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Journal articles on the topic 'Artificial hip joints – Materials'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

Pezzotti, Giuseppe, and Kengo Yamamoto. "Artificial hip joints: The biomaterials challenge." Journal of the Mechanical Behavior of Biomedical Materials 31 (March 2014): 3–20. http://dx.doi.org/10.1016/j.jmbbm.2013.06.001.

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2

Jangid, Vivek, Abhishek Kumar Singh, and Abhishek Mishra. "Wear Simulation of Artificial Hip Joints: Effect of Materials." Materials Today: Proceedings 18 (2019): 3867–75. http://dx.doi.org/10.1016/j.matpr.2019.07.326.

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3

Shi, Ruimin, Bukang Wang, Jiquan Liu, Zhiwei Yan, and Lei Dong. "Influence of Cross-Shear and Contact Pressure on Wear Mechanisms of PEEK and CFR-PEEK in Total Hip Joint Replacements." Lubricants 10, no. 5 (April 30, 2022): 78. http://dx.doi.org/10.3390/lubricants10050078.

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With the increasing market demand for artificial hip joints, total hip joint replacement has gradually become an effective means of treating a series of hip joint diseases. In order to improve the service life of artificial hip joints, some new artificial hip joint materials, including polyetheretherketone (PEEK) and carbon fiber reinforced polyetheretherketone (CFR-PEEK), have been developed. In this paper, pin-on-plate wear tests under different cross-shear ratios and contact pressures were carried out to study the wear mechanism and worn surface topography of PEEK and CFR-PEEK. The experimental results showed that the wear of PEEK was associated with cross-shear, while CFR-PEEK was not. When the cross-shear ratio was 0.039 and contact pressure was 3.18 MPa, PEEK had poor wear resistance and its wear factor was about eight times that of ultra-high molecular weight polyethylene (UHMWPE). The wear resistance of CFR-PEEK had a significant advantage, since its wear factor was about 30% of that of PEEK. The wear factors of PEEK and CFR-PEEK increased as the contact pressure increased. The arithmetic average of the height amplitude of the surface, Sa, also increased gradually according to the topography of the worn surface. The wear mechanisms of PEEK and CFR-PEEK were scratching, plough cutting, and abrasion Since CFR-PEEK had good wear resistance and insensitivity to cross-shear motion, it is suitable for making artificial hip joints under low contact pressure condition.

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4

Pezzotti, Giuseppe, Ian C. Clarke, C. Jobe, T. Donaldson, Kengo Yamamoto, Toshiyuki Tateiwa, T. Kumakura, R. Tsukamoto, and Junji Ikeda. "Confocal Raman Spectroscopic Analysis of Ceramic Hip Joints." Key Engineering Materials 309-311 (May 2006): 1211–14. http://dx.doi.org/10.4028/www.scientific.net/kem.309-311.1211.

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A survey of confocal Raman/fluorescence microprobe spectroscopic techniques is presented with emphasis placed on surface analysis of artificial hip joints. Suitable instrumental configurations are first explained in some details in order to describe the versatility of the spectroscopic microprobes to biomedical materials analyses. Then, these notions, which represent the foundation for structural and mechanical analyses of joint surfaces, are applied to selected cases of paramount importance in hip arthroplasty.

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5

Weiss, Cornelius, Arne Hothan, Michael Morlock, and Norbert Hoffmann. "Friction-Induced Vibration of Artificial Hip Joints." GAMM-Mitteilungen 32, no. 2 (December 2009): 193–204. http://dx.doi.org/10.1002/gamm.200910016.

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6

Triyono, Joko, Aditya Rio Prabowo, and Jung Min Sohn. "Investigation of Meshing Strategy on Mechanical Behaviour of Hip Stem Implant Design Using FEA." Open Engineering 10, no. 1 (August 23, 2020): 769–75. http://dx.doi.org/10.1515/eng-2020-0087.

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AbstractHip joint is an important human joints system. The damaged hip joints need to be replaced with artificial hip joints. The Study of the hip joint is very costly therefore another calculation method is demanded to produce good result in acceptable time and cost. Considering this problem, a series of study to assess hip joint performance is conducted using numerical approach. Important parameter for example applied materials are used in the modelling by idealizing Ti-6Al-4V compared to SS 316 L, and stemlengthwas chosen to be 128 mm. ANSYS software was used to analyze models, and designed element size variations were set to be in range 1 to 2.5 mm. The magnitude of force was placed on the femoral head with an angle of 16∘C from the vertical axis. Results showed that SS 316 L material has smaller deformation than Ti material. Whereas Central Processing (CP) time decreases in increasing element size for both materials. In addition, more variations in mesh size are needed to get more accurate convergent results.

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7

Singh, Ranjeet Kumar, and Swati Gangwar. "An assessment of biomaterials for hip joint replacement." International Journal of Engineering, Science and Technology 13, no. 1 (July 8, 2021): 25–31. http://dx.doi.org/10.4314/ijest.v13i1.4s.

