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Talebpour C, Fani F, Laliberté-Riverin S, Vaidya R, Salimnia H, Alamdari H, Ouellette M. Long-Term Prevention of Arthroplasty Infections via Incorporation of Activated AgNbO 3 Nanoparticles in PMMA Bone Cement. ACS APPLIED BIO MATERIALS 2024; 7:4039-4050. [PMID: 38830835 DOI: 10.1021/acsabm.4c00373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
We investigated the possibility of loading PMMA bone cement with antimicrobial nanostructured AgNbO3 particles to counter biofilm formation at the cement-tissue interface. We found that a formulation containing (1-4)% AgNbO3 showed high antibacterial activity against Gram-positive Staphylococcus aureus and Gram-negative Pseudomonas aeruginosa while not showing any toxicity against THP1 human cell lines. In addition, loading the particles did not impact the mechanical properties of the cement. The results thus obtained illustrate the potential of the approach to replace the current technique of mixing cement with conventional antibiotics, which is associated with shortcomings such as efficacy loss from antibiotic depletion.
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Affiliation(s)
- Cyrus Talebpour
- Department of Mining, Metallurgical and Materials Engineering, Universitė Laval, 1065, av. de la Médecine, Québec G1 V 0A6, Canada
| | - Fereshteh Fani
- Centre de recherche en infectiologie du CHU de Québec and Department of Microbiology and Immunology, Faculté de Medicine, Université Laval, 2705 Boul. Laurier, Québec G1V4G2, Canada
| | - Simon Laliberté-Riverin
- Department of Mining, Metallurgical and Materials Engineering, Universitė Laval, 1065, av. de la Médecine, Québec G1 V 0A6, Canada
| | - Rahul Vaidya
- School of Medicine, Wayne State University, 540 E, Canfield Avenue, Detroit, Michigan 48201, United States
| | - Hossein Salimnia
- Department of Pathology, Children's Hospital of Michigan, 3901 Beaubien, Detroit 48201, Michigan, United States
| | - Houshang Alamdari
- Department of Mining, Metallurgical and Materials Engineering, Universitė Laval, 1065, av. de la Médecine, Québec G1 V 0A6, Canada
| | - Marc Ouellette
- Centre de recherche en infectiologie du CHU de Québec and Department of Microbiology and Immunology, Faculté de Medicine, Université Laval, 2705 Boul. Laurier, Québec G1V4G2, Canada
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Liu D, Li H, Yang Y, Xu S, Zheng X, Liu J, Miyazaki T, Zhu Y. Preparation and characterizations of antibacterial poly(methyl methacrylate) bone cement via copolymerization with a quaternary ammonium monomer of dimethylaminotriclosan methacrylate. J Mech Behav Biomed Mater 2024; 151:106367. [PMID: 38194787 DOI: 10.1016/j.jmbbm.2023.106367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/30/2023] [Accepted: 12/31/2023] [Indexed: 01/11/2024]
Abstract
Poly (methyl methacrylate) (PMMA) bone cement relies on the loaded antibiotic to realize the antibacterial purpose. But the exothermic behavior during setting often makes temperature-sensitive antibiotics inactivated. It is necessary to develop new material candidates to replace antibiotics. In this study, a new quaternary ammonium methacrylate (QAM) monomer called dimethylaminetriclosan methacrylate (DMATCM) was designed by the quaternization between 2-(Dimethylamino)ethyl methacrylate and triclosan, then employed as the modifier to explore the feasibility of equipping bone cement with antibacterial activity, and to investigate the variations on the physical and biological performances brought by the substitution ratio of DMATCM to MMA. Results showed that DMATCM opened its C=C bonding to participate in the MMA polymerization, and the quaternary ammonium group helped it to perform broad-spectrum antibacterial property against both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli. With an increased substitution ratio of DMATCM to MMA, the glass transition temperatures, the maximum exothermic temperatures, and the contact angles of bone cements declined, but the residual monomer contents, the fluid uptakes, and the setting times under Vical indentation increased. Long-term soaking made almost no changes to the weight loss and the mechanical properties of DMATCM-modified cements with lower substitution ratios of 0∼20%, and the activation rather enhanced the strengths of uncured AMBC-4 and AMBC-5 samples. Owing to more DMATCM exposed on the cement surface, the inhibition ring diameter produced by modified cement was improved to a maximum of 28.09 mm, and MC3T3-E1 cells performed the cell viabilities all beyond 70% and healthy adhesion after 72 h co-culturing. Taking all measured properties and ISO standards into account, the antibacterial bone cement under the ratio of 10% performed better, besides its good bactericidal effect, the other properties satisfied the requirements for clinical application.
