Computational modelling of bone cement polymerization: Temperature and residual stresses

Pérez, M.Á.; Nuño, Natalia; Mądrala, A.; García-Aznar, J.M.; Doblaré, M.

doi:10.1016/j.compbiomed.2009.06.002

Cited by 22 publications

(16 citation statements)

References 30 publications

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“…Cement residual stresses were computed by reducing the temperature of the cement mantle uniformly; this is a simplification of reality, as has been observed experimentally 38 and computationally. 23,44 Bone resorption due to stress shielding was not taken into account, which may also influence the debonding of the bone-cement interface at least in the short-term. 2 Most of the stress shielding effect took place during the first year after implantation.…”

Section: Discussionmentioning

confidence: 99%

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Comparative Finite Element Analysis of the Debonding Process in Different Concepts of Cemented Hip Implants

Pérez

Palacios

2010

Ann Biomed Eng

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Damage accumulation in the cement mantle and debonding of the bone-cement interface are basic events that contribute to the long-term failure of cemented hip reconstructions. In this work, a numerical study with these two process coupled is presented. Previously uniform bone-cement interface mechanical properties were only considered. In this work, a new approach assuming nonuniform and random bone-cement interface mechanical properties was applied to investigate its effect on cement degradation. This methodology was also applied to simulate and compare the degradation process of the cement and bone-cement interface in three different concepts of design: Exeter, Charnley, and ABG II stems. Nonuniform and random mechanical properties of the bone-cement interface implied a simulation closer to reality. The predicted results showed that the cement deterioration and bone-cement interface debonding is different for each implant depending on the stem geometry. Lower cement deterioration was obtained for the Charnley stem and lower bone-cement interface debonding was predicted for the Exeter stem, while the highest deterioration (cement and bone-cement interface) was produced for the ABG II stem.

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Section: Discussionmentioning

confidence: 99%

“…The methodology proposed includes not only damage of bone-cement interface and cement, but also the residual stresses produced during cement polymerization. 23,38,44 …”

Section: Introductionmentioning

confidence: 98%

Comparative Finite Element Analysis of the Debonding Process in Different Concepts of Cemented Hip Implants

Pérez

Palacios

2010

Ann Biomed Eng

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“…21 The Cartesian coordinate system components x, y and z directions were along the body direction of medial to lateral, posterior to anterior and distal to proximal directions, respectively. The femur was fixed at the end (femoral end at the knee joint), [22][23][24] and perfect bonding was considered between the bone and cement. 22,23,25 Here, the interaction between the femoral prosthesis and cement was defined as surface-to-surface contact with a small sliding and friction coefficient of 0.3.…”

Section: Boundary Conditions Of Implanted Femurmentioning

confidence: 99%

“…The femur was fixed at the end (femoral end at the knee joint), [22][23][24] and perfect bonding was considered between the bone and cement. 22,23,25 Here, the interaction between the femoral prosthesis and cement was defined as surface-to-surface contact with a small sliding and friction coefficient of 0.3. 20,22,23,25 Mesh property of implanted femur…”

Section: Boundary Conditions Of Implanted Femurmentioning

confidence: 99%

Internal–external circumferential crack behaviour in the cement layer of total hip replacement

Oshkour

Osman

Yau

et al. 2013

Fatigue Fract Eng Mat Struct

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This study aimed to investigate crack behaviour at the internal and external surfaces of the cement layer in total hip replacement. A three‐dimensional model of the femur with the cemented prosthesis was developed and analysed. Cracks were placed on the internal, external and both internal and external surfaces of the cement layer. Stress intensity factors were measured during gait. Results revealed that the stress intensity factors modes I and III were the most dominant in the crack propagation in the cement layer. The domain of mode I was the medial and lateral sides of the cement layer. Meanwhile, the domain of mode III was the anterior and posterior sides of the cement layer. The stress intensity factor and distance from the distal end indicated an inverse relationship. The internal and external cracks had no significant interaction. Moreover, stress intensity factors at the external surface of the cement layer were higher than those on the internal surface.

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“…Analytical algorithms have been developed to describe the temperature evolution during the cure process (Baliga et al, 1992;Borzacchiello et al, 1998;Gilbert, 2006). However, to date only a few studies have simulated the curing process in order to establish the initial stress state (Jeffers et al, 2007;Lennon and Prendergast 2002;Nuno and Avanzolini 2002;Briscoe and New 2010;Perez et al, 2009). Bone cement is a visco-elastic material (Verdonschot and Huiskes 1994;Jeffers et al, 2005) and this will lead to stress relaxation in the first few hours or days, further altering the initial stress state.…”

Section: Simulation Of the Initial Mechanical Environment Of The Bonementioning

confidence: 99%

Four decades of finite element analysis of orthopaedic devices: Where are we now and what are the opportunities?

Taylor

Prendergast

2015

Journal of Biomechanics

147

106

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a b s t r a c tFinite element has been used for more than four decades to study and evaluate the mechanical behaviour total joint replacements. In Huiskes seminal paper "Failed innovation in total hip replacement: diagnosis and proposals for a cure", finite element modelling was one of the potential cures to avoid poorly performing designs reaching the market place. The size and sophistication of models has increased significantly since that paper and a range of techniques are available from predicting the initial mechanical environment through to advanced adaptive simulations including bone adaptation, tissue differentiation, damage accumulation and wear. However, are we any closer to FE becoming an effective screening tool for new devices? This review contains a critical analysis of currently available finite element modelling techniques including (i) development of the basic model, the application of appropriate material properties, loading and boundary conditions, (ii) describing the initial mechanical environment of the bone-implant system, (iii) capturing the time dependent behaviour in adaptive simulations, (iv) the design and implementation of computer based experiments and (v) determining suitable performance metrics.The development of the underlying tools and techniques appears to have plateaued and further advances appear to be limited either by a lack of data to populate the models or the need to better understand the fundamentals of the mechanical and biological processes. There has been progress in the design of computer based experiments. Historically, FE has been used in a similar way to in vitro tests, by running only a limited set of analyses, typically of a single bone segment or joint under idealised conditions. The power of finite element is the ability to run multiple simulations and explore the performance of a device under a variety of conditions. There has been increasing usage of design of experiments, probabilistic techniques and more recently population based modelling to account for patient and surgical variability. In order to have effective screening methods, we need to continue to develop these approaches to examine the behaviour and performance of total joint replacements and benchmark them for devices with known clinical performance.Finite element will increasingly be used in the design, development and pre-clinical testing of total joint replacements. However, simulations must include holistic, closely corroborated, multi-domain analyses which account for real world variability.

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Computational modelling of bone cement polymerization: Temperature and residual stresses

Cited by 22 publications

References 30 publications

Comparative Finite Element Analysis of the Debonding Process in Different Concepts of Cemented Hip Implants

Comparative Finite Element Analysis of the Debonding Process in Different Concepts of Cemented Hip Implants

Internal–external circumferential crack behaviour in the cement layer of total hip replacement

Four decades of finite element analysis of orthopaedic devices: Where are we now and what are the opportunities?

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