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Hip replacement is a surgical process where natural hip joints are replaced by artificial hip joint that helps the human being for getting better lifestyle by reduction in the unavoidable pain and better leg movement. The selection of material and durability of the hip joint replacement are serious significance for the implantation, because it determines how load is transferred through the stem. In the selection of materials, various problems related to hip joint replacement are found like adverse tissue reaction, allergic reaction, wear and corrosion resistance etc. To overcome this problem one has to create different new biomaterial. This review gives brief description about the different biomaterial used for hip joint replacement.

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8

Wilches, L. V., J. A. Uribe, and A. Toro. "Wear of materials used for artificial joints in total hip replacements." Wear 265, no. 1-2 (June 2008): 143–49. http://dx.doi.org/10.1016/j.wear.2007.09.010.

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9

ZHANG, Lei-Lei, Tao HU, He-Jun LI, Jin-Hua LU, Xue-Tao SHEN, Wei-Feng CAO, and Bin WANG. "Wear Particles of Carbon/Carbon Composite Artificial Hip Joints." Journal of Inorganic Materials 25, no. 4 (May 5, 2010): 349–53. http://dx.doi.org/10.3724/sp.j.1077.2010.00349.

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10

Unsworth, A., R. M. Hall, I. C. Burgess, B. M. Wroblewski, R. M. Streicher, and M. Semlitsch. "Frictional resistance of new and explanted artificial hip joints." Wear 190, no. 2 (December 1995): 226–31. http://dx.doi.org/10.1016/0043-1648(95)06653-5.

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11

ARAKI, Yusuke, Bo ZHANG, Toshifumi MAWATARI, and Akira NAKAJIMA. "616 Study on Wear Resistance Property of Materials for Artificial Hip Joints." Proceedings of Conference of Kyushu Branch 2012.65 (2012): 223–24. http://dx.doi.org/10.1299/jsmekyushu.2012.65.223.

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12

Jin, Z. M., and D. Dowson. "A full numerical analysis of hydrodynamic lubrication in artificial hip joint replacements constructed from hard materials." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 213, no. 4 (April 1, 1999): 355–70. http://dx.doi.org/10.1243/0954406991522310.

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A full numerical analysis of the hydrodynamic lubrication problem of artificial hip joint replacements with surfaces of high elastic modulus materials, such as metal-on-metal or ceramic-on-ceramic, under cyclic walking conditions is reported in this paper. The Reynolds equation in spherical coordinates has been solved for both entraining and combined entraining and squeeze film motions under a three-dimensional variation in both the load and the speed experienced in hip joints during walking. It has been shown that a finite lubricating film thickness can be developed during the walking cycle owing to the combined action of the squeeze film and entraining motions under some conditions. It has been found that the design parameters for plain spherical bearings, such as the femoral head radius and the radial clearance between the femoral head and the acetabular cup, have a large effect on the magnitude of the predicted lubricating film thickness. Some interest has been shown in recent years in the performance of metal-on-metal bearings in which a dimple has been machined at the pole of the acetabular cup. It is shown that a dimple on the acetabular cup can significantly increase the film thickness throughout the walking cycle, particularly for relatively large depths and if the location of the dimple coincides with the direction of the resultant force acting on the joints. It is concluded that there is a good possibility that a full continuous hydrodynamic lubricating film can be developed in ceramic-on-ceramic hip joint replacements, and perhaps for some well-finished metal-on-metal implants with a relatively small radial clearance. For some metal-on-metal configurations, the effect of elastic deformation of the bearing surfaces must be taken into account in the lubrication analysis, particularly for a relatively large radial clearance.

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13

Maehara, Katsuhiko, Kenji Doi, Tomiharu Matsushita, and Yoshio Sasaki. "Application of Vanadium-Free Titanium Alloys to Artificial Hip Joints." MATERIALS TRANSACTIONS 43, no. 12 (2002): 2936–42. http://dx.doi.org/10.2320/matertrans.43.2936.

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14

Ismail, R., A. P. Bayuseno, D. F. Fitriyana, R. B. Taqriban, R. C. Muhamadin, R. A. N. Al Hakim, and J. P. Siregar. "Mechanical properties characterization of Ti6Al4V for artificial hip joint materials prepared by investment casting." IOP Conference Series: Earth and Environmental Science 969, no. 1 (January 1, 2022): 012001. http://dx.doi.org/10.1088/1755-1315/969/1/012001.

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Abstract The Investment Casting (IC) process is a type of casting that can produce the suitable shape and size of components by minimizing porosity and defects. However, research on ICs for the manufacture of artificial hip joints made from Ti6Al4V is still lacking. Therefore, the purpose of this study is to determine the mechanical properties of an artificial hip joint made from Ti6Al4V casted using the investment casting method. The stages of the investment casting process used in this research are wax injection, ejection of wax pattern, tree assembly, slurry coating, final sand mould, dewaxing, preheating, pouring, and final product. The characterization of IC products was carried out by tensile test, hardness test, and impact test. The yield strength, Ultimate Tensile Strength, Elongation (%), Hardness (HRC) and Impact Strength obtained in this study were 636 MPa, 687 MPa, 17%, 29 HRC, and 5.3 J, respectively. The lower oxygen content in Ti Alloy after IC resulted in a decrease in yield strength, ultimate tensile strength, hardness, and impact energy. However, the low oxygen content in Ti Alloy after IC resulted in increased ductility (% elongation).

