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Journal articles on the topic 'Artificial hip joints'

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1

Puccio, Francesca Di. "Biotribology of artificial hip joints." World Journal of Orthopedics 6, no. 1 (2015): 77. http://dx.doi.org/10.5312/wjo.v6.i1.77.

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2

Unsworth, A., M. J. Pearcy, E. F. T. White, and G. White. "Frictional Properties of Artificial Hip Joints." Engineering in Medicine 17, no. 3 (July 1988): 101–4. http://dx.doi.org/10.1243/emed_jour_1988_017_029_02.

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A new generation of hip replacements has been designed incorporating compliant layers to promote fluid film lubrication when the joints are implanted in patients. Tests in the Durham hip function simulator show that the friction in these joints is up to an order of magnitude lower than in currently used prostheses, and because this is due to complete separation of the rubbing surfaces, wear ought to be vastly reduced. Experiments have shown that the best results are achieved with compliant surfaces of hardness between 4 and 8 N/mm2. Such surfaces produce coefficients of friction of the order o
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3

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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4

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 experime
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5

Fitzgerald, Robert H. "Infections of Hip Prostheses and Artificial Joints." Infectious Disease Clinics of North America 3, no. 2 (June 1989): 329–38. http://dx.doi.org/10.1016/s0891-5520(20)30266-x.

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6

Pearcy, M. J. "A New Generation of Artificial Hip Joints." Engineering in Medicine 17, no. 4 (October 1988): 199–201. http://dx.doi.org/10.1243/emed_jour_1988_017_049_02.

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7

COHEN, J. "Wear of polyethylene in artificial hip joints." Journal of Bone and Joint Surgery. British volume 81-B, no. 1 (January 1999): 179. http://dx.doi.org/10.1302/0301-620x.81b1.0810179b.

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8

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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9

Unsworth, A., M. J. Pearcy, E. F. T. White, and G. White. "Soft layer lubrication of artificial hip joints." Journal of Synthetic Lubrication 5, no. 1 (April 1988): 55–72. http://dx.doi.org/10.1002/jsl.3000050105.

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10

Ilincic, S., N. Tungkunagorn, A. Vernes, G. Vorlaufer, P. A. Fotiu, and F. Franek. "Finite and boundary element method contact mechanics on rough, artificial hip joints." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 225, no. 11 (September 26, 2011): 1081–91. http://dx.doi.org/10.1177/1350650111406776.

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An extremely small roughness of constant height magnitude is considered on the femoral head of an artificial hip joint in order to determine the consequences of various regular shapes and clearances on the mechanical performance of this hip prosthesis via a properly coupled finite and boundary element method. In addition, different material combinations typical for widely used hard-on-hard and hard-on-soft hip joint replacements are also taken into account. By analysing the calculated pressure distribution and contact area between the femoral head and the acetabular cup in frictionless dry con
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11

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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12

Yao, J. Q., T. V. Parry, A. Unsworth, and J. L. Cunningham. "Contact Mechanics of Soft Layer Artificial Hip Joints: Part 2: Application to Joint Design." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 208, no. 4 (December 1994): 206–15. http://dx.doi.org/10.1243/pime_proc_1994_208_290_02.

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In this paper, the general solutions previously obtained for the contact mechanics of a soft layer artificial hip joint have been applied to the design of such joints. In particular, simple power-law design formulae have been generated for the prediction of the contact radius and the maximum Tresca shear stress within the elastomeric layer, when the aspect ratio varied from 1 to 20 (which covered the entire range of the aspect ratio for soft layer artificial hip joints). The effects of the layer thickness, Young's modulus of the layer and the equivalent radius of the joint upon the contact are
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13

Tang, Gang, Hong Jiang Yang, Dao Fang Chang, Dong Mei Wang, and Gao Feng Wei. "Human Kinematic Characteristics during Stair Descent." Applied Mechanics and Materials 155-156 (February 2012): 545–49. http://dx.doi.org/10.4028/www.scientific.net/amm.155-156.545.