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Affiliation(s)
- Dong Liu
- Faculty of Materials Science and Technology, Kunming University of Science and Technology, No. 68 Wenchang Road, Lianhua Campus, Kunming, Yunnan, 650093, China.
| | - Haoyang Li
- Faculty of Materials Science and Technology, Kunming University of Science and Technology, No. 68 Wenchang Road, Lianhua Campus, Kunming, Yunnan, 650093, China.
| | - Yunping Yang
- Spine Surgery Department, Affiliated Hospital of Yunnan University, No.176 Qingnian Road, Wuhua District, Kunming, Yunnan, 650021, China.
| | - Shan Xu
- Faculty of Materials Science and Technology, Kunming University of Science and Technology, No. 68 Wenchang Road, Lianhua Campus, Kunming, Yunnan, 650093, China.
| | - Xihao Zheng
- Faculty of Materials Science and Technology, Kunming University of Science and Technology, No. 68 Wenchang Road, Lianhua Campus, Kunming, Yunnan, 650093, China.
| | - Jinkun Liu
- Faculty of Materials Science and Technology, Kunming University of Science and Technology, No. 68 Wenchang Road, Lianhua Campus, Kunming, Yunnan, 650093, China.
| | - Toshiki Miyazaki
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4, Hibikino, Wakamatsu-ku, Kitakyushu-shi, 808-0196, Japan.
| | - Yan Zhu
- Faculty of Materials Science and Technology, Kunming University of Science and Technology, No. 68 Wenchang Road, Lianhua Campus, Kunming, Yunnan, 650093, China.
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Alimohammadi M, Mirzabozorg H, Farahmand F, Kim S, Baril C, Ploeg HL. Statistical distribution of micro and macro pores in acrylic bone cement- effect of amount of antibiotic content. J Mech Behav Biomed Mater 2024; 150:106297. [PMID: 38100980 DOI: 10.1016/j.jmbbm.2023.106297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/02/2023] [Accepted: 12/02/2023] [Indexed: 12/17/2023]
Abstract
Aseptic loosening due to mechanical failure of bone cement is considered to be a leading cause of revision of joint replacement systems. Detailed quantified information on the number, size and distribution pattern of pores can help to obtain a deeper understanding of the bone cement's fatigue behavior. The objective of this study was to provide statistical descriptions for the pore distribution characteristics of laboratory bone cement specimens with different amounts of antibiotic contents. For four groups of bone cement (Palacos) specimens, containing 0.3, 0.6, 1.2 and 2.4 wt/wt% of telavancin antibiotic, seven samples per group were micro computed tomography scanned (38.97 μm voxel size). The images were first preprocessed in Mimics and then analyzed in Dragonfly, with the level of threshold being set such that single-pixel pores become visible. The normalized pore volume data of the specimens were then used to extract the logarithmic histograms of the pore densities for antibiotic groups, as well as their three-parameter Weibull probability density functions. Statistical comparison of the pore distribution data of the antibiotic groups using the Mann-Whitney non-parametric test revealed a significantly larger porosity (p < 0.05) in groups with larger added antibiotic contents (2.4 and 0.6 wt/wt% vs 0.3 wt/wt%). Further analysis revealed that this effect was associated with the significantly larger frequency of micropores of 0.1-0.5 mm diameter (p < 0.05) in groups with larger antibiotic content (2.4 wt/wt% vs and 0.6 and 0.3 wt/wt%), implying that the elution of the added antibiotic produces micropores in this diameter range mainly. Based on this observation and the fatigue test results in the literature, it was suggested that micropore clusters have a detrimental effect on the mechanical properties of bone cement and play a major role in initiating fatigue cracks in highly antibiotic added specimens.
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Affiliation(s)
- Mahsa Alimohammadi
- Civil Engineering Department, KN Toosi University of Technology, Tehran, Iran; Department of Mechanical and Materials Engineering, Queen's University, Kingston, ON, Canada
| | - Hassan Mirzabozorg
- Civil Engineering Department, KN Toosi University of Technology, Tehran, Iran
| | - Farzam Farahmand
- Mechanical Engineering Department, Sharif University of Technology, Tehran, Iran
| | - Sunjung Kim
- Department of Orthopaedic Surgery, University of Illinois Chicago, Chicago, IL, USA
| | - Caroline Baril
- Department of Mechanical and Materials Engineering, Queen's University, Kingston, ON, Canada
| | - Heidi-Lynn Ploeg
- Department of Mechanical and Materials Engineering, Queen's University, Kingston, ON, Canada.