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15

Kalayarasan, M., V. Prabhu Raja, V. Nithin, S. Vivinkumar, and M. Vishwaanth. "Comparative Study of Wear Behavior of Multilayer Coatings for Human Hip Prosthesis." Applied Mechanics and Materials 787 (August 2015): 528–33. http://dx.doi.org/10.4028/www.scientific.net/amm.787.528.

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Artificial hip joints have been implanted throughout the world into patients suffering from disabling hip joint disease, to restore their painless joint function. This means replacing the femoral head and acetabular socket with artificial prosthetic components. In order to obtain artificial implants with enhanced physical, chemical, mechanical, biological and tribological properties resulting in the accelerated self-adaptation of human body and long term performance, it is necessary to combine the advantages of materials with various properties; biocompatibility, bioactivity, excellent corrosion resistance, high fatigue and tensile strength, low modulus of elasticity, coefficient of friction, and high wear resistance. The present work focuses on investigating the wear rate of multi-layer coatings for different combinations in order to reduce the wear rate of the prosthesis. Three different combinations of multilayer coating were deposited by plasma arc spraying technique on titanium. It was found that the multi-layer coating consists of Alumina as a primary coating and Zirconia as the secondary coating provides lower wear rate and higher hardness compared to other combinations which would give optimal performance and thereby increasing its longevity.

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16

Tipper, J. L., A. Hatton, J. E. Nevelos, E. Ingham, C. Doyle, R. Streicher, A. B. Nevelos, and J. Fisher. "Alumina–alumina artificial hip joints. Part II: Characterisation of the wear debris from in vitro hip joint simulations." Biomaterials 23, no. 16 (August 2002): 3441–48. http://dx.doi.org/10.1016/s0142-9612(02)00048-0.

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17

LI, He-Jun, Lei-Lei ZHANG, Jin-Hua LU, Ke-Zhi LI, Qian-Gang FU, Xue-Ni ZHAO, and Sheng CAO. "Wear Mechanism of Biomedical Carbon/Carbon Composites for Artificial Hip Joints." Journal of Inorganic Materials 25, no. 9 (August 30, 2010): 999–1002. http://dx.doi.org/10.3724/sp.j.1077.2010.10144.

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18

Wang, F. C., and Z. M. Jin. "Elastohydrodynamic Lubrication Modeling of Artificial Hip Joints Under Steady-State Conditions." Journal of Tribology 127, no. 4 (March 22, 2005): 729–39. http://dx.doi.org/10.1115/1.1924460.

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A general steady-state elastohydrodynamic lubrication model was developed for artificial hip joints, with particular reference to the effect of the anatomical position of the cup and the three-dimensional physiological loading and motion experienced during walking. Appropriate spherical coordinates and mesh grids were employed to facilitate the numerical solution. A specific hip implant employing an ultrahigh molecular-weight polyethylene acetabular cup against a metallic femoral head was chosen to demonstrate the general applicability of the lubrication model and the effects of both the cup inclination angle and the combined flexion-extension and internal-external rotation on the lubrication were analyzed.

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19

Nine, Md, Dipankar Choudhury, Ay Hee, Rajshree Mootanah, and Noor Osman. "Wear Debris Characterization and Corresponding Biological Response: Artificial Hip and Knee Joints." Materials 7, no. 2 (February 10, 2014): 980–1016. http://dx.doi.org/10.3390/ma7020980.

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20

Chen, Shibiao, Gang Cheng, and Yusong Pang. "Dynamic Analysis and Trajectory Tracking Control for a Parallel Manipulator with Joint Friction." Applied Sciences 12, no. 13 (July 1, 2022): 6682. http://dx.doi.org/10.3390/app12136682.

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To overcome the bearing capacity deficiencies of traditional serial hip joint simulators, complex trajectory simulation, among others, as well as a parallel manipulator with two pairs of artificial hip joints and two moving platforms are proposed. The movements and driving forces of the parallel manipulator under the required motion and loading are studied to provide a basis for further research. In this study, the modeling and analysis of inverse kinematics and dynamics for a parallel manipulator with joint friction are derived. In the inverse kinematic model, kinematic relationships between the linear module slider and the moving platform are established, and expressions for the slider are deduced. Subsequently, by analyzing the frictional forces of the artificial hip joint and thrust ball bearing, a rigid body dynamics model of the parallel manipulator with joint friction is established, which is subsequently decomposed into four driving torques associated with the moving platform, joint lever, slider, and screw. Finally, the difference in the kinematic performance between the two moving platforms is analyzed using numerical simulations and experiments, and the accuracy of the established model is verified.