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To design and manufacture better artificial joints, it is necessary to obtain the motion range of lower limb statistically. General Staircase as an experimental device had been designed; motion capture system and plantar force measurement system were used to establish a systematic measurement method during stairs descent. The variation and range of hip, knee and ankle joints of 40 samples along different directions in a cycle have been calculated. During stair decent, motion range of hip, knee and ankle joints reach maximum in the sagittal plane and are larger comparing to joint motion range i
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14

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 o
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15

Takadama, Hiroaki, and Mineo Mizuno. "A Simulated Synovial Fluid for Wear Characterization of Artificial Hip Joints by a Hip Joint Simulator." Key Engineering Materials 309-311 (May 2006): 1273–76. http://dx.doi.org/10.4028/www.scientific.net/kem.309-311.1273.

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The calf serum solution was defined as the international standard lubricant for wear characterization of artificial hip joints. It is, however, known that its composition varies according to age, manufacturing processes or production areas of bovine cattle, and that the difference in composition has large effect on the wear characterization. It was difficult to compare the results obtained by different laboratories. Therefore, it is desirable to develop an artificial lubricant whose composition can be always set to a specified value as an alternative to bovine serum. In the present study, the
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16

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
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17

JIN, Zhongmin, Sophie WILLIAMS, Joanne TIPPER, Eileen INGHAM, and John FISHER. "Tribology of Hip Joints from Natural Hip Joints, Cartilage Substitution, Artificial Replacements to Cartilage Tissue Engineering." Journal of Biomechanical Science and Engineering 1, no. 1 (2006): 69–81. http://dx.doi.org/10.1299/jbse.1.69.

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18

Nakanishi, Takefumi, Kunihide Shikata, Yu Cong Wang, Mikio Iwamoto, and Makoto Kondo. "The Characteristics of the New Ceramic Material for Artificial Joints." Key Engineering Materials 309-311 (May 2006): 1235–38. http://dx.doi.org/10.4028/www.scientific.net/kem.309-311.1235.

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A new zirconia-toughened alumina ceramic (JMM-ZTA) for a ceramic-on-ceramic hip replacement has been developed. The JMM-ZTA has a fracture toughness superior to zirconia, and the JMM-ZTA/JMM-ZTA combination has superior wear-resistant performance to alumina/alumina. Moreover, the JMM-ZTA shows an excellent crystalline phase stability. Therefore, the JMM-ZTA is believed to be useful for artificial hip prostheses.
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19

Auger, D. D., D. Dowson, J. Fisher, and Z.-M. Jin. "Friction and Lubrication in Cushion Form Bearings for Artificial Hip Joints." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 207, no. 1 (March 1993): 25–33. http://dx.doi.org/10.1243/pime_proc_1993_207_265_02.

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Two hip joint prostheses were designed and constructed to be elastohydrodynamically equivalent producing approximately equal initial contact areas and theoretical film thicknesses. One was made from conventional UHMWPE (ultra-high molecular weight polyethylene) and the other was a cushion component which had a low modulus layer introduced into the joint space. Friction measurements were carried out on a pendulum simulator apparatus and the two joints were compared. In addition the experimental results were compared with theoretical values of friction predicted from elastohydrodynamic lubricati
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20

Yao, J. Q. "Contact Mechanics of Soft Layer Artificial Hip Joints: Part 1: General Solutions." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 208, no. 4 (December 1994): 195–205. http://dx.doi.org/10.1243/pime_proc_1994_208_289_02.

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Unlike natural synovial joints, which are lubricated with a full fluid film lubrication mechanism, conventional artificial hip joints are lubricated with a mixed lubrication mechanism. Recently, however, a new generation of artificial hip joints employing compliant layers to mimic the compliance of articular cartilage in natural synovial joints have been developed to provide fluid film lubrication in these joints. While satisfactory lubrication can be achieved by employing soft layers, compliant thin layers are susceptible to the debonding between the soft layer and its stiffer substrate and l
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21

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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22

NARITA, Hirohisa, Kakeru HARUSAWA, Makoto YAGIHASHI, and Hideo FUJIMOTO. "521 A Wear Prediction System for Artificial Hip Joints." Proceedings of the Bioengineering Conference Annual Meeting of BED/JSME 2008.21 (2009): 225–26. http://dx.doi.org/10.1299/jsmebio.2008.21.225.

