Relevant bibliographies by topics / Cementless prostheses

Academic literature on the topic 'Cementless prostheses'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Cementless prostheses"

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Arias, S. A., J. R. T. Blanco, J. V. Doretto, G. L. T. Vieira, H. P. Oliveira, and C. M. F. Rezende. "Modified cementless total coxofemoral prosthesis: development, implantation and clinical evaluation." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 65, no. 6 (December 2013): 1660–72. http://dx.doi.org/10.1590/s0102-09352013000600012.

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The aim of this study was to modify canine coxofemoral prostheses and the clinical evaluation of the implantation. Fifteen canine hips and femora of cadavers were used in order to study the surface points of modification in prostheses and develop a perforation guide. Femoral stems and acetabular components were perforated and coated with biphasic calcium phosphate layer. Twelve young adult male mongrel dogs were implanted with coxofemoral prostheses. Six were operated upon and implanted with cemented canine modular hip prostheses, establishing the control group. The remaining six were implanted with a novel design of cementless porous tricalcic phosphate-hydroxyapatite coated hip prostheses. Clinical and orthopedic performance, complications, and thigh muscular hypotrophy were assessed up to the 120th post-operatory day. After 120 days, animals with cementless prostheses had similar clinical and orthopedic performance compared to the cemented group despite the increased pain thigh hypotrophy. Animals that underwent cementless hip prosthesis evidenced more pain, compared to animals with cemented hip prosthesis that required longer recuperation time. No luxations, two fractures and two isquiatic neurapraxies were identified in the course of the study. Using both the cemented and the bioactive coated cementless model were suitable to dogs, showing clinical satisfactory results. Osseointegration and biological fixation were observed in the animals with the modified cementless hip prosthesis.
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Yang, Xu, Fuqiang Gao, Wei Sun, and Zirong Li. "Clinical Application and Biological Functionalization of Different Surface Coatings in Artificial Joint Prosthesis: A Comprehensive Research Review." Coatings 12, no. 2 (January 21, 2022): 117. http://dx.doi.org/10.3390/coatings12020117.

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With advances in materials science and biology, there have been continuing innovations in the field of artificial joint prostheses. Cementless prostheses have the advantages of long service life, easy revision, and good initial stability and are widely used in artificial joint replacement. Coatings are the key to cementless prostheses and are at the heart of their excellent functionality. This article mainly studies the clinical application of hydroxyapatite (HA) coating, standard porous coating represented by Porocoat coating, and new high-porosity coating represented by Gription coating. The clinical application and biological functionalization of different artificial joint prosthesis surface coatings are clarified, and it provides a reference for the clinical selection and development of different prosthesis surface coating materials.
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Herrera, Antonio, Jesús Mateo, Jorge Gil-Albarova, Antonio Lobo-Escolar, Elena Ibarz, Sergio Gabarre, Yolanda Más, and Luis Gracia. "Cementless Hydroxyapatite Coated Hip Prostheses." BioMed Research International 2015 (2015): 1–13. http://dx.doi.org/10.1155/2015/386461.

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More than twenty years ago, hydroxyapatite (HA), calcium phosphate ceramics, was introduced as a coating for cementless hip prostheses. The choice of this ceramic is due to its composition being similar to organic apatite bone crystals. This ceramic is biocompatible, bioactive, and osteoconductive. These qualities facilitate the primary stability and osseointegration of implants. Our surgical experience includes the implantation of more than 4,000 cementless hydroxyapatite coated hip prostheses since 1990. The models implanted are coated with HA in the acetabulum and in the metaphyseal area of the stem. The results corresponding to survival and stability of implants were very satisfactory in the long-term. From our experience, HA-coated hip implants are a reliable alternative which can achieve long term survival, provided that certain requirements are met: good design selection, sound choice of bearing surfaces based on patient life expectancy, meticulous surgical technique, and indications based on adequate bone quality.
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Perner, K., E. Voth, H. G. Reith, H. G. Willert, D. Emrich, and H. Schicha. "Cementless Implantation of Zweymueller-Endler Total Endoprostheses of the Hip - Clinical, Radiological and Scintigraphic Follow-Up for 2 Years." Nuklearmedizin 25, no. 02 (1986): 55–60. http://dx.doi.org/10.1055/s-0038-1624320.

