Force-controlled dynamic wear testing of total ankle replacements

Reinders, Joern; Stillfried, Falko von; Altan, Emel; Sonntag, Robert; Heitzmann, Daniel; Kretzer, Jan Philippe

doi:10.1016/j.actbio.2014.10.036

Cited by 7 publications

(4 citation statements)

References 89 publications

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“…The advent of modern total ankle replacement (TAR) led to an exponential increase in the use of this emerging technology over the past two decades in the United States and abroad (1,2) . Although mechanical and instrumental design has improved with recent designs (3,4) , perioperative skin and soft tissue complications remain a concern (5,6) .…”

Section: Introductionmentioning

confidence: 99%

Intramedullary nailing as osteosynthesis technique for the fibula in total ankle arthroplasty via lateral approach

Carrasco,

Dorado,

Martínez

et al. 2024

J Foot Ankle

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Objective: To describe a variation in the final osteosynthesis technique for total ankle replacement (TAR) implantation through lateralapproach. Methods: We retrospectively reviewed a series of cases dated between January 2022 and May 2023 in which intramedullary nailing was used as the osteosynthesis technique for the fibula during TAR implantation via lateral approach. Results: In all cases, skin scarring and soft tissue recovery to baseline were achieved in one and a half month to three months. Consolidation of the fibula occurred at an average of three months. No material was removed in any of the cases to date. Finally, patients were satisfied, resuming their previous activities. Conclusion: To our knowledge, this study is the first to investigate a modification of the osteosynthesis technique in the lateral approach to TAR. We believe the intramedullary nail for the fibula may be a useful tool to prevent soft tissue complications, requiring prospective and comparative studies to evaluate its efficacy. Level of Evidence IV; Therapeutic Studies; Case Series.

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Section: Introductionmentioning

confidence: 99%

Intramedullary nailing as osteosynthesis technique for the fibula in total ankle arthroplasty via lateral approach

Carrasco,

Dorado,

Martínez

et al. 2024

J Foot Ankle

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“…At the same time, an axial torque profile has been applied, allowing the components to rotate based on the constraints of the implant and simulated physiological constraints. 9,10 Recently, an ISO standard for TAR wear evaluation was published (ISO 22622). 11 This standard is similar to ISO 14243-3 12 for TKR wear evaluation in that both standards allow a displacementcontrolled method or, alternatively, a force-controlled method.…”

Section: Introductionmentioning

confidence: 99%

“…However, in few studies, an AP force profile has been applied, allowing the components to translate based on the constraints of the implant as well as simulated physiological constraints. At the same time, an axial torque profile has been applied, allowing the components to rotate based on the constraints of the implant and simulated physiological constraints 9,10 …”

Section: Introductionmentioning

confidence: 99%

Is load control necessary to produce physiological AP displacement and axial rotation in wear testing of TAR?

McCarty

Park

et al. 2020

Journal Orthopaedic Research

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The International Standard Organization, ISO 22622, specifies two options for joint wear simulator evaluation of total ankle replacements (TARs): load-controlled and displacement-controlled. In the present study, the load-controlled testing parameters were applied to cadaveric specimens to quantify and compare the observed sagittal translations and axial rotations to those specified under the displacementcontrolled option. Twelve cadaveric specimens were stripped of extraneous tissues, keeping surrounding ankle ligaments. A halo was used to produce plantarflexion and dorsiflexion of the talus through two screws, while a baseplate resisted axial loads. The axial force and torque were applied to the tibia and fibula under force and torque feedback control. An anterior-posterior force was applied to the tibia. Plantarflexion-dorsiflexion were applied using rotation control. To protect the cadaveric specimens, loads were applied at 50% of the specified load profile while plantarflexion-dorsiflexion rotation was applied as specified. There was variation among specimens in magnitudes of anterior-posterior displacement with peaks ranging from 3.3 mm posteriorly to 3.0 mm anteriorly. Likewise, there was variation among specimens in magnitude of axial rotation, with peaks ranging from 11°e xternal rotation to 4.5°internal rotation. However, the mean magnitudes of AP displacement and axial rotation did not exceed those specified by ISO 22622.

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“…The advent of modern total ankle replacements (TAR) has resulted in an exponential increase in utilization of this emerging technology over the past two decades in the United States and abroad. 22,25 Though instrumentation and prosthesis designs have exhibited improving sophistication from a mechanical perspective, [2][3][4]6,14,27 little has been examined concerning the management of the soft tissue at the time of index procedure. Although radiographic alignment, revision rate, disease or joint-specific patient-reported outcome measures and generic health related quality of life represent TAR's most tangible and targeted metrics of success, 13,21 wound complications remain its most devastating negative consequence, with amputation as the most feared sequela.…”

Section: Introductionmentioning

confidence: 99%