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23

Jin, Z. M. "Theoretical studies of elastohydrodynamic lubrication of artificial hip joints." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 220, no. 8 (August 2006): 719–27. http://dx.doi.org/10.1243/13506501jet144.

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24

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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25

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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26

Zhang, Xingen, Gang Shi, Xianjie Sun, Wei Zheng, Xueping Lin, and Guiqian Chen. "Factors Influencing the Outcomes of Artificial Hip Replacements." Cells Tissues Organs 206, no. 4-5 (2018): 254–62. http://dx.doi.org/10.1159/000500518.

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Hip replacement is one of the most successful surgeries in the clinic for the removal of painful joints. Hip osteoarthritis and femoral head necrosis are the 2 main reasons for hip replacement. Several factors are associated with the outcomes of surgery. Nonsurgical factors include gender, age, body mass index, prosthetic material, and risk factors. Surgical factors are anesthesia, postoperative complications, and rehabilitation. Considering the increasing demand for hip arthroplasty and the rise in the number of revision operations, it is imperative to understand factor-related progress and h
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27

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
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28

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 i
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29

OTSUKA, Kouichi, Yoshitaka NAKANISHI, and Hidehiko HIGAKI. "Influence of standing phase on wear of artificial hip joints." Proceedings of the Bioengineering Conference Annual Meeting of BED/JSME 2002.14 (2002): 71–72. http://dx.doi.org/10.1299/jsmebio.2002.14.71.

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30

Mattei, L., F. Di Puccio, B. Piccigallo, and E. Ciulli. "Lubrication and wear modelling of artificial hip joints: A review." Tribology International 44, no. 5 (May 2011): 532–49. http://dx.doi.org/10.1016/j.triboint.2010.06.010.

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31

Dowson, D., J. Fisher, Z. M. Jin, D. D. Auger, and B. Jobbins. "Design Considerations for Cushion Form Bearings in Artificial Hip Joints." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 205, no. 2 (June 1991): 59–68. http://dx.doi.org/10.1243/pime_proc_1991_205_269_02.

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32

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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33

Scholes, S. C., A. Unsworth, J. M. Blamey, I. C. Burges, E. Jones, and N. Smith. "Design aspects of compliant, soft layer bearings for an experimental hip prosthesis." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 219, no. 2 (February 1, 2005): 79–87. http://dx.doi.org/10.1243/095441105x9318.

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Currently, an artificial hip joint can be expected to last, on average, in excess of 15 years with failure due, in the majority of cases, to late aseptic loosening of the acetabular component. A realistic alternative to the problem of wear in conventional joints is the introduction of bearing surfaces that exhibit low wear and operate in the full fluid-film lubrication regime. Contact analyses and friction tests were performed on compliant layer joints (metal-on-polyurethane) and the design of a prototype ovine arthroplasty model was investigated. When optimized, these components have been sho
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34

Oberbach, Thomas, Sabine Begand, and Christian Kaddick. "Surface Resistance of Dispersion Ceramics against Third Body Abrasion." Key Engineering Materials 396-398 (October 2008): 161–64. http://dx.doi.org/10.4028/www.scientific.net/kem.396-398.161.