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Sixty-four patients with cementless Zweymueller-Endler total endoprostheses of the hip underwent follow-up postoperatively for 2 years. In 3 patients loosening or infection occurred. In 61 patients no complications were observed. However, in 74% of these patients increasing activity uptake at the tip of the shaft was found by scintigraphy. This was associated with hypertrophy of the corticalis and/or with a marrow cavity reaction, observed radiologically. The results show that scintigraphic evaluation of cementlessly implanted Zweymueller-Endler endoprostheses of the hip must be interpreted differently compared to isoelastic or to cemented prostheses.
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Moran, CG, and IM Pinder. "Osteolysis around cementless porous-coated knee prostheses." Journal of Bone and Joint Surgery. British volume 77-B, no. 4 (July 1995): 667–68. http://dx.doi.org/10.1302/0301-620x.77b4.7677886.

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Morrey, B. F. "Cementless Femoral Prostheses Cost More to Implant than Cemented Femoral Prostheses." Yearbook of Orthopedics 2010 (January 2010): 117. http://dx.doi.org/10.1016/s0276-1092(10)79662-0.

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Unnanuntana, Aasis, Apostolos Dimitroulias, Michael P. Bolognesi, Katherine L. Hwang, Stuart B. Goodman, and Randall E. Marcus. "Cementless Femoral Prostheses Cost More to Implant than Cemented Femoral Prostheses." Clinical Orthopaedics and Related Research® 467, no. 6 (September 10, 2008): 1546–51. http://dx.doi.org/10.1007/s11999-008-0485-z.

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Simões, J. A. O., M. Taylor, A. T. Marques, and G. Jeronimidis. "Preliminary investigation of a novel controlled stiffness proximal femoral prosthesis." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 212, no. 3 (March 1, 1998): 165–75. http://dx.doi.org/10.1243/0954411981533944.

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Previous studies have suggested that a controlled stiffness prosthesis is required to address the conflicting requirements of minimizing stress shielding and micromotion. The design for a controlled stiffness prosthesis is proposed and a preliminary analytical investigation performed to assess its predicted performance before fabrication of a prototype component. The novel prosthesis consisted of a cobalt-chrome core and a flexible composite outer layer. Varying the composite layer thickness allowed the prosthesis stiffness to be controlled. Three variants of the controlled stiffness prosthesis were critically assessed using the finite element method and their predicted performance compared with those of conventional prosthesis designs. The potential for stress shielding was assessed by examining the periosteal strain energy and the potential for migration assessed by examining the endosteal minimum principal cancellous bone stresses. Both the conventional and controlled stiffness implants performed poorly as press-fit prostheses. All the press-fit prostheses generated high cancellous bone stresses, suggesting that excessive migration of these implants would be likely. The controlled stiffness implants performed better than the conventional implants when bonded to the surrounding bone. Although the controlled stiffness implants did not eliminate stress shielding of the calcar, they produced higher strain energies than the conventional designs. The findings of this study are that osseointegrated controlled stiffness implants may perform better than current osseointegrated cementless prostheses and therefore it is worth while progressing to the next stage, of prototyping an implant.
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CHONG, DESMOND Y. R., ULRICH N. HANSEN, and ANDREW A. AMIS. "CEMENTLESS MIS MINI-KEEL PROSTHESIS REDUCES INTERFACE MICROMOTION VERSUS STANDARD STEMMED TIBIAL COMPONENTS." Journal of Mechanics in Medicine and Biology 16, no. 05 (August 2016): 1650070. http://dx.doi.org/10.1142/s0219519416500706.