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21

SHIRASAKI, Yoshio, Tetsuya TATEISHI, and Atsushi KUSABA. "Biomechanical Study of Artificial Hip Joint." Transactions of the Japan Society of Mechanical Engineers Series A 63, no. 610 (1997): 1255–59. http://dx.doi.org/10.1299/kikaia.63.1255.

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22

Fouly, Ahmed, Ibrahim A. Alnaser, Abdulaziz K. Assaifan, and Hany S. Abdo. "Evaluating the Performance of 3D-Printed PLA Reinforced with Date Pit Particles for Its Suitability as an Acetabular Liner in Artificial Hip Joints." Polymers 14, no. 16 (August 15, 2022): 3321. http://dx.doi.org/10.3390/polym14163321.

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Off-the-shelf hip joints are considered essential parts in rehabilitation medicine that can help the disabled. However, the failure of the materials used in such joints can cause individual discomfort. In support of the various motor conditions of the influenced individuals, the aim of the current research is to develop a new composite that can be used as an acetabular liner inside the hip joint. Polylactic acid (PLA) can provide the advantage of design flexibility owing to its well-known applicability as a 3D printed material. However, using PLA as an acetabular liner is subject to limitations concerning mechanical properties. We developed a complete production process of a natural filler, i.e., date pits. Then, the PLA and date pit particles were extruded for homogenous mixing, producing a composite filament that can be used in 3D printing. Date pit particles with loading fractions of 0, 2, 4, 6, 8, and 10 wt.% are dispersed in the PLA. The thermal, physical, and mechanical properties of the PLA–date pit composites were estimated experimentally. The incorporation of date pit particles into PLA enhanced the compressive strength and stiffness but resulted in a reduction in the elongation and toughness. A finite element model (FEM) for hip joints was constructed, and the contact stresses on the surface of the acetabular liner were evaluated. The FEM results showed an enhancement in the composite load carrying capacity, in agreement with the experimental results.

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23

Ishihara, Kazuhiko. "Highly lubricated polymer interfaces for advanced artificial hip joints through biomimetic design." Polymer Journal 47, no. 9 (June 10, 2015): 585–97. http://dx.doi.org/10.1038/pj.2015.45.

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24

Darwish, S. M., and A. M. Al-Samhan. "Optimization of Artificial Hip Joint Parameters." Materialwissenschaft und Werkstofftechnik 40, no. 3 (March 2009): 218–23. http://dx.doi.org/10.1002/mawe.200900430.

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25

Zhang, Dekun, Yueru Zhang, Kai Chen, Xinyue Zhang, and Handong Xu. "Reducing Taper Fretting Corrosion in Artificial Hip Joints Using a PEEK Femoral Head." Journal of Materials Engineering and Performance 30, no. 6 (April 19, 2021): 4619–28. http://dx.doi.org/10.1007/s11665-021-05766-5.

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26

Muster, Dominique, Makram Hage-Ali, Kyong-Tschong Rie, Thomas Stucky, Alain Cornet, and Didier Mainard. "Plasma Deposition, Plasma Coating, and Ion Implantation to Improve Metallic Implants and Prostheses." MRS Bulletin 25, no. 1 (January 2000): 25–32. http://dx.doi.org/10.1557/s0883769400064988.

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In spite of the success of surgical implants such as artificial hip joints, the materials used to make them are not always quite up to the job. Even stainless steel and titanium alloys can break under the enormous stress on load-bearing joints and corrode in the salty environment of the body. Deposits of inorganic salts can scratch weight-bearing surfaces, making artificial joints stiff and awkward. As a result, the lifetime of an implant is, at most, 10–15 years.Metallurgists and engineers often treat the surfaces of metal parts to improve their properties. The use of advanced surface-treatment techniques such as glow-discharge ion implantation, plasma deposition, and plasma coating can significantly improve the strength, hardness, and corrosion resistance of metal implants. At the same time, these methods should also improve the biocompati-bility of the implanted devices.Cobalt-based alloys are widely used for joint replacements. However, other compounds, such as titanium alloys, have excellent potential biocompatibility and interesting but imperfect mechanical properties. Stainless steel, namely 316L, has a good price-to-mechanical-properties ratio, but has the lowest corrosion resistance of the most commonly used metallic biomaterials.

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27

Semlitsch, M. "Twenty Years of Sulzer Experience with Artificial Hip Joint Materials." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 203, no. 3 (September 1989): 159–65. http://dx.doi.org/10.1243/pime_proc_1989_203_028_01.

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This paper reviews the development of hip prostheses over the past 20 years with particular reference to the materials employed. The material properties required are discussed and the alloys used in different designs of prostheses are described.

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28

SUGANO, Yoshihiro, Humihito NISHIMURA, kouji AWA, Sachie NASUGAWA, Takahiko MORI, and Hiroyoshi MATSUZAKI. "102 FEM Analysis of Dynamic Deformations and Stresses in Artificial Hip Joints of Functionally Graded Materials." Proceedings of Conference of Tohoku Branch 2001 (2001): 3–4. http://dx.doi.org/10.1299/jsmeth.2001.3.

