PMID: 16532612Mar 15, 2006Paper

Cortical bone viscoelasticity and fixation strength of press-fit femoral stems: an in-vitro model

Journal of Biomechanical Engineering
T L NormanV L Kish

Abstract

Cementless total hip femoral components rely on press-fit for initial stability and bone healing and remodeling for secondary fixation. However, the determinants of satisfactory press-fit are not well understood. In previous studies, human cortical bone loaded circumferentially to simulate press-fit exhibited viscoelastic, or time dependent, behavior. The effect of bone viscoelastic behavior on the initial stability of press-fit stems is not known. Therefore, in the current study, push-out loads of cylindrical stems press-fit into reamed cadaver diaphyseal femoral specimens were measured immediately after assembly and 24 h with stem-bone diametral interference and stem surface treatment as independent variables. It was hypothesized that stem-bone interference would result in a viscoelastic response of bone that would decrease push-out load thereby impairing initial press-fit stability. Results showed that push-out load significantly decreased over a 24 h period due to bone viscoelasticity. It was also found that high and low push-out loads occurred at relatively small amounts of stem-bone interference, but a relationship between stem-bone interference and push-out load could not be determined due to variability among specimens....Continue Reading

References

Jan 1, 1979·Journal of Biomechanics·R S LakesS S Sternstein
Jan 1, 1979·Journal of Biomechanics·R S Lakes, J L Katz
Jul 1, 1973·Journal of Biomedical Materials Research·H U CameronI MacNab
Mar 1, 1997·The Journal of Bone and Joint Surgery. British Volume·R P KatzR C Johnston
Oct 20, 1999·Skeletal Radiology·T W Bauer, J Schils
Aug 22, 2002·Journal of Biomechanical Engineering·Christopher U BrownJ David Blaha
Feb 20, 2004·The Journal of Arthroplasty·Kevin J BozicHarry E Rubash
Mar 15, 2006·Journal of Biomechanical Engineering·T R ShultzT L Norman

❮ Previous
Next ❯

Citations

Aug 22, 2002·Journal of Biomechanical Engineering·Christopher U BrownJ David Blaha
Mar 15, 2006·Journal of Biomechanical Engineering·T R ShultzT L Norman
Feb 18, 2011·Journal of Shoulder and Elbow Surgery·Cholawish ChanlalitShawn W O'Driscoll
Apr 17, 2009·Clinical Biomechanics·Sune H PettersenBjørn Skallerud
Dec 24, 2008·Clinical Biomechanics·Sune H PettersenBjørn Skallerud
Apr 20, 2016·Biomechanics and Modeling in Mechanobiology·Krishnagoud MandaPankaj Pankaj
Dec 9, 2014·Journal of the Mechanical Behavior of Biomedical Materials·Sanaz BerahmaniNico Verdonschot
Jul 22, 2016·Biomechanics and Modeling in Mechanobiology·Krishnagoud MandaPankaj Pankaj
Nov 29, 2012·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Radovan ZderoDouglas D R Naudie
Nov 16, 2013·Journal of Biomechanical Engineering·Leila MalekmotieiAref Samadi-Dooki
Apr 28, 2007·The Journal of Bone and Joint Surgery. British Volume·I UdofiaP Grigoris

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.