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Fixation strength of the cementless knee prostheses is dependent on the initial stability of the fixation and minimal relative motion across the prosthesis–bone interface. Broad mini-keels have been developed for tibial components to allow minimally invasive knee arthroplasty, but the effect of the change in fixation design is unknown. In this study, bone–prosthesis interface micromotions of the mini-keel tibial components (consisting of two designs; one is stemless and another with a stem extension of 45[Formula: see text]mm) induced by walking and stair climbing were investigated by finite element modeling and compared with standard stemmed design. The prosthesis surface area amenable for bone ingrowth for the mini-keel tibial components (both stemmed and unstemmed) was predicted to be at least 67% larger than the standard stemmed implant, thereby reducing the risk of long-term aseptic loosening. It was also found that while different load patterns may have led to diverse predictions of the magnitude of the interface micromotions and the extent of osseointegration onto the prosthesis, the outcome of design change evaluation in cementless tibial fixations remains unchanged. The mini-keel tibial components were predicted to anchor onto the periprosthetic bone better than the standard stemmed design under all loading conditions investigated.
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Zampelis, Vasileios, Gunnar Flivik, and Uldis Kesteris. "No effect of femoral canal jet-lavage on the stability of cementless stems in primary hip arthroplasty: a randomised RSA study with 6 years follow-up." HIP International 30, no. 4 (April 21, 2019): 417–22. http://dx.doi.org/10.1177/1120700019843123.

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Introduction: In contrast to cemented hip prostheses, the effect of washing the bone bed with jet-lavage prior to insertion of cementless stem components in primary hip arthroplasty (THA) is unclear. Jet-lavage potentially decreases the risk of fat embolisation during rasping and stem insertion and might help in avoiding bacterial contamination. An earlier animal study has shown less debris and better-organised trabecular structure of new bone when jet-lavage was used. We hypothesised that the primary stability of cementless femoral stems implanted after jet-lavage of the femoral canal prior to stem insertion would improve with earlier stabilisation, as measured with Radiostereometry (RSA), compared with insertion without prior jet-lavage. Methods: 40 patients with primary osteoarthritis operated on with a cementless titanium grit blasted stem are included in the study. The patients were randomised to either jet-lavage or control without any lavage of the femoral canal prior to insertion of the prosthesis. The stem migration pattern was measured with RSA at 0, 3, 12, 24 and 72 months. Results: At 6 years, 19 patients remained for analysis in the jet-lavage and 18 in the control group. We found no difference in extent or pattern of migration as measured with RSA. Both groups seemed to have stabilised within 3 months after a slight subsidence and retroversion. No stem was revised or considered loose as measured with RSA. Conclusions: Washing the bone bed with jet-lavage prior to insertion of cementless stems does not affect the stability of cementless femoral components. No adverse effects were observed.
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Dissertations / Theses on the topic "Cementless prostheses"

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Kadir, Mohammed Rafiq bin Abdul. "Interface micromotion in cementless hip prostheses." Thesis, Imperial College London, 2005. http://discovery.ucl.ac.uk/1444854/.

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The most commonly reported failure modes of cementless hip stems are loosening and thigh pain both are attributed to the relative motion at the bone-implant interface due to failure to achieve sufficient primary fixation. The main aim of the current study is to investigate, using Finite Element Analysis, various factors that could affect micromotion and could compromise the stability of cementless femoral stems. We propose a novel technique for predicting hip stem instability to analyse these problems. The designs of cementless hip stems are crucial to its success. We first categorize them into three major types based on the overall geometry and they are all found to be stable under physiological loadings. Tsoelastic' stems are found to increase interface micromotion, but if tight fit is achieved distally, the stem would still be stable. Having shorter stems for primary arthroplasty is beneficial if revision surgery is required, but these produce larger relative motion. The results from this study show that if sufficient cortical contact is achieved distally, stability is not impaired. Two types of hip stems' fixation are also compared the proximal fixation design is found to be less stable than the distal fixation design, but stability can be improved with the use of proximal macrofeatures. The strength of primary fixation also depends on surgical parameters imprecise surgical procedures can cause interfacial gaps, implant undersizing and implant malalignment. The FE results show that undersizing should be avoided because it increases micromotion and instability, especially in stems with cylindrical design. Hip stems with varus malalignment are found to be relatively stable compared to the normally aligned undersized stem. Interfacial gaps due to surgical error are not found to impair the stem's fixation as long as maximum press-fit is achieved. Successful implant fixation also depends on the quality of the bone. Bone with skeletal diseases of osteoporosis and osteoarthritis are analysed and compared with the results from a normal healthy bone. The hip stem in the osteoporotic bone is found to have the largest micromotion and is the most unstable, especially during stair-climbing activity.
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Olufsen, Sindre Nordmark. "Numerical Analysis of Primary Stability on Cementless Hip Prostheses." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for konstruksjonsteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18776.