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29

Annanto, Gilar Pandu, Eko Saputra, J. Jamari, Athanasius Priharyoto Bayuseno, Rifky Ismail, Mohammad Tauviqirrahman, and Iwan Budiwan Anwar. "Numerical Analysis Of Stress Distribution On Artificial Hip Joint Due To Jump Activity." E3S Web of Conferences 73 (2018): 12005. http://dx.doi.org/10.1051/e3sconf/20187312005.

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Due to degenarative disorder of articular cartilage, hip joint need to be replaced with an artificial hip joint. Currently, the modular design of artificial hip joint become popular in the procedure because the modular type’s provide flexibility for the surgeon. But, there were several report about the failure of modular version, and the failure was likely to happen on the neck part. The main focus of this research was to ensure the design safety of present artificial hip joint using FEM (Finite Element Method). The present artificial hip joint was loaded with force that occurred due to jump activity, and there were 3 type of materials that used in this research (Titanium Alloy (Ti-6Al-4V), Cobalt - Chrome alloy, and stainless steel (SS) 316L). The result is maximum stress that occurred on Ti-6Al-4V, Co-Cr alloy, and SS316L were 296.13 MPa, 294.02 MPa, and 294.51 MPa, respectively. The Ti-6Al-4V perform the best among the others with the safety factor of 2.7.

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30

Xie, Fang, and Zuo Min Liu. "Effect of Negative Poisson's Ratios of Auxetic UHMWPE on the Contact Mechanics in Artificial Hip Joint Replacement." Advanced Materials Research 399-401 (November 2011): 1559–63. http://dx.doi.org/10.4028/www.scientific.net/amr.399-401.1559.

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With the development of functional and structural materials, increasing interests have been shown in the field of biomaterials with a negative Poisson’s ratio (auxetic), which exhibit the unusual property of becoming thinner when compressed. This unusual property makes it potentially a synthetic replacement biomaterial with adequate mechanical property and wear resistance. In this study, the potential of applying the auxetic ultra-high molecular weight polyethylene (UHMWPE) for the artificial hip joint was discussed. The contact mechanics characteristics in artificial hip joint replacement under different Poisson's ratios of -1<μ≤0.5 were investigated and compared using the finite element method. The results show that Poisson’s ratio had great effect on the contact mechanics in artificial hip joint replacement. Therefore, the future work should focus on tailoring an auxetic UHMWPE with a suitable Poisson’s ratio for artificial hip joint replacements.

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31

Askari, Ehsan, Paulo Flores, Danè Dabirrahmani, and Richard Appleyard. "Study of the friction-induced vibration and contact mechanics of artificial hip joints." Tribology International 70 (February 2014): 1–10. http://dx.doi.org/10.1016/j.triboint.2013.09.006.

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Choudhury, Dipankar, Martin Vrbka, Azuddin Bin Mamat, Ian Stavness, Chanchal K. Roy, Rajshree Mootanah, and Ivan Krupka. "The impact of surface and geometry on coefficient of friction of artificial hip joints." Journal of the Mechanical Behavior of Biomedical Materials 72 (August 2017): 192–99. http://dx.doi.org/10.1016/j.jmbbm.2017.05.011.

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Shimozono, Takayoshi, Junji Ikeda, and Giuseppe Pezzotti. "Evaluation of Transformation Zone Around Propagating Cracks in Zirconia Biomaterials Using Raman Microprobe Spectroscopy." Key Engineering Materials 309-311 (May 2006): 1207–10. http://dx.doi.org/10.4028/www.scientific.net/kem.309-311.1207.

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Structural reliability, biocompatibility and bioinertness are fundamental prerequisites for bioceramics used in artificial hip and knee joints. Among structural properties, superior fracture toughness is necessary for guaranteeing high reliability during implantation lifetime. Bioinert ceramics employed in artificial joints are mainly limited to alumina and zirconia materials. In this paper, the critical crack-tip stress intensity factor, KI0, and the tetragonal-to-monoclinic phase-transformation behavior of a 3 mol % Y2O3-doped tetragonal ZrO2 polycrystals (3Y-TZP) were studied as a function of grain size. 3Y-TZP’s with four different grain sizes were prepared and the size and morphology of the monoclinic transformation zone generated around the tip of an indentation crack were analyzed by quantitative Raman microprobe spectroscopy. The stress intensity factor, KI0, was evaluated by the crack opening displacement (COD) method using a recently proposed equation for calculating the compliance of an indentation crack.

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34

von Skrbensky, Gobert, Karoline Mühlbacher, Emir Benca, Alexander Kolb, Reinhard Windhager, Georg Reischl, and Georg Reinisch. "Evaluation of Aerosol Electrospray Analysis of Metal-on-Metal Wear Particles from Simulated Total Joint Replacement." Sensors 19, no. 17 (August 30, 2019): 3751. http://dx.doi.org/10.3390/s19173751.

