implant During Gait Activities: A Dynamic Videofluoroscopy Study

Schütz

Taylor

Postolka

et al. 2019

Journal Orthopaedic Research

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Joint stability is a primary concern in total knee joint replacement. The GMK Sphere prosthesis was specifically designed to provide medial compartment anterior–posterior (A–P) stability, while permitting rotational freedom of the joint through a flat lateral tibial surface. The objective of this study was to establish the changes in joint kinematics introduced by the GMK Sphere prosthesis during gait activities in comparison to conventional posterior‐stabilized (PS) fixed‐bearing and ultra‐congruent (UC) mobile‐bearing geometries. The A–P translation and internal/external rotation of three cohorts, each with 10 good outcome subjects (2.9 ± 1.6 years postop), with a GMK Sphere, GMK PS or GMK UC implant were analysed throughout complete cycles of gait activities using dynamic videofluoroscopy. The GMK Sphere showed the smallest range of medial compartment A–P translation for level walking, downhill walking, and stair descent (3.6 ± 0.9 mm, 3.1 ± 0.8 mm, 3.9 ± 1.3 mm), followed by the GMK UC (5.7 ± 1.0 mm, 8.0 ± 1.7 mm, 8.7 ± 1.9 mm) and the GMK PS (10.3 ± 2.2 mm, 10.1 ± 2.6 mm, 11.6 ± 1.6 mm) geometries. The GMK Sphere exhibited the largest range of lateral compartment A–P translation (12.1 ± 2.2 mm), and the largest range of tibial internal/external rotation (13.2 ± 2.2°), both during stair descent. This study has shown that the GMK Sphere clearly restricts A–P motion of the medial condyle during gait activities while still allowing a large range of axial rotation. The additional comparison against the conventional GMK PS and UC geometries, not only demonstrates that implant geometry is a key factor in governing tibio‐femoral kinematics, but also that the geometry itself probably plays a more dominant role for joint movement than the type of gait activity. © 2019 The Authors. Journal of Orthopaedic Research® published by Wiley Periodicals, Inc. on behalf of Orthopaedic Research Society. J Orthop Res 37:2337–2347, 2019

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Section: Methodsmentioning

confidence: 99%

Kinematic Evaluation of the GMK Sphere Implant During Gait Activities: A Dynamic Videofluoroscopy Study

Schütz

Taylor

Postolka

et al. 2019

Journal Orthopaedic Research

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“…Leszko et al [86] reported somewhat lower mean internal-external rotations of 5.9°by analyzing four isolated measuring points with fluoroscopic analysis during the stance phase of gait. Only small anterior-posterior translations below 2 mm are reported for most TAR patients [82,83,86]. Contrarily, Conti et al [83] reported anterior-posterior translations of up to 10.6 mm during walking.…”

Section: Wear Testmentioning

confidence: 94%

“…This study showed a mean range of 13.3°of internal-external rotations and a mean of 5.1 mm anterior-posterior translation. List et al [82] reported a mean internal-external rotation of $9.9°internal-external rotation during gait via video fluoroscopy. Leszko et al [86] reported somewhat lower mean internal-external rotations of 5.9°by analyzing four isolated measuring points with fluoroscopic analysis during the stance phase of gait.…”

Section: Wear Testmentioning

confidence: 98%

“…Gait analysis shows that no characteristic gait pattern for secondary motions of TAR patients exists [82][83][84][85][86]. Therefore, defining a characteristic gait pattern for wear testing is challenging.…”

Section: Wear Testmentioning

confidence: 99%

“…Comparable dorsal/plantar flexion data are reported for gait analysis of patients provided with other TAR designs [80][81][82]. A considerably higher flexion was assumed for displacement-controlled wear testing.…”

Section: Wear Testmentioning

confidence: 99%

See 2 more Smart Citations

Force-controlled dynamic wear testing of total ankle replacements

et al. 2015

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Achilles tendon moment arm changes with total ankle arthroplasty

Wade

Hickox

Lewis

et al. 2020

Journal Orthopaedic Research

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Prior research on total ankle arthroplasty (TAA) has focused on improvements in pain and function following the surgical treatment of ankle arthritis, but its effect on ankle joint mechanics has received relatively little attention. The plantarflexion moment arm of the Achilles tendon is a critical determinant of ankle function with the potential to be altered by TAA. Here we investigate the effect of TAA on Achilles tendon moment arm assessed using two methods. Standing sagittal‐plane radiographs were obtained for ten patients presurgery and postsurgery, from which anterior–posterior distance between the posterior calcaneus and the center of the talar dome was measured. Ultrasound imaging and three‐dimensional (3D) motion capture were used to obtain moment arm pre‐ and post‐TAA. The absolute changes in moment arm pre‐ to post‐TAA were significantly different from zero for both methods (9.6 mm from ultrasound and 4.6% of the calcaneus length from radiographs). Only 46% of the variance in postoperative 3D Achilles tendon moment arm was explained by the preoperative value (r2 = 0.460; p = .031), while pre‐ and post‐TAA values from radiographs were not correlated (r2 = 0.192, p = .206). While we did not find significant mean differences in Achilles tendon moment arm between pre‐ and post‐TAA, we did find absolute changes in 3D moment arm that were significantly different from zero and these changes were partially explained by a change in location of the talar dome as indicated by measurements from radiographs (r2 = 0.497, p = .023).

show abstract

A functional outcome study comparing total ankle arthroplasty (TAA) subjects with pain to subjects with absent level of pain by means of videofluoroscopy

Cited by 11 publications

References 40 publications

Kinematic Evaluation of the GMK Sphere Implant During Gait Activities: A Dynamic Videofluoroscopy Study

Kinematic Evaluation of the GMK Sphere Implant During Gait Activities: A Dynamic Videofluoroscopy Study

Force-controlled dynamic wear testing of total ankle replacements

Achilles tendon moment arm changes with total ankle arthroplasty

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