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Since the first Total Hip Arthroplasty (THA) performed in the 60's, it has been regarded among the most successful surgical procedures. When an un-cemented hip prosthesis is employed, the prosthesis is impacted into a prepared cavity in the femur. This surgical technique is known as impact bone grafting and is commonly used in THA. The stability of the prosthesis immediately after surgery is denoted primary stability.Numerical analyses of primary stability, often assume the forces applied during impact grafting to be lower than those present during routine activity. The magnitude of the forces applied during impact grafting is regarded a point of uncertainty, questioning this assumption. As the forces applied during impact grafting are equalized by frictional and contact forces, frictional characteristics present between prosthesis and femur could influence the primary stability of the prosthesis. The influence of grafting force magnitude and frictional characteristics on primary stability is investigated in this thesis. A study of scientific publications on primary stability was performed, forming the basis for the further analyses. External loads, mechanical properties and recommended practice with regard to numerical analysis of THA, were based on findings from this literature study.The performed analyses are purely numerical, using state of the art finite element software. The numerical model's response is verified, but as no experimental results are available on the particular geometry, validation is difficult. Two parametric studies were performed, investigating the influence of the impaction force magnitude and friction characteristics on micro motion.The friction coefficient was found to influence the primary stability of the prosthesis. An intermediate friction coefficient yielded the highest stability, with the same loads applied in all cases. Based on this finding, the influence of prosthesis-bone interface lubrication was investigated. A preliminary reduced friction coefficient during impact grafting yielded an enhanced primary stability, motivating further investigation of the concept. The magnitude of the impaction force was found to influence the primary stability of the prosthesis. An increased force magnitude above 240% of the patient bodyweight yielded an enhanced primary stability. This finding motivates a further investigation of the force magnitudes present during surgery.In order to extend the numerical model to include non-linear friction characteristics, a subroutine is proposed. The friction model's behavior is verified in this thesis, but further implementation is required.
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Venslovaitis, Linas. "Kineziterapijos poveikis tiriamųjų emocinei būklei ir klubo sąnario funkcijai po skirtingų klubo sąnario endoprotezavimo operacijų." Bachelor's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130910_153838-83023.

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Klubo sąnario endoprotezavimo operacija efektyviai sumažina arba visiškai panaikina skausmus, daugeliu atveju atstato funkcinį kojos stabilumą ir atraminę funkciją, iš dalies, bet ne visiškai atstato sąnario mobilumą (Drobniewski et al., 2012). Susidėvėjęs klubo sąnarys keičiamas cementiniu, becemenčiu arba mišriu endoprotezu (Laupacis et al., 2002). Darbo objektas: tiriamųjų emocinė būklė bei klubo sąnario funkcija po klubo endoprotezavimo operacijos. Darbo tikslas: įvertinti kineziterapijos poveikį cementinio ir becemenčio endoprotezų grupių ligoniams po klubo sąnario endoprotezavimo operacijos dėl koksartrozės, ankstyvajame reabilitacijos etape. Hipotezė: manome, kad kineziterapijos taikymas ankstyvajame reabilitacijos etape po klubo endoprotezavimo operacijos turėtų labiau pagerinti klubo sąnario funkciją becemenčio nei cementinio endoprotezo grupėje. Darbo uždaviniai: 1) Įvertinti cementinio endoprotezo grupės tiriamųjų operuoto klubo sąnario funkciją bei emocinę būklę prieš ir po kineziterapijos; 2) Įvertinti becemenčio endoprotezo grupės tiriamųjų operuoto klubo sąnario funkciją bei emocinę būklę prieš ir po kineziterapijos; 3) Palyginti operuoto klubo sąnario funkciją bei emocinę būklę tarp grupių prieš ir po kineziterapijos. Tyrimas atliktas AB „Ortopedijos technika“, kuriame dalyvavo 14 pacientų po klubo sąnario endoprotezavimo operacijos dėl koksartrozės. Jie buvo suskirstyti į dvi grupes: cementinio ir becemenčio endoprotezo grupes. Testavimai atlikti dukart –... [toliau žr. visą tekstą]
Endoprosthesis operation of the hip joint relieves or removes pain, restores functional leg stability and function of the supporting foot (Drobniewski et al., 2012). The obsolete hip joint is changed to cemented, cementless or hybrid hip prosthesis (Laupacis et al., 2002). Object: patients emotional condition and hip joint function after hip joint endoprosthesis operation. The purpose of the study was to evaluate influence of physical therapy between cemented and cementless hip prosthesis groups after hip joint endoprosthesis operation due to coxarthritis at early rehabilitation process. Hypothesis: applying physical therapy after hip joint endoprosthesis operation at early rehabilitation process should more improve hip joint function in cementless than in cemented hip prosthesis group. The tasks: 1) To evaluate operated hip joint function and emotional condition of the cemented hip prosthesis group before and after physical therapy. 2) To evaluate operated hip joint function and emotional condition of the cementless hip prosthesis group before and after physical therapy. 3) To compare hip joint function and emotional condition after operation between groups before and after physical therapy. The research has been done at AB „Ortopedijos technika“. All 14 patients were after hip joint endoprosthesis operations due to coxarthritis. They were divided into two groups: cemented and cementless hip prosthesis groups. Subjects were tested before and after psysical therapy use. It... [to full text]
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Hu, XiaoSu. "Approche probabiliste de la propagation des incertitudes dans le modèle mécano-numérique du système couplé "fémur-prothèse non cimentée"." Thesis, Clermont-Ferrand 2, 2010. http://www.theses.fr/2010CLF22065/document.