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Wear is a common cause for aseptic loosening in artificial joints. The purpose of this study was to develop an automated diagnostical method for identification of the number and size distribution of wear debris. For this purpose, metal debris samples were extracted from a hip simulator and then analyzed by the electrospray method combined with a differential mobility analyzer, allowing particle detection ranging from several nanometers up to 1 µm. Wear particles were identified with a characteristic peak at 15 nm. The electrospray setup was successfully used and validated for the first time to characterize wear debris from simulated total joint replacement. The advantages of this diagnostic method are its time- and financial efficiency and its suitability for testing of different materials.

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35

Kim, Yun Hae, Sung Won Yoon, Min Kyo Jung, Jin Cheol Ha, and Ri Ichi Murakami. "Design of Artificial Hip Joint by Carbon/PEEK Composites." Advanced Materials Research 774-776 (September 2013): 1336–41. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.1336.

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The purpose of this study is to determine the correct estimation of the various designs for artificial hip joint of the Carbon/PEEK composites. Validity of the study has been tested with the alternative materials for the metal-based materials for artificial hip joint. Moreover, this work evaluated the FEA according to the fiber ply orientation and the condition of load. The stem shape of two kinds was designed through the normal shape of the femur. Three load cases of 1kN, 2.5kN and 5kN were used for each of FEA model. In the case of general shape, the results by ply configuration showed that the stress of ply configuration I was lower compared to ply configuration II and III. On the other hand, in the case of curved shape, ply configuration II were lower compared to ply configuration I and III. The result was checked that the stress of curved shape was higher than that of the general shape in the load of 2.5kN. It could be confirmed then that a similar phenomenon would occur in the condition of 5kN load. However, in the case of ply configuration II, the stress of the curved shape was lower than the stress of the general shape.

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36

Anwar, Iwan Budiwan, Eko Saputra, J. Jamari, and Emile van der Heide. "Preliminary Study on the Biocompatibility of Stainless Steel 316L and UHMWPE Material." Advanced Materials Research 1123 (August 2015): 160–63. http://dx.doi.org/10.4028/www.scientific.net/amr.1123.160.

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Stainless steel AISI 316L (SS316L) and ultra-high molecular weight polyethylene (UHMWPE) are widely used materials for artificial hip joint components. The SS316L material is typically used for the acetabular cup, femoral head and the stem, while the UHMWPE material is used for the acetabular liner in an artificial hip joint. The aim of this work is to study the biocompatibility of SS316L and UHMWPE materials by implanting and installing these materials in the tissues of rabbits. The tissues around the implants were examined after eight weeks of the installment. Results showed that the reaction of the rabbit tissues around the implants was positive. It was concluded that the SS316L and the UHMWPE materials are biocompatible and the applications of these materials for implants seems conceivable.

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Oberbach, Thomas, Sabine Begand, Wilfried Glien, and Christian Kaddick. "Investigation of Aged Dispersion Ceramics by Means of Hip Simulator." Key Engineering Materials 361-363 (November 2007): 771–74. http://dx.doi.org/10.4028/www.scientific.net/kem.361-363.771.

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Wear of hip implants is a significant problem for the life expectancy of artificial joints. By using alumina ceramic on ceramic couplings the wear can be decreased. But for further improvement of the safety of THR the aim is the development of new ceramic materials. For orthopaedic applications an Alumina Toughened Zirconia Ceramic ATZ (80% ZrO2-20%Al2O3) and a Zirconia Toughened Alumina ZTA (25% ZrO2-75%Al2O3) were tested regarding their tribological behaviour by means of hip simulator testing after hydrothermal treatment. The absolute wear amount for the aged samples after 5 million cycles is slightly increased on a very low level, but even less wear than for common alumina pairings. In consideration of these excellent results both dispersion ceramics are highly suitable for long term applications.

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Prendergast, P. J., J. Monaghan, and D. Taylor. "Materials selection in the artificial hip joint using finite element stress analysis." Clinical Materials 4, no. 4 (January 1989): 361–76. http://dx.doi.org/10.1016/0267-6605(89)90016-4.

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NAKAMURA, Shizuki, Ryutaro HAYAMI, and Masaru HIGA. "Calibration of a joint forces measurement device on artificial hip joint." Proceedings of Conference of Kansai Branch 2021.96 (2021): 2706. http://dx.doi.org/10.1299/jsmekansai.2021.96.2706.

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Hembus, Jessica, Lisa Rößler, Mario Jackszis, Annett Klinder, Rainer Bader, and Carmen Zietz. "Influence of Metallic Deposition on Ceramic Femoral Heads on the Wear Behavior of Artificial Hip Joints: A Simulator Study." Materials 13, no. 16 (August 12, 2020): 3569. http://dx.doi.org/10.3390/ma13163569.

