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Relationship between interfacial micromotion and bone density around cementless hip implant

Publications associées (107)

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Cementless total hip arthroplasty is a highly successful and reliable procedure to restore joint function and reduce pain in patients with severe osteoarthritis. Nevertheless, despite the technical advances over the last decades in the development of cemen ...

EPFL2016

Full-field measurement of micromotion around a cementless femoral stem using micro-CT imaging and radiopaque markers

Dominique Pioletti, Alexandre Terrier, Valérie Hélène Emilie Malfroy Camine, Hannes Andreas Rüdiger

A good primary stability of cementless femoral stems is essential for the long-term success of total hip arthroplasty. Experimental measurement of implant micromotion with linear variable differential transformers is commonly used to assess implant primary ...

Elsevier2016

Biomechanical Role of Bone Anisotropy Estimated on Clinical CT Scans by Image Registration

Alexandre Terrier, Adeliya Latypova, Elham Taghizadeh, Philippe Büchler

Image-based modeling is a popular approach to perform patient-specific biomechanical simulations. Accurate modeling is critical for orthopedic application to evaluate implant design and surgical planning. It has been shown that bone strength can be estimat ...

Springer Verlag2016

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Objectives(i) To assess the effects of mechanical overloading on implant integration in rat tibiae, and (ii) to numerically predict peri-implant bone adaptation. Materials and methodsTranscutaneous titanium implants were simultaneously placed into both tib ...

Wiley-Blackwell2016

Impact of the Femoral Head Position on Moment Arms in Total Hip Arthroplasty: A Parametric Finite Element Study

Alexandre Terrier, Valérie Parvex

Background: Although the importance of accurate femoral reconstruction to achieve a good functional outcome is well documented, quantitative data on the effects of a displacement of the femoral center of rotation on moment arms are scarce. The purpose of t ...

Elsevier2016

Impact of individual anatomy on the benefit of cup medialisation in total hip arthroplasty

Alexandre Terrier, Hannes Andreas Rüdiger, Valérie Parvex

Introduction: In total hip arthroplasty, cup medialisation with compensatory increase of femoral offset has been proposed to increase the moment arms of abductor muscles. However, this technique is associated with a loss of acetabular bone stock. Previous ...

Wichtig Publishing2016

The reliable assessment of craniofacial morphological changes during growth requires invariant regions for image registration. As these regions have not yet been identified in three dimensions, intra-osseous implants are required as fiducial markers for th ...

Oxford Univ Press2016

Total Knee Arthroplasty (TKA) is a well-accepted surgical treatment of severe cases of osteoarthritis. Surgery is associated with improved pain level, knee function and health-related quality of life. Despite advances in surgical techniques and implant des ...

EPFL2015

Finite element modelling of the bone-implant interface and experimental validation

Céline Samira Wyss

Excessive interfacial micromotion endangers the implant primary stability by favoring the formation of a fibrous tissue layer at the bone-implant interface. It was recently proposed that implant micromotion induces fluid flow in the granulation tissue that ...

2015

Adverse tissue reaction to corrosion at the neck-stem junction after modular primary total hip arthroplasty

Stefano Mischler, Pierre Mettraux

Complications related to the neck-stem junction of modular stems used for total hip arthroplasty (THA) are generating increasing concern. A 74-year-old male had increasing pain and a cutaneous reaction around the scar 1 year after THA with a modular neck-s ...

Elsevier Masson2015