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L' arthroplastie de la hanche par prothèse non cimentée est une solution couramment employée pour les patients rencontrant des problèmes du système locomoteur. Une telle solution présente toutefois un inconvénient majeur, souligné par tous les utilisateurs : le manque de stabilité primaire de la prothèse. Or, cette faiblesse peut provoquer des complications graves, voire l'échec de l'opération chirurgicale. Par conséquent, parvenir à une bonne fixation primaire est un point crucial de ce type d'opération chirurgicale pour assurer cliniquement une satisfaction à court et long terme.Dans le but de mieux appréhender cette problématique centrale, une piste préopératoire a été adoptée. Un modèle éléments finis permettant de décrire le comportement mécanique du système couplé « os-prothèse non cimentée : DePuy Corail® » a été développé et validé par des expérimentations in vitro. Puis, pour tenir compte de la forte variabilité des paramètres du modèle, inhérente à la nature même du problème, une modélisation stochastique de ces derniers a été introduite et une stratégie mécano-probabiliste proposée, destinée d'une part à quantifier en termes probabilistes l'effet sur la réponse des incertitudes affectant les paramètres du modèle, et d'autre part à évaluer la stabilité primaire du système os-prothèse en contexte fiabiliste. La mise en oeuvre pratique de cette approche a été réalisée à l'aide d'outils numériques basés sur la méthode de Monte-Carlo standard et une procédure de collocation stochastique.L'originalité du travail présenté réside avant tout dans la proposition d'une méthodologie probabiliste capable de prendre en compte les incertitudes dans la problématique de la stabilité primaire des prothèses de hanche non cimentées. Elle tient également dans la potentialité de cette méthodologie à être facilement transplantable en contexte industriel
The hip arthroplasty with cementless hip prosthesis is a solution usually used for the patients suffering the problems of the musculoskeletal system. However, such a solution has a major disadvantage, pointed by all users : the lack of primary stability of the prosthesis. This weakness can cause serious complications or failure of the surgery. Therefore, to achieve a good primary fixation is a crucial point of this type of surgery to ensure a short and a long term clinical satisfaction. In order to better understand this central issue, a preoperative track is adopted. A finite element model to describe the mechanical behavior of the coupled system " femur-cementless prosthesis : DePuy Corail® "has been created and validated by the experiments in vitro. Then, in order to take into account the high variability of model parameters, inherent to the nature of the problem, the stochastic modeling of random input parameters has been introduced and a mechanical-probabilistic strategy has been proposed, on the one hand to quantify, in probabilistic terms, the effect, on the response, of the uncertainties affecting the input parameters of the model, and on the other hand to evaluate the primary stability of the bone-prosthesis system in reliability context. The practical implementation of this approach is realized by using the numerical tools based on the standard Monte Carlo method and the stochastic collocation procedure. The originality of the work presented is primarily in the proposition of a probabilistic methodology capable of taking into account the uncertainties in the problem of primary stability of cementless hip prostheses. It also lies in the potentiality of this methodology to be transplantable easily in industrial context
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Lin, Kun-Jr, and 林坤志. "Numerical evaluation of a new design concept for cementless hip prostheses." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/53525925860468130276.