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Kim S, Baril C, Rudraraju S, Ploeg HL. Influence of Porosity on Fracture Toughness and Fracture Behavior of Antibiotic-Loaded PMMA Bone Cement. J Biomech Eng 2022; 144:1114803. [PMID: 34286825 DOI: 10.1115/1.4051848] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Indexed: 11/08/2022]
Abstract
Aseptic loosening is the most common reason for the long-term revision of cemented arthroplasties with fracture of the cement being a postulated cause or contributing factor. In our previous studies we showed that adding an antibiotic to a polymethylmethacrylate (PMMA) bone cement led to detrimental effects on various mechanical properties of the cement such as bending strength, compressive strength and fracture toughness (KIC). This finding implied that the mechanical failure of antibiotic-loaded PMMA bone cement was influenced by its pore volume fraction. Up to now this aspect has not been studied. Hence the purposes of this study were to determine (1) the influence of antibiotic (telavancin) loading on the KIC of a widely used PMMA bone cement brand (Palacos®R) and (2) the influence of pore size and pore distribution on the fracture behavior of the KIC specimens. For (2) both experimental and numerical methods (extended finite element method [XFEM]) were used allowing a comparison between the two sets of results. We found that: (1) KIC decreased with increased porosity with the drop (relative to the value for the control cement) being significant when the telavancin loading was 4.8 wt/wt % (2 g of telavancin added to 40 g of control cement powder); (2) there was a critical pore size above which there was a significant decrease in KIC and is 1 mm; (3) crack propagation was strongly influenced by pore size and pore locations (pore-pore interactions); and, (4) there was good agreement between the experimental and XFEM results. The implications of these findings for the use of a telavancin-loaded PMMA bone cement in cemented total joint arthroplasties are commented upon.
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Affiliation(s)
- Sunjung Kim
- Mechanical Engineering, University of Wisconsin - Madison, Madison, WI 60085
| | - Caroline Baril
- Mechanical and Materials Engineering, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Shiva Rudraraju
- Mechanical Engineering, University of Wisconsin - Madison, Madison, WI 60085
| | - Heidi-Lynn Ploeg
- Mechanical Engineering, University of Wisconsin - Madison, Madison, WI 60085; Department of Mechanical and Materials Engineering, Queen's University, McLaughlin Hall, 130 Stuart St., Room 303B, Kingston, ON K7L 3N6, Canada
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5
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Ayre WN, Scully N, Elford C, Evans BA, Rowe W, Rowlands J, Mitha R, Malpas P, Manti P, Holt C, Morgan-Jones R, Birchall JC, Denyer SP, Evans SL. Alternative radiopacifiers for polymethyl methacrylate bone cements: Silane-treated anatase titanium dioxide and yttria-stabilised zirconium dioxide. J Biomater Appl 2021; 35:1235-1252. [PMID: 33573445 PMCID: PMC8058833 DOI: 10.1177/0885328220983797] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Poly (methyl methacrylate) (PMMA) bone cement is widely used for anchoring joint arthroplasties. In cement brands approved for these procedures, micron-sized particles (usually barium sulphate, BaSO4) act as the radiopacifier. It has been postulated that these particles act as sites for crack initiation and subsequently cement fatigue. This study investigated whether alternative radiopacifiers, anatase titanium dioxide (TiO2) and yttria-stabilised zirconium dioxide (ZrO2), could improve the in vitro mechanical, fatigue crack propagation and biological properties of polymethyl methacrylate (PMMA) bone cement and whether their coating with a silane could further enhance cement performance. Cement samples containing 0, 5, 10, 15, 20 and 25%w/w TiO2 or ZrO2 and 10%w/w silane-treated TiO2 or ZrO2 were prepared and characterised in vitro in terms of radiopacity, compressive and bending strength, bending modulus, fatigue crack propagation, hydroxyapatite forming ability and MC3T3-E1 cell attachment and viability. Cement samples with greater than 10%w/w TiO2 and ZrO2 had a similar radiopacity to the control 10%w/w BaSO4 cement and commercial products. The addition of TiO2 and ZrO2 to bone cement reduced the bending strength and fracture toughness and increased fatigue crack propagation due to the formation of agglomerations and voids. Silane treating TiO2 reversed this effect, enhancing the dispersion and adhesion of particles to the PMMA matrix and resulted in improved mechanical properties and fatigue crack propagation resistance. Silane-treated TiO2 cements had increased nucleation of hydroxyapatite and MC3T3-E1 cell attachment in vitro, without significantly compromising cell viability. This research has demonstrated that 10%w/w silane-treated anatase TiO2 is a promising alternative radiopacifier for PMMA bone cement offering additional benefits over conventional BaSO4 radiopacifiers.
