Biomechanical determinants of the stability of dental implants: Influence of the bone–implant interface properties

Mathieu, V.; Vayron, Romain; Richard, Gilles; Lambert, Grégory; Naı̈li, S.; Méningaud, Jean-Paul; Haïat, Guillaume

doi:10.1016/j.jbiomech.2013.09.021

Cited by 132 publications

(92 citation statements)

References 130 publications

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“…However, aseptic loosening represents one of the main causes of failure of cementless orthopedic implants [3, 4]. Micromotions at the bone-implant interface may induce the development of fibrous tissue around the implant, which could be responsible for aseptic loosening [5–8]. The implant primary stability is a major determinant of the surgical success of hip arthroplasty surgery [9].…”

Section: Introductionmentioning

confidence: 99%

Assessing the Acetabular Cup Implant Primary Stability by Impact Analyses: A Cadaveric Study

et al. 2016

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BackgroundThe primary stability of the acetabular cup (AC) implant is an important determinant for the long term success of cementless hip surgery. However, it remains difficult to assess the AC implant stability due to the complex nature of the bone-implant interface. A compromise should be found when inserting the AC implant in order to obtain a sufficient implant stability without risking bone fracture. The aim of this study is to evaluate the potential of impact signals analyses to assess the primary stability of AC implants inserted in cadaveric specimens.MethodsAC implants with various sizes were inserted in 12 cadaveric hips following the same protocol as the one employed in the clinic, leading to 86 different configurations. A hammer instrumented with a piezoelectric force sensor was then used to measure the variation of the force as a function of time produced during the impact between the hammer and the ancillary. Then, an indicator I was determined for each impact based on the impact momentum. For each configuration, twelve impacts were realized with the hammer, the value of the maximum amplitude being comprised between 2500 and 4500 N, which allows to determine an averaged value IM of the indicator for each configuration. The pull-out force F was measured using a tangential pull-out biomechanical test.ResultsA significant correlation (R2 = 0.69) was found between IM and F when pooling all data, which indicates that information related to the AC implant biomechanical stability can be retrieved from the analysis of impact signals obtained in cadavers.ConclusionThese results open new paths in the development of a medical device that could be used in the future in the operative room to help orthopedic surgeons adapt the surgical protocol in a patient specific manner.

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Section: Introductionmentioning

confidence: 99%

Assessing the Acetabular Cup Implant Primary Stability by Impact Analyses: A Cadaveric Study

et al. 2016

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“…For cells to attach onto implant biomaterials, having the hardness of the materials comparable to the extracellular matrix is an important factor, in which this is totally contrary to the requirement of hard and tough metal-based structural implants [24]. With the PEMs coating, the hardness of the material substrates could be greatly reduced to about 1/3 of that of bone tissue (0.6 to 0.8 GPa) [25,26], therefore, this C/PGA coating can be a simple and practical approach to modify the surface mechanical properties of biometals. …”

Section: Mechanical Propertiesmentioning

confidence: 99%

Preparation of Chitosan/Poly‐γ‐Glutamic Acid Polyelectrolyte Multilayers on Biomedical Metals for Local Antibiotic Delivery

Liu

Wang

et al. 2017

Metals

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Abstract:Polyelectrolyte multilayer assembly is one of the most widely applied biomaterial coatings for applications from surface modification, drug delivery, tissue engineering to biomimetic extracellular environment. In this research, we propose a simple layer-wise spin coating technique to prepare chitosan/poly-γ-glutamic acid (C/PGA) polyelectrolyte multilayers (PEMs) on two different biomedical metals, 316L stainless steel (316LSS) and titanium alloy (Ti6Al4V). The multilayer coating was fabricated using oppositely charged chitosan and poly-γ-glutamic acid to deposit a total of 10, 20, or 30 multilayered films. Afterward, tetracycline was loaded by soaking the coated metals for 12 hours. The microstructure, mechanical properties, biocompatibility and drug release rate were investigated by scanning electron microscopy, contact angle measurement, MG63 cell viability and inhibition of Escherichia coli (E. coli) growth. Lastly, MG63 cell attachment was detected by fluorescence microscopy after staining with Hoechst 33258. This coating technique can prepare a layer of 2.2-6.9 µm C/PGA PEMs favoring cell attachment and growth. Moreover, tetracycline was released from C/PGA PEMs and inhibited the growth of E. coli. The results suggest that C/PGA PEMs provide a useful platform for modulating the micro-environment for better cell adhesion and antibiotic delivery, which hold great potential for surface modification and drug loading for biomimetic materials.

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“…Osseocare (Nobel Biocare) ise frezlerin giriş torkunun ölçümü ile çalışmaktadır ve yine primer stabilitenin belirlenmesi için bir değer sağladığı konusunda bir kanıt yoktur. Periotest değerleri ve kemik-implant bağlantısının değerlendirildiği bir çalışmada, cihazın implantı çevreleyen kemiğin özelliklerine duyarlı olduğu, kemikimplant bağlantısını herhangi bir şekilde değerlendir-mediği bildirilmiştir 37 . Aynı çalışmada rezonans frekans analizinin, implantı çevreleyen kemiğe duyarlı olduğu ve implantın stabilitesini belirleyen ISQ (Implant stability quotient) değeri ile implantın anatomik lokasyonu arasındaki ilişkinin kanıtlandığı bildirilmiştir.…”

Section: İmplant Stabilitesiunclassified

İmplant Tedavi̇si̇ni̇n Prognozunu Etki̇leyen Lokal Ri̇sk Faktörleri̇

Peker¹,

Karaca²

2015

Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

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Biomechanical determinants of the stability of dental implants: Influence of the bone–implant interface properties

Cited by 132 publications

References 130 publications

Assessing the Acetabular Cup Implant Primary Stability by Impact Analyses: A Cadaveric Study

Assessing the Acetabular Cup Implant Primary Stability by Impact Analyses: A Cadaveric Study

Preparation of Chitosan/Poly‐γ‐Glutamic Acid Polyelectrolyte Multilayers on Biomedical Metals for Local Antibiotic Delivery

İmplant Tedavi̇si̇ni̇n Prognozunu Etki̇leyen Lokal Ri̇sk Faktörleri̇

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