Friction properties of the interface between porous‐surfaced metals and tibial cancellous bone

Rancourt, Denis; Shirazi-Adl, A.; Drouin, Guy; Paiement, Guy D.

doi:10.1002/jbm.820241107

Cited by 129 publications

(73 citation statements)

References 13 publications

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“…The potential influence of tilting of the bone plug and consecutive friction was estimated, assuming a coefficient of friction of 0.3 for smooth metal on bone interfaces. 13 It was calculated that tilting by 108 would decrease the tensile force effectively measured by approximately 5%, and a tilt angle of 208 would cause an 11% reduction.…”

Section: Validation Of the Setupmentioning

confidence: 99%

Tensile forces at the porcine anterior meniscal horn attachment

Stärke

Kopf

Gröbel

et al. 2009

Journal Orthopaedic Research

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Tibiofemoral compression causes circumferential tension in the knee meniscus, which is transferred to the tibial bone at the anterior and posterior attachments. The objective of the study was to measure the resulting tensile forces at the horn attachment in a porcine model. The anterior horn attachment of the porcine medial meniscus (n ¼ 10) was separated from the surrounding bone with a core reamer. A force transducer was installed such that tensile forces acting upon the now mobile horn attachment could be measured. The tibiofemoral joint was loaded in compression, starting at a preload of 30 N, with three 150-N increments, giving 180, 330, and 480 N load. Flexion angles of 0, 30, and 608 were investigated. The average resultant tension at the horn attachment was 26.3, 40.6, and 55.4 N with full extension, 29.2, 47.8, and 62.2 N at 308 flexion and 30.1, 49.6, and 68.1 N at 608 flexion. The tibiofemoral compression had a significant effect on the tension (p < 0.001), whereas no influence of the flexion angle was found (p ¼ 0.291). The study demonstrates that tibiofemoral compressive loads cause considerable tensile forces at the anterior meniscal horn attachment. The data are of interest for models of the repair or replacement of the knee menisci. ß

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Section: Validation Of the Setupmentioning

confidence: 99%

Tensile forces at the porcine anterior meniscal horn attachment

Stärke

Kopf

Gröbel

et al. 2009

Journal Orthopaedic Research

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“…The implant-bone interface is modelled by surface-surface contact algorithm with Coulomb's model of friction. The value of static friction coefficient was set to 0.3 (Rancourt et al 1990). The geometry and displacement field were approximated by the finite elements with linear basis function on fourth node tetrahedral simplexes (MSC.…”

Section: Methodsmentioning

confidence: 99%

Stress and fatigue analysis of cantilevered bridge during biting: a computer study

Henyš

Ackermann

Čapek

et al. 2017

Computer Methods in Biomechanics and Biomedical Engineering

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“…Mapped hexahedral elements were used for the remodelling bone regions, and tetrahedral elements were used for practicality, in the proximal region of the implant and the excised femoral head and neck. A contact pair was defined between the stem and supporting bone, and assigned a coefficient of static friction of 0.5 (Rancourt et al 1990).…”

Section: Computational Modelling Processmentioning

confidence: 99%

Activity intensity, assistive devices and joint replacement influence predicted remodelling in the proximal femur

Dickinson

2015

Biomech Model Mechanobiol

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Bone morphology and density changes are commonly observed following joint replacement, and may contribute to the risks of implant loosening and periprosthetic fracture, and reduce the available bone stock for revision surgery. This study was presented in the "Bone and Cartilage Mechanobiology across the scales" WCCM symposium to review the development of remodelling prediction methods and to demonstrate simulation of adaptive bone remodelling around hip replacement femoral components, incorporating intrinsic (prosthesis) and extrinsic (activity and loading) factors.An iterative bone remodelling process was applied to finite element models of a femur implanted with a cementless THR (total hip replacement) and a hip resurfacing implant. Previously developed for a cemented THR implant, this modified process enabled the influence of pre-to postoperative changes in patient activity and joint loading to be evaluated. A control algorithm used identical pre-and postoperative conditions, and the predicted extents and temporal trends of remodelling were measured by generating virtual x-rays and DXA scans.The modified process improved qualitative and quantitative remodelling predictions for both the cementless THR and resurfacing implants, but demonstrated the sensitivity to DXA scan region definition and appropriate implant-bone position and sizing. Predicted remodelling in the intact femur in response to changed activity and loading demonstrated that in this simplified model, although the influence of the extrinsic effects were important, the mechanics of implantation were dominant. This study supports the application of predictive bone remodelling as one element in the range of physical and computational studies, which should be conducted in the pre-clinical evaluation of new prostheses.

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Friction properties of the interface between porous‐surfaced metals and tibial cancellous bone

Cited by 129 publications

References 13 publications

Tensile forces at the porcine anterior meniscal horn attachment

Tensile forces at the porcine anterior meniscal horn attachment

Stress and fatigue analysis of cantilevered bridge during biting: a computer study

Activity intensity, assistive devices and joint replacement influence predicted remodelling in the proximal femur

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