Determinants of the primary stability of cementless acetabular cup implants: A 3D finite element study

Immel, Katharina; Nguyen, Vu‐Hieu; Dubory, Arnaud; Flouzat-Lachaniette, Charles-Henri; Sauer, Roger A.; Haïat, Guillaume

doi:10.1016/j.compbiomed.2021.104607

Cited by 9 publications

(7 citation statements)

References 47 publications

(196 reference statements)

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“…This is in accordance with a previous study (Immel et al. 2021a ) and findings in the literature (Anderson et al. 2005 ; Phillips et al.…”

Section: Application To Acetabular Cup Implantssupporting

confidence: 94%

“… 2019 ; Immel et al. 2020 , 2021a ), a quasi-static configuration was considered, and all dynamic aspects were neglected, similarly to what was done in comparable works (Spears et al. 2001 ; Le Cann et al.…”

Section: Discussionmentioning

confidence: 99%

“…( 2019 ) and Immel et al. ( 2021a ). However, the aforementioned works only considered primary stability.…”

Section: Application To Acetabular Cup Implantsmentioning

confidence: 95%

“… 2019 ; Immel et al. 2021a ). The downward displacement attained at the top of the ancillary for N is denoted .…”

Section: Application To Acetabular Cup Implantsmentioning

confidence: 99%

“…( 2019 ) and Immel et al. ( 2021a ) is considered herein and is briefly summarized in the following. An idealized bone block with the same properties as in Raffa et al.…”

Section: Application To Acetabular Cup Implantsmentioning

confidence: 99%

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Modeling the debonding process of osseointegrated implants due to coupled adhesion and friction

Immel

Nguyen

Haïat

et al. 2022

Biomech Model Mechanobiol

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Cementless implants have become widely used for total hip replacement surgery. The long-term stability of these implants is achieved by bone growing around and into the rough surface of the implant, a process called osseointegration. However, debonding of the bone–implant interface can still occur due to aseptic implant loosening and insufficient osseointegration, which may have dramatic consequences. The aim of this work is to describe a new 3D finite element frictional contact formulation for the debonding of partially osseointegrated implants. The contact model is based on a modified Coulomb friction law by Immel et al. (2020), that takes into account the tangential debonding of the bone-implant interface. This model is extended in the direction normal to the bone-implant interface by considering a cohesive zone model, to account for adhesion phenomena in the normal direction and for adhesive friction of partially bonded interfaces. The model is applied to simulate the debonding of an acetabular cup implant. The influence of partial osseointegration and adhesive effects on the long-term stability of the implant is assessed. The influence of different patient- and implant-specific parameters such as the friction coefficient $$\mu _\text {b}$$ μ b , the trabecular Young’s modulus $$E_\text {b}$$ E b , and the interference fit $$I\!F$$ I F is also analyzed, in order to determine the optimal stability for different configurations. Furthermore, this work provides guidelines for future experimental and computational studies that are necessary for further parameter calibration.

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“…This is in accordance with a previous study (Immel et al. 2021a ) and findings in the literature (Anderson et al. 2005 ; Phillips et al.…”

Section: Application To Acetabular Cup Implantssupporting

confidence: 94%

Section: Discussionmentioning

confidence: 99%

“…( 2019 ) and Immel et al. ( 2021a ). However, the aforementioned works only considered primary stability.…”

Section: Application To Acetabular Cup Implantsmentioning

confidence: 95%

“… 2019 ; Immel et al. 2021a ). The downward displacement attained at the top of the ancillary for N is denoted .…”

Section: Application To Acetabular Cup Implantsmentioning

confidence: 99%

“…( 2019 ) and Immel et al. ( 2021a ) is considered herein and is briefly summarized in the following. An idealized bone block with the same properties as in Raffa et al.…”

Section: Application To Acetabular Cup Implantsmentioning

confidence: 99%

See 3 more Smart Citations

Modeling the debonding process of osseointegrated implants due to coupled adhesion and friction

Immel

Nguyen

Haïat

et al. 2022

Biomech Model Mechanobiol

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Influence of sidewall retention and interference fit in total ankle replacement on implant‐bone micromotion: A finite element study

Johnson,

Clarke,

de Cesar Netto

et al. 2024

Journal Orthopaedic Research

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The success of uncemented total ankle replacement (TAR) is linked to initial stability because bony ingrowth depends upon limited early micromotion. Tibial implant design fixation features resist micromotion aided by bony sidewall retention and interference fit. Our goal was to investigate factors influencing implant‐bone micromotion in TAR. Two TAR tibial components were virtually inserted into CT‐derived computer models of two distal tibias from patients with end‐stage ankle arthritis. Density‐based inhomogeneous material assignment was used to model bone compaction during press‐fit. Finite element analysis (FEA) was used to simulate three fixation cases: (1) no sidewalls + line‐to‐line fit, (2) sidewalls + line‐to‐line fit, and (3) sidewalls + 50, 100, or 200 µm interference fit. Kinetic profiles from the stance phase of gait were simulated and micromotions computed from FEA output. Without sidewalls or interference fit, micromotions were largest in early and late stance, with largest micromotions (averaging ~150–250 µm) observed near heel strike. Micromotions decreased 39%–62% when sidewalls were retained. When interference fit was also modeled, micromotions decreased another 37%–61% to ~10 µm. Micromotion differences between patients persisted with sidewall retention but largely disappeared with interference fit. This study presents new insights into the effects of TAR fixation features on implant‐bone micromotion. Stability appeared to be influenced by surrounding bone quality, but this influence was greatly diminished when interference fit was introduced. More complete understanding of TAR implant features and performance is needed, but our results show the importance of bone quality and interference fit in the stability of uncemented TAR.

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Influence of the biomechanical environment on the femoral stem insertion and vibrational behavior: a 3-D finite element study

Poudrel

Nguyen²,

Rosi³

et al. 2022

Biomech Model Mechanobiol

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Determinants of the primary stability of cementless acetabular cup implants: A 3D finite element study

Cited by 9 publications

References 47 publications

Modeling the debonding process of osseointegrated implants due to coupled adhesion and friction

Modeling the debonding process of osseointegrated implants due to coupled adhesion and friction

Influence of sidewall retention and interference fit in total ankle replacement on implant‐bone micromotion: A finite element study

Influence of the biomechanical environment on the femoral stem insertion and vibrational behavior: a 3-D finite element study

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