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碩士
國立陽明大學
醫學工程研究所
94
One of the problems of artificial hip replacement is the alteration of the load transfer by inserting a prosthesis into the femoral canal. The alteration of the load transfer may result in stress-shielding effect and bone loss, especially for cementless prostheses. To diminish these conditions, load transfer to the femur should occur as proximal as possible. And in order to provide sufficient primary stability, postoperatively distal stabilization is significant. Consequently, the prosthesis have to alter its mechanical characteristics after implantation. This concept is referred to as load-shift. A new design concept with immediately postoperative stability is provided by distal shaft with a biodegradable sleeve. With resorption of the sleeve, load transfer shifts from distal to proximal gradually. The purpose of this study was then to evaluate this new design concept. The analysis was performed with a finite element model. A three-dimensional model is used to evaluate the load transfer during single-leg stance by insertion of a distal sleeve and comparison the bone stress after resorption of the sleevwe with a standard prosthesis of similar shape. After resorption of the sleeve, maximum von Mises stress at proximal femur is greater than that of directly postoperative which is increased about 32%. The bone stress at proximal femur after resorption of the sleeve is far more than the standard group. Therefore, the loading of the proximal bone tissue is more pronounced than the standard group, demonstrating the feasibility of the new design concept.
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Books on the topic "Cementless prostheses"

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Copeland, Stephen, and Jai Relwani. Surface replacement of the shoulder. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199550647.003.004008.

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♦ The design of the surface replacement arthroplasty has evolved over the past 20 years. From cemented prostheses such as the SCAN, to cementless prostheses such as the Copeland, the basic concept and design of the surface replacement favouring maximal bone preservation has remained constant.♦ Indications and surgical technique have been refined over this period, the latest modification being the use of computer-assisted navigation to optimise the size and position the implant in situ.♦ Surface replacement prosthesis has demonstrated clinical results at least equal to those of conventional stemmed prostheses.
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Book chapters on the topic "Cementless prostheses"

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Okumura, Yasuhiro, Shinichi Imura, Hironori Oomori, Kouzou Ichihashi, and Hideyuki Takedani. "Micromotions and Strains of Cementless Femoral Prostheses." In Biomechanics in Orthopedics, 204–9. Tokyo: Springer Japan, 1992. http://dx.doi.org/10.1007/978-4-431-68216-5_12.

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Gottsauner-Wolf, F., R. Kotz, M. Salzer, and H. Plenk. "Histomorphological Findings in Different Cementless Anchored Humerus Prostheses." In Limb Salvage, 329–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-75879-9_45.

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Schleberger, R., and U. Witzel. "Weight Bearing System of Bone in Cementless Hip Prostheses." In Generalized Bone Diseases, 345–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-73346-8_32.

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Eulenberger, J., E. Schneider, W. Steiner, D. Wyder, and R. Friedman. "A Method for the Comparative Evaluation of the Initial Stability of Cementless Hip Prostheses." In Biomechanics: Basic and Applied Research, 353–58. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3355-2_47.

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Tonino, Alfons, Kees Oosterbos, Ali Rahmy, and M. Thèrin. "What is the Function and Fate of the HA Coating in Cementless HA-coated Hip Prostheses?" In Fifteen Years of Clinical Experience with Hydroxyapatite Coatings in Joint Arthroplasty, 75–86. Paris: Springer Paris, 2004. http://dx.doi.org/10.1007/978-2-8178-0851-2_7.

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Ledoux, Pascal. "Cementless Total Trapezio-Metacarpal Prosthesis Principle of Anchorage." In Advances in the Biomechanics of the Hand and Wrist, 25–30. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4757-9107-5_4.

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Kofoed, H. "Medium-Term Results of Cementless Scandinavian Total Ankle Replacement Prosthesis (LINK S.T.A.R.) for Osteoarthritis." In Current Status of Ankle Arthroplasty, 116–18. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-72255-4_24.