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Affiliation(s)
| | | | | | | | - Wendy Rowe
- School of Dentistry, Cardiff University, Cardiff, UK
| | - Jeff Rowlands
- School of Engineering, Cardiff University, Cardiff, UK
| | - Ravi Mitha
- School of Engineering, Cardiff University, Cardiff, UK
| | - Paul Malpas
- School of Engineering, Cardiff University, Cardiff, UK
| | | | - Cathy Holt
- School of Engineering, Cardiff University, Cardiff, UK
| | - Rhidian Morgan-Jones
- Department of Trauma & Orthopaedics, Cardiff & Vale University Health Board, Cardiff, UK
| | - James C Birchall
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, UK
| | - Stephen P Denyer
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, UK
| | - Sam L Evans
- School of Engineering, Cardiff University, Cardiff, UK
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Soleymani Eil Bakhtiari S, Bakhsheshi-Rad HR, Karbasi S, Tavakoli M, Razzaghi M, Ismail AF, RamaKrishna S, Berto F. Polymethyl Methacrylate-Based Bone Cements Containing Carbon Nanotubes and Graphene Oxide: An Overview of Physical, Mechanical, and Biological Properties. Polymers (Basel) 2020; 12:polym12071469. [PMID: 32629907 PMCID: PMC7407371 DOI: 10.3390/polym12071469] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 02/07/2023] Open
Abstract
Every year, millions of people in the world get bone diseases and need orthopedic surgery as one of the most important treatments. Owing to their superior properties, such as acceptable biocompatibility and providing great primary bone fixation with the implant, polymethyl methacrylate (PMMA)-based bone cements (BCs) are among the essential materials as fixation implants in different orthopedic and trauma surgeries. On the other hand, these BCs have some disadvantages, including Lack of bone formation and bioactivity, and low mechanical properties, which can lead to bone cement (BC) failure. Hence, plenty of studies have been concentrating on eliminating BC failures by using different kinds of ceramics and polymers for reinforcement and also by producing composite materials. This review article aims to evaluate mechanical properties, self-setting characteristics, biocompatibility, and bioactivity of the PMMA-based BCs composites containing carbon nanotubes (CNTs), graphene oxide (GO), and carbon-based compounds. In the present study, we compared the effects of CNTs and GO as reinforcement agents in the PMMA-based BCs. Upcoming study on the PMMA-based BCs should concentrate on trialing combinations of these carbon-based reinforcing agents as this might improve beneficial characteristics.
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Affiliation(s)
- Sanaz Soleymani Eil Bakhtiari
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran; (S.S.E.B.); (M.R.)
| | - Hamid Reza Bakhsheshi-Rad
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran; (S.S.E.B.); (M.R.)
- Correspondence: or (H.R.B.-R.); (F.B.)
| | - Saeed Karbasi
- Biomaterials and Tissue Engineering Department, School of Advanced Technologes in Medicine, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran;
| | - Mohamadreza Tavakoli
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Mahmood Razzaghi
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran; (S.S.E.B.); (M.R.)
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Center (AMTEC), Universiti Teknologi Malaysia, Skudai, Johor Bahru, Johor 81310, Malaysia;
| | - Seeram RamaKrishna
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore;
| | - Filippo Berto
- Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
- Correspondence: or (H.R.B.-R.); (F.B.)
