Numerical investigations of stress shielding in total hip prostheses
نویسندگان
چکیده
منابع مشابه
Tribology of total hip arthroplasty prostheses
Although total hip arthroplasty (THA) has provided good results for over forty years, the choice of the optimal bearing surface still remains controversial. Tribology is defined as “the branch of science and technology that deals with the study of friction, wear, and lubrication”.1 Tribology is fundamental to the function and long-term survival of orthopaedic implants. With the development of h...
متن کاملInfection of total hip prostheses by Peptococcus
In two cases of infected total hip replacements, Peptococcus magnus was isolated in pure culture from the implant when it was removed. Fluorescent antibody and ELISA studies have shown that both patients developed an antibody response to this anaerobic coccus soon after the replacement operation. These results suggest that the organism is a true infective agent, which was probably responsible f...
متن کاملInfluence of Femoral Implant Alignment in Uncemented Total Hip Replacement Arthroplasty: Varus Insertion and Stress Shielding.
BACKGROUND The influence of varus insertion of femoral implants in uncemented total hip replacement arthroplasty (THR) remains unclear. Thus, in this study, we retrospectively assessed the clinical impact of uncemented THR with femoral implants that were inserted in varus on the basis of radiological findings. MATERIALS AND METHODS The study participants included 89 patients who underwent unc...
متن کاملA review of squeaking in ceramic total hip prostheses
The occurrence of audible squeaking in some patients with ceramic-on-ceramic (CoC) hip prostheses is a cause for concern. Great effort has been dedicated to understand the mechanics of the hip squeaking to gain a deeper insight into factors contributing to sound emission from CoC hip articulation. Disruption of fluid-film lubrication and friction were reported as the main potential cause, while...
متن کاملStress shielding effects of two prosthetic groups after total hip joint simulation replacement
OBJECTIVE The study aims to compare the stress shielding effects of implantable anatomical and traditional prostheses after in vitro total hip joint replacement simulation. The study serves as a biomechanical basis for novel artificial prostheses and for clinical hip joint replacements. METHODS Sixteen femoral specimens from adult male corpses were randomly divided into two groups: the tradit...
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ژورنال
عنوان ژورنال: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
سال: 2008
ISSN: 0954-4119,2041-3033
DOI: 10.1243/09544119jeim139