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Yamamuro, Takao, Takashi Nakamura, Hirokazu Iida, and Yasutaka Matsuda. "A New Model of Bone-Conserving Cementless Hip Prosthesis Made of High-Tech Materials: Kobelco H-5." In Joint Arthroplasty, 213–24. Tokyo: Springer Japan, 1999. http://dx.doi.org/10.1007/978-4-431-68529-6_19.

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Weill, D., M. Schroeder, and P. Fiore. "Use of Homologue Bone Graft Sterilized in Autoclave for Reconstruction in Loosening of Total Hip Prosthesis: A Series of 90 Reconstructions with Bone Graft and Cementless Hip Replacement CLW." In Bone Transplantation, 311–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-83571-1_64.

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Goodfellow, John, John O'Connor, Hemant Pandit, Christopher Dodd, and David Murray. "Design and Biomechanics of the Oxford Knee." In Unicompartmental Arthroplasty with the Oxford Knee. Goodfellow Publishers, 2015. http://dx.doi.org/10.23912/978-1-910158-45-6-4335.

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The description of the Oxford Knee starts with an explanation of the function of mobile bearings in knee prostheses. An obvious advantage is that the areas of contact between the joint surfaces are maximised. In this chapter, we shall show that wear at the polyethylene surfaces is thereby minimised and that optimal kinematics can be achieved with minimal risk of loosening. We will discuss the biomechanics of the cementless components and problems that may occur with the tibia.
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Conference papers on the topic "Cementless prostheses"

1

Varini, Elena, Maurizio Lannocca, Ewa Bialoblocka, Angelo Cappello, and Luca Cristofolini. "A Device to Test the Primary Stability in Cementless Hip Arthroplasty Through Mechanical Vibrations." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95185.

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Primary stability of cementless prostheses is critical for the long term outcome of the operation. Cementless implants are mechanically stabilized during surgery through a press-fitting procedure. To achieve a good initial stability, it is important that the surgeon performs an optimal press-fitting, avoiding both problems of stem loosening, and micro-cracking of the host bone. A possible approach to solve this problem and assist the surgeon in achieving the optimal compromise, involves the use of the vibration analysis. This technique was used in the presented study, which was aimed to design and test a prototype device able to evaluate the primary stability of a cementless prosthesis, at the femoral level. In particular, the goal was to discriminate between stable and quasi-stable implants; thus the stem-bone system was assumed linear in both cases. For that reason, it was decided to study the frequency responses of the system, instead of the harmonic distortion. The prototype was developed. It is mainly composed by a piezoelectric exciter connected to the stem and an accelerometer attached to the femur. Preliminary tests were performed on a composite femur implanted with a conventional stem. The results showed that the input signal is repeatable and the output can be accurately recorded. The parameters that seem to be more sensitive to stability are the resonance frequency and the amplitude at the resonance frequency.
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2

Paliwal, Manish, D. Gordon Allan, and Peter Filip. "Failure of Three Cementless Modular Total Hip Arthroplasty Prostheses: A Retrieval Analysis." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-66998.

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The reasons leading to the in vivo failure of three titanium alloy modular implants in cementless total hip arthroplasty were investigated. The implantation period ranged from 18 months to over three years. Two were fractured in vivo and the other was retrieved secondary to aseptic loosening after 18 months in service. Macroscopic examination showed close topographical similarities between the two fractured implants. Dark elliptical striations on the fractured site indicated the occurrence of low cycle fatigue. Light Microscopy and Scanning Electron Microscopy confirmed the presence of fretting, pitting, plastic deformation, and stress-induced corrosion cracking. In two of the three implants, EDS confirmed metal ion traces in the tissue around the implant. However, nothing unusual was found in the third unfractured implant. Taper performance is influenced by metallurgy, the load carried and the effect of the local microenvironment. Methods to reduce the impact of these factors may reduce the incidence of taper related failure.
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3

Chong, Desmond Y. R., Ulrich N. Hansen, and Andrew A. Amis. "Computational Biomechanical Analysis of Fixation Performance and Bone Resorption of Tibial Prosthesis Implantation." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-205205.