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Several retrieval studies have reported on metallic depositions on ceramic femoral heads, but the effect on the wear behavior of artificial hip joints has not been investigated in wear simulator studies. In the present study, retrieved ceramic heads with metallic depositions as third particles were tested against cross-linked ultra-high-molecular-weight polyethylene (UHMWPE) liners in a hip wear simulator. The amount of liner wear and expansion of metallic depositions on the heads were determined before and after wear testing with digital microscopy. The surface roughness of the heads was investigated in areas with and without metallic depositions by laser scanning microscopy. After five million load cycles, a non-significant reduction in the metallic formation on the retrieved heads was found. The metallic areas showed a higher surface roughness compared to unconcerned areas. The liners showed a higher wear rate of 1.57 ± 1.36 mg/million cycles for 28 mm heads and 2.42 ± 0.82 mg/million cycles for 36 mm heads with metallic depositions, in comparison with new ceramic heads with a 28 mm size ((−0.06 ± 0.89) mg/million cycles) and 36 mm size ((2.04 ± 0.46) mg/million cycles). Metallic transfer on ceramic heads can lead to an increased surface roughness and higher wear rates at the UHMWPE liners. Therefore, metallic contact of the ceramic femoral head should be avoided.

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Zhang, Liang Chi, E. C. S. Kiat, and Alokesh Pramanik. "A Briefing on the Manufacture of Hip Joint Prostheses." Advanced Materials Research 76-78 (June 2009): 212–16. http://dx.doi.org/10.4028/www.scientific.net/amr.76-78.212.

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To produce lifelong, harmless hip joint prostheses, considerable cross-disciplinary studies have been carried out. The research includes adaptability and sustainability of artificial materials to human body, selection of materials, precision fabrication and efficient replacement operation. This paper provides a brief review of some of these key aspects with some details in abrasive polishing.

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Fouly, Ahmed, Abdulaziz K. Assaifan, Ibrahim A. Alnaser, Omar A. Hussein, and Hany S. Abdo. "Evaluating the Mechanical and Tribological Properties of 3D Printed Polylactic-Acid (PLA) Green-Composite for Artificial Implant: Hip Joint Case Study." Polymers 14, no. 23 (December 4, 2022): 5299. http://dx.doi.org/10.3390/polym14235299.

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Artificial implants are very essential for the disabled as they are utilized for bone and joint function in orthopedics. However, materials used in such implants suffer from restricted mechanical and tribological properties besides the difficulty of using such materials with complex structures. The current study works on developing a new polymer green composite that can be used for artificial implants and allow design flexibility through its usage with 3D printing technology. Therefore, a natural filler extracted from corn cob (CC) was prepared, mixed homogeneously with the Polylactic-acid (PLA), and passed through a complete process to produce a green composite filament suit 3D printer. The corn cob particles were incorporated with PLA with different weight fractions zero, 5%, 10%, 15%, and 20%. The physical, mechanical, and tribological properties of the PLA-CC composites were evaluated. 3D finite element models were constructed to evaluate the PLA-CC composites performance on a real condition implant, hip joints, and through the frictional process. Incorporating corn cob inside PLA revealed an enhancement in the hardness (10%), stiffness (6%), compression ultimate strength (12%), and wear resistance (150%) of the proposed PLA-CC composite. The finite element results of both models proved an enhancement in the load-carrying capacity of the composite. The finite element results came in line with the experimental results.

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Besong, A. A., Z. M. Jin, and J. Fisher. "Importance of pin geometry on pin-on-plate wear testing of hard-on-hard bearing materials for artificial hip joints." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 215, no. 6 (June 1, 2001): 605–10. http://dx.doi.org/10.1243/0954411011536127.

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The contact mechanics between the pin and the plate used in simple wear screening tests were investigated in this study. Both soft-on-hard, such as ultra-high molecular weight polyethylene (UHMWPE)-on-metal or UHMWPE-on-ceramic, and hard-on-hard, such as metal-on-metal, bearing couples were considered. The effect of the pin geometry and the misalignment between the pin and the plate were investigated on the predicted contact pressure distribution at the bearing surfaces using the finite element method. It was demonstrated that in the case of soft-on-hard bearing couples, neither the geometrical discontinuity of the pin surface nor the misalignment could cause a significant increase in the contact stress. However, for hard-on-hard combinations, even with a very small misalignment of 0.5° between the pin and the plate, the geometrical discontinuity could lead to a more than tenfold increase in the predicted contact stress. This elevated contact stress may lead to a large scatter in the wear data and, even more importantly, structural damage of the bearing surfaces.

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ODA, Masafumi, Tasuku KANOMATA, and Toshiaki HARA. "Ultrasonic Technique for Contact Mechanism Estimation of an Artificial Hip Joint." Transactions of the Japan Society of Mechanical Engineers Series A 64, no. 624 (1998): 2093–99. http://dx.doi.org/10.1299/kikaia.64.2093.

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Dwi Lestari, Wahyu, Luluk Edahwati, Wiliandi Saputro, Ahmad Khairul Faizin, Radissa Dzaky Issafira, and Nurmala Shanti Dera. "Investigation The Effect of Clearance and Body Weight on The Contact Pressure of Metal on PCU Hip Prosthesis using Finite Element Method." E3S Web of Conferences 328 (2021): 07014. http://dx.doi.org/10.1051/e3sconf/202132807014.