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Pacheco-Salazar O, Wakayama S, Can-Herrera L, Dzul-Cervantes M, Ríos-Soberanis C, Cervantes-Uc J. Damage Evolution and Fracture Events Sequence Analysis of Core-Shell Nanoparticle Modified Bone Cements by Acoustic Emission Technique. Polymers (Basel) 2020; 12:polym12010208. [PMID: 31952108 PMCID: PMC7023568 DOI: 10.3390/polym12010208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/07/2020] [Accepted: 01/11/2020] [Indexed: 11/17/2022] Open
Abstract
In this research, damage in bone cements that were prepared with core-shell nanoparticles was monitored during four-point bending tests through an analysis of acoustic emission (AE) signals. The core-shell structure consisted of poly(butyl acrylate) (PBA) as rubbery core and methyl methacrylate/styrene copolymer (P(MMA-co-St)) as a glassy shell. Furthermore, different core-shell ratios 20/80, 30/70, 40/60, and 50/50 were prepared and incorporated into the solid phase of the bone cement formulation at 5, 10, and 15 wt %, respectively. The incorporation of a rubbery phase into the bone cement formulation decreased the bending strength and bending modulus. The AE technique revealed that the nanoparticles play an important role on the fracture mechanism of the bone cement, since a higher amount of AE signals (higher amplitude and energy) were obtained from bone cements that were prepared with the nanoparticles in comparison with those without nanoparticles (the reference bone cement). The SEM examination of the fracture surfaces revealed that all of the bone cement formulations exhibited stress whitening, which arises from the development of crazes before the crack propagation. Finally, the use of the AE technique and the fracture surface analysis by SEM enabled insight into the fracture mechanisms that are presented during four-point bending test of the bone cement containing nanoparticles.
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Affiliation(s)
- O.F. Pacheco-Salazar
- Instituto Tecnológico Superior de Calkiní en el Estado de Campeche, Avenida Ah Canul, s/n por Carretera Federal, C.P. 24900, Calkiní, Campeche, Mexico;
- Correspondence: ; Tel.: +52-999-1444-091
| | - Shuichi Wakayama
- Department of Mechanical Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan;
| | - L.A. Can-Herrera
- Departamento de Física Aplicada, CINVESTAV-IPN, Unidad Mérida, Carretera Antigua a Progreso km 6, Cordemex, C.P. 97310, Mérida, Yucatán, Mexico;
| | - M.A.A. Dzul-Cervantes
- Instituto Tecnológico Superior de Calkiní en el Estado de Campeche, Avenida Ah Canul, s/n por Carretera Federal, C.P. 24900, Calkiní, Campeche, Mexico;
| | - C.R. Ríos-Soberanis
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43 No. 130 x 32 y 34, Chuburná de Hidalgo, C.P. 97205, Mérida, Yucatán, Mexico; (C.R.R.-S.); (J.M.C.-U.)
| | - J.M. Cervantes-Uc
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, A.C., Calle 43 No. 130 x 32 y 34, Chuburná de Hidalgo, C.P. 97205, Mérida, Yucatán, Mexico; (C.R.R.-S.); (J.M.C.-U.)
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Browne M, Shearwood-Porter N, Sinclair I. The role of microconstituents on the fatigue failure of bone cement. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.proeng.2018.02.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Acoustic emission in orthopaedics: A state of the art review. J Biomech 2016; 49:4065-4072. [DOI: 10.1016/j.jbiomech.2016.10.038] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 10/23/2016] [Accepted: 10/25/2016] [Indexed: 11/30/2022]
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10
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Liu Z, Tang Y, Kang T, Rao M, Li K, Wang Q, Quan C, Zhang C, Jiang Q, Shen H. Synergistic effect of HA and BMP-2 mimicking peptide on the bioactivity of HA/PMMA bone cement. Colloids Surf B Biointerfaces 2015; 131:39-46. [DOI: 10.1016/j.colsurfb.2015.04.032] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 03/25/2015] [Accepted: 04/13/2015] [Indexed: 12/28/2022]
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11
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Evaluation of damage progression and mechanical behavior under compression of bone cements containing core–shell nanoparticles by using acoustic emission technique. J Mech Behav Biomed Mater 2015; 46:137-47. [DOI: 10.1016/j.jmbbm.2015.02.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/23/2015] [Accepted: 02/25/2015] [Indexed: 11/20/2022]
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12
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Tozzi G, Zhang QH, Tong J. Microdamage assessment of bone-cement interfaces under monotonic and cyclic compression. J Biomech 2014; 47:3466-74. [DOI: 10.1016/j.jbiomech.2014.09.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 09/01/2014] [Accepted: 09/14/2014] [Indexed: 11/28/2022]
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13
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Fang C, Hou R, Zhou K, Hua F, Cong Y, Zhang J, Fu J, Cheng YJ. Surface functionalized barium sulfate nanoparticles: controlled in situ synthesis and application in bone cement. J Mater Chem B 2014; 2:1264-1274. [DOI: 10.1039/c3tb21544j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Controlled in situ synthesis of MSAH-coated BaSO4 nanoparticles improves the mechanical properties and in vitro biocompatibility of the bone cements.