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Long-term survivorship of total knee replacement (TKR) relies on the periprosthetic bone strength and its initial fixation stability. Aseptic loosening caused by mechanical factors is a recognised failure mode for knee prostheses. Bone resorption due to “stress-shielding” of the stiff stemmed implants will potentially lead to weakened bone strength, and also presents a challenge for revision surgery. While the bone cement is commonly used to provide mechanical attachment of the prosthesis to the bone, cement fatigue and bone-cement interface failures would eventually lead to component migration and aseptic loosening of the tibial components. The cementless fixation relies on bony ingrowth into the porous surfaces of the prosthesis thereby providing a biological attachment. Its fixation strength would depend largely on the initial stability of the fixation, where excessive bone-prosthesis relative motion (>50μm) would inhibit the osseointegration process [1]. The above are caused partly by a lack of knowledge of the optimum implant design and fixation technique factors.
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4

Sivasankar, M., A. Aravindhan, K. Gowthaman, T. Karthigeyan, and K. Sathish Kumar. "Design and fabrication of cementless hip prosthesis." In 2014 International Conference on Science Engineering and Management Research (ICSEMR). IEEE, 2014. http://dx.doi.org/10.1109/icsemr.2014.7043571.

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5

Potiwiput, Sugunya, Thanaporn Praphant, Atcharaporn Mai-orn, Chi-na Benyajati, and Chamaiporn Sukjamsri. "Cementless prosthesis for reconstructing shoulder with glenoid retroversion." In 2016 9th Biomedical Engineering International Conference (BMEiCON). IEEE, 2016. http://dx.doi.org/10.1109/bmeicon.2016.7859600.

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6

binti Abdullah, Haslina, and Nazri bin Kamsah. "Stability of cementless hole and non-hole hip prosthesis." In 2012 International Conference on Biomedical Engineering (ICoBE). IEEE, 2012. http://dx.doi.org/10.1109/icobe.2012.6178950.

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7

Zivkovic, Ivan, Farid Amirouche, and Mark Gonzalez. "Experimental In-Vitro Method to Measure the Migration of Cementless Prosthesis." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-175545.

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8

Paliwal, Manish, D. Gordon Allan, and Peter Filip. "Retrieval Analysis of a Cementless Modular Total Hip Arthroplasty Prosthesis." In 2007 IEEE 7th International Symposium on BioInformatics and BioEngineering. IEEE, 2007. http://dx.doi.org/10.1109/bibe.2007.4375615.

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9

Gaspar, M. C., A. Mateus, C. Pereira, and F. V. Antunes. "Biomechanical Modeling of Hip Joint Prosthesis." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-64276.

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In this work a Bombelli cementless isoelastic RM total hip prosthesis was considered. It was implanted over a course of 14 years on the patient and studied subsequently to its chirurgical replacement. Computed Tomography, radiographies and 3-D laser scanning were used to assess the prosthesis geometry, while the original femur anatomy was modeled based on 2-D radiographies taken at different stages of the in-vivo implant of the prosthesis. A finite element model was developed, based on the generated 3-D geometrical model, considering a linear elastic behavior and typical loading conditions. This analysis allowed determining stress and strain fields throughout bone-prosthesis contact surface and critical areas in terms of micromovements. The developed procedure, consisting of 3-D scanning, generation of geometrical 3-D models and finite element analysis, results in a powerful tool to follow-up and predict failure mechanisms in hip joint prosthesis.
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10

Caouette, Christiane, Martin N. Bureau, and L’Hocine Yahia. "Secondary Stability of a Composite Biomimetic Cementless Hip Stem." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192176.

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Total hip replacement is one of the most successful and frequent surgery in the world; over a million of these procedures are performed every year, and the numbers are growing with the ageing of the general population. The patients who receive these implants also are younger nowadays. Major problems however still subsist with traditional hip stems: aseptic loosening is a common cause of revision surgery. The main causes of aseptic loosening are both mechanical and biological in origin. Mechanical causes include stress shielding and micromotions at bone-implant interface, and biological causes are mainly osteolysis triggered by wear debris formation and bone remodeling. To remedy the mechanical issues, a biomimetic concept was developed (patent pending): an osseointegrated stem with mechanical properties close to those of the surrounding bone would avoid both stress shielding and micromotions phenomena. To evaluate this concept, a finite element model (FEM) was developed and used to simulate bone resorption, stress shielding and micromotions [1]. The preliminary results were promising as those problems were significantly reduced with the new prosthesis, but the model still remained to be proved accurate; its bone-implant interface was of particular interest because of its decisive influence on micromotions.
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