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A common problem with artificial hip replacements is increased wear of the material in contact. Materials that are in contact result in contact pressure caused by the patient's daily activities so that it triggers wear. This study adopts a finite element method (FEM) to predict wear of the artificial hip joint, by studying the behavior of a hip joint prosthesis that has clearance under a certain load. The aim of this study was to observe contact as a function of clearance and body weight. The modeling uses metal as femoral head and polycarbonate urethane (PCU) material as the acetabular cup. Contact modeling as a hard material in contact with a deformable material. Four variations of clearance (0.001, 0.005, 0.01, 0.016) and three variations of body weight (500N, 700N, and 1000N) were used in this study. The simulation results show that the lower the distance and weight, the lower the contact pressure.

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WIERZCHOLSKI, Krzysztof. "SURFACE RANDOM PARAMETERS FOR ENDOPROSTHESIS LUBRICATION." Tribologia 265, no. 1 (February 29, 2016): 117–27. http://dx.doi.org/10.5604/01.3001.0010.7593.

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Within the last ten years in the European Union the number of bone fractures caused by the osteoarthritis increased twofold. More than 100000 hip or knee joints in total have been implanted in Germany during one year. Within ten years, 5% of them have failed by aseptic loosening. The non-invasive determination of friction forces and the control of their values during lubrication of cartilage cells on the superficial layer of human joint surfaces before implantation have a significant but not sufficient influence on the observation of the early abrasive wear of cartilage joint and the development of osteoporosis. From this fact was drawn the inspiration for the performed investigations referring the endoprosthesis surface parameters, because knowledge of the roughness of prosthesis surfaces and friction forces and their control methods makes it possible to provide the necessary random standard deviation of gap height and finally information about implantation possibility. This paper has been prepared based on the objective knowledge gained from the author’s experimental and theoretical experiences to represent the methodology and goal of the idea described in the study and to make possible a wider discussion on this subject for further developments during the realization of various bioengineering projects in the field of hydrodynamic artificial human and humanoid robots joints.

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Moro, Toru, Masayuki Kyomoto, Kazuhiko Ishihara, Kenichi Saiga, Masami Hashimoto, Sakae Tanaka, Hideya Ito, et al. "Grafting of poly(2-methacryloyloxyethyl phosphorylcholine) on polyethylene liner in artificial hip joints reduces production of wear particles." Journal of the Mechanical Behavior of Biomedical Materials 31 (March 2014): 100–106. http://dx.doi.org/10.1016/j.jmbbm.2013.03.011.

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Stamm, B., B. Küzün, O. Filipov, S. Reuter, I. Erdmann, F. Deuerler, D. Krix, K. Huba, H. Nienhaus, and V. Buck. "Adjustment of wear particle size distribution . of DLC coatings for tribological metal-on-metal pairing in artificial hip joints." Materialwissenschaft und Werkstofftechnik 40, no. 1-2 (January 2009): 98–100. http://dx.doi.org/10.1002/mawe.200800374.

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Szarek, Arkadiusz, Przemysław Postawa, Tomasz Stachowiak, Piotr Paszta, Joanna Redutko, Katarzyna Mordal, Aleksandra Kalwik, et al. "The Analysis of Polyethylene Hip Joint Endoprostheses Strength Parameters Changes after Use inside the Human Body." Materials 14, no. 22 (November 22, 2021): 7091. http://dx.doi.org/10.3390/ma14227091.

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The influence of dynamic loads resulting from human motor activity and electrocorrosion inside the human body on the strength parameters of artificial joint elements has not yet been investigated. Hip joint arthroplasty is the most common surgical procedure in the world that allows doctors to remove pain and restore motor skills in people with severe hip diseases, after accidents, and in the elderly. Based on the reports, this article assesses changes in the number of implanted endoprostheses in the years 2005–2019 and determines the trends and estimated changes in the number of implanted hip prostheses in the following decades. The study assesses changes in selected strength parameters of UHMW-PE polyethylene inserts of hip joint endoprostheses during their use in the human body. The research was carried out on appropriately collected samples from UHMW-PE cups removed from the human body with a known history and lifetime from 4 to 10 years. Patients’ body weight ranged from 735 [N] to 820 [N], and the declared physical activity was similar in the entire research group. As part of the research, the values of changes in dynamic modules and the mechanical loss coefficient were determined in relation to the share of the crystalline and amorphous phases of artificial UHMW-PE cups, removed from the human body after different periods of exploitation under similar operating conditions. The analysis of selected strength parameters was performed at a temperature of 40 °C, which corresponds to the working conditions inside the human body. On the basis of numerical studies, the influence of changes in material parameters on the deformation of the artificial acetabulum during the patient’s motor activity, which is one of the causes of fatigue destruction, was determined.

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Jones, William R. "Friction and Wear Properties of a Charnley Artificial Hip Joint." A S L E Transactions 28, no. 3 (January 1985): 389–99. http://dx.doi.org/10.1080/05698198508981635.

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