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Wear of the articulation partners in artificial joints for hip or knee is known to influence the in vivo survival rate of the implants. Wear amount can be strongly increased if third body wear occurs in the joint gap. Alumina ceramic is noted for a good wear resistance even under these worst case conditions. We tested the wear behaviour of the new dispersion ceramics ZTA (Zirconia Toughened Alumina) and ATZ (Alumina Toughened Zirconia) in comparison to alumina for the couplings ceramic on PE and ceramic on ceramic in a hip joint simulator in presence of third body particles.
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35

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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36

Malakhov, O. A., A. K. Morozov, E. V. Ogarev, and I. A. Kosovo. "Development of the hip joint in children and adolescents (experimental anatomical and radiological study)." N.N. Priorov Journal of Traumatology and Orthopedics 9, no. 3 (February 2, 2022): 70–75. http://dx.doi.org/10.17816/vto99952.

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Forty1 eight cadaveric hip joints from humans aged 0 to 18 years were examined to study the process of the joint formation. Polypositional radiologic and CT examinations with and without application of various techniques of artificial contrast were conducted as the first step of the study. Data obtained enabled to define more precisely the dynamics of anatomical changes during the hip joint growth, to detect the method of choice for their diagnosis and the alternative method of radiologic examination. All that is of great importance for the early detection of the pathologic changes as well as
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37

TANABE, Y., T. UCHIYAMA, H. YAMAOKA, and H. OHASHI. "LOAD TRANSMISSION THROUGH ARTIFICIAL HIP JOINTS DUE TO STRESS WAVE LOADING." International Journal of Modern Physics B 22, no. 09n11 (April 30, 2008): 1789–94. http://dx.doi.org/10.1142/s0217979208047420.

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Since wear of the polyethylene (Ultra High Molecular Weight Polyethylene or UHMWPE) acetabular cup is considered to be the main cause of loosening of the artificial hip joint, the cross-linked UHMWPE with high durability to wear has been developed. This paper deals with impact load transmission through the complex of an artificial hip joint consisting of a UHMWPE acetabular cup (or liner), a metallic femoral head and stem. Impact compressive tests on the complex were performed using the split-Hopkinson pressure bar apparatus. To investigate the effects of material (conventional or cross-linked
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38

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 corrosi
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39

Yang, Jianyu, Guanchao Li, Xiaofei Zhao, and Hualong Xie. "Research on Joint-Angle Prediction Based on Artificial Neural Network for Above-Knee Amputees." Sensors 21, no. 21 (October 29, 2021): 7199. http://dx.doi.org/10.3390/s21217199.

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In the current study, our research group proposed an asymmetric lower extremity exoskeleton to enable above-knee amputees to walk with a load. Due to the absence of shank and foot, the knee and ankle joint at the amputation side of the exoskeleton lack tracking targets, so it is difficult to realize the function of assisted walking when going up and downstairs. Currently, the use of lower-limb electromyography to predict the angles of lower limb joints has achieved remarkable results. However, the prediction effect was poor when only using electromyography from the thigh. Therefore, this paper
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40

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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41

SUN, ZHUO YAN, Kazuyoshi ISHIDA, and Katsuzo OKADA. "213 A Fundamental Study on Sliding Friction of Artificial Hip Joints." Proceedings of Conference of Kanto Branch 2001.7 (2001): 363–64. http://dx.doi.org/10.1299/jsmekanto.2001.7.363.

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42

KENMOTSU, Masashi, Kazuyoshi ISHIDA, and Katsuzo OKADA. "428 The effect of lubricants on wear for artificial hip joints." Proceedings of Yamanashi District Conference 2001 (2001): 139–40. http://dx.doi.org/10.1299/jsmeyamanashi.2001.139.

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43

Wang, F., C. Brockett, S. Williams, Z. Jin, and J. Fisher. "Friction and lubrication modelling of metal-on-metal artificial hip joints." Journal of Biomechanics 39 (January 2006): S139. http://dx.doi.org/10.1016/s0021-9290(06)83461-5.

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44

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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45

Kaulgud, A., A. Crugnola, T. Vasilos, and C. Sung. "Microstructural Characterization of a New Polytetrafluoroethylene for Artificial Hip Prosthesis." Microscopy and Microanalysis 6, S2 (August 2000): 1124–25. http://dx.doi.org/10.1017/s1431927600038113.

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All joints in the human body are subject to destruction by disease and trauma. Although the modem concept of joint replacements dates back to 1800's, polymeric material were not utilized till 1940's [1]. Early experiments were conducted with polymethacrylate and polytetrafluoroethylene. The results were disappointing with the polymeric material either quick fracturing or wearing at an extreme rapid rate. Microstructures were not well investigated as a function of processing conditions.The goal of this research is to eliminate the presence of oxygen within the components during its processing o
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46

Priyana Soemardi, Tresna, Agri Suwandi, Cholid Badri, Anwar Soefi Ibrahim, Sastra Kusuma Wijaya, and Januar Parlaungan Siregar. "Development of Total Hip Joint Replacement Prostheses Made by Local Material: An Introduction." E3S Web of Conferences 130 (2019): 01032. http://dx.doi.org/10.1051/e3sconf/201913001032.

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Total Hip Joint Replacement Surgery is the procedure of surgical removal of cartilage in the hip joints damaged by disease osteoarthritis to replaced with artificial components. Total Hip Joint Replacement has been indicated to relieve pain in the pelvis due to degenerative joint disease. In Indonesia, this procedure has been practised, but due to the cost of expensive products resulting in limited only to upper classify patients. The high prices caused by importing prostheses products, the technological capabilities and the difficulty to meet the standards of medical devices. The regulation o
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47

Aota, Shigeo, Shin-ichi Kikuchi, Hironori Ohashi, Naoko Kitano, Michiyuki Hakozaki, and Shin-ichi Konno. "Soft tissue reinforcement with a Leeds-Keio artificial ligament in revision surgery for dislocated total hip arthroplasty." HIP International 28, no. 3 (October 16, 2017): 324–29. http://dx.doi.org/10.5301/hipint.5000573.

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Introduction: Since dislocation after total hip arthroplasty (THA) greatly diminishes patient’s quality of life, the THA frequently needs revision. However, it is common for the dislocation not to heal even after reconstruction, but rather to become intractable. Methods: The 17 patients with dislocated THA, mean age of 71 years (range 51-87 years), who underwent a revision THA together with soft tissue reinforcement with a Leeds-Keio (LK) ligament were enrolled. The purposes of reinforcement with LK ligament were to restrict the internal rotation of the hip joint, and to encourage the formatio
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Ingham, E., J. Fisher, and M. H. Stone. "Wear of Historical Polyethylenes in Hip Prostheses. Biomechanical Success and a Biological Failure." HIP International 13, no. 2_suppl (January 2003): 17–27. http://dx.doi.org/10.1177/112070000301302s05.

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Polyethylene wear debris induced osteolysis is a major cause of failure in artificial hip joints. Sub micrometre size particles are taken up by macrophages which are stimulated to release osteolytic cytokines such as TNFα. This leads to bone resorption, loosening and failure. In vitro cell culture studies have shown particles in the size range 0.1 to 1 micrometre to be at least six times more reactive than larger particles. Studies of historically used gamma irradiated in air polyethylene show increased wear rate with damaged femoral heads and with aged and oxidised polyethylene. The aged and
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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 limitation
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Fattarizka, Almira Dea, and Hernastiti Sedya Utami. "Case Study: Antero-Posterior Projection of Pelvis Radiographic Examination Techniques in the Diagnosis of Hemiarthroplasty." Proceedings Series on Health & Medical Sciences 2 (January 26, 2022): 133–38. http://dx.doi.org/10.30595/pshms.v2i.235.

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Hemiarthroplasty is a surgical procedure to replace half of the hip joint with a prosthesis or artificial joint. The radiology procedure for the Hemiarthroplasty at Orthopaedic Hospital Purwokerto uses Antero-posterior projection of the pelvis. This projection is different from the routine projection, namely the Unilateral Antero-posterior Hip Projection. The purpose of this study is to determine the procedure for radiographic examination in cases of Hemiarthroplasty and to find out the reasons for using the Antero-posterior Pelvis projection to establish the patient's diagnosis. This type of
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