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Affiliation(s)
- Chao Fang
- Polymers and Composites Division
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo, P. R. China
- Faculty of Materials Science and Chemical Engineering
| | - Ruixia Hou
- Polymers and Composites Division
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo, P. R. China
| | - Kefeng Zhou
- Department of Radiology
- Nanjing Drum Tower Hospital
- The Affiliated Hospital of Nanjing University Medical School
- Nanjing, P. R. China
| | - Feibin Hua
- School of Chemical Engineering
- Ningbo University of Technology
- Ningbo, P. R. China
| | - Yang Cong
- School of Chemical Engineering
- Ningbo University of Technology
- Ningbo, P. R. China
| | - Jianfeng Zhang
- Faculty of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo, P. R. China
| | - Jun Fu
- Polymers and Composites Division
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo, P. R. China
| | - Ya-Jun Cheng
- Polymers and Composites Division
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo, P. R. China
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Gonçalves G, Portolés MT, Ramírez-Santillán C, Vallet-Regí M, Serro AP, Grácio J, Marques PAAP. Evaluation of the in vitro biocompatibility of PMMA/high-load HA/carbon nanostructures bone cement formulations. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:2787-2796. [PMID: 23963685 DOI: 10.1007/s10856-013-5030-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 08/12/2013] [Indexed: 06/02/2023]
Abstract
Although commercially-available poly(methyl methacrylate) bone cement is widely used in total joint replacements, it has many shortcomings, a major one being that it does not osseointegrate with the contiguous structures. We report on the in vitro evaluation of the biocompatibility of modified formulations of the cement in which a high loading of hydroxyapatite (67 wt/wt%), an extra amount of benzoyl peroxide, and either 0.1 wt/wt% functionalized carbon nanotubes or 0.5 wt/wt% graphene oxide was added to the cement powder and an extra amount of dimethyl-p-toluidiene was added to the cement's liquid monomer. This evaluation was done using mouse L929 fibroblasts and human Saos-2 osteoblasts. For each combination of cement formulation and cell type, there was high cell viability, low apoptosis, and extensive spread on disc surfaces. Thus, these two cement formulations may have potential for use in the clinical setting.
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Affiliation(s)
- Gil Gonçalves
- TEMA - NRD, Mechanical Engineering Department and Aveiro Institute of Nanotechnology (AIN), University of Aveiro, 3810-193, Aveiro, Portugal,
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15
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Shearwood-Porter N, Browne M, Sinclair I. Micromechanical characterisation of failure in acrylic bone cement: The effect of barium sulphate agglomerates. J Mech Behav Biomed Mater 2012; 13:85-92. [DOI: 10.1016/j.jmbbm.2012.04.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Revised: 04/05/2012] [Accepted: 04/12/2012] [Indexed: 11/16/2022]
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Gonçalves G, Cruz SMA, Ramalho A, Grácio J, Marques PAAP. Graphene oxide versus functionalized carbon nanotubes as a reinforcing agent in a PMMA/HA bone cement. NANOSCALE 2012; 4:2937-2945. [PMID: 22499394 DOI: 10.1039/c2nr30303e] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Graphene oxide (GO) and functionalized carbon nanotubes (f-CNTs) (each in the concentration range of 0.01-1.00 wt/wt%) were investigated as the reinforcing agent in a poly(methyl methacrylate) (PMMA)/hydroxyapatite (HA) bone cement. Mixed results were obtained for the changes in the mechanical properties determined (storage modulus, bending strength, and elastic modulus) for the reinforced cement relative to the unreinforced counterpart; that is, some property changes were increased while others were decreased. We postulate that this outcome is a consequence of the fact that each of the nanofillers hampered the polymerization process in the cement; specifically, the nanofiller acts as a scavenger of the radicals produced during polymerization reaction due to the delocalized π-bonds. Results obtained from the chemical structure and polymer chain size distribution determined, respectively, by nuclear magnetic resonance and size exclusion chromatography analysis, on the polymer extracted from the specimens support the postulated mechanism. Furthermore, in the case of the 0.5 wt/wt% GO-reinforced cement, we showed that when the concentration of the radical species in the PMMA bone cement was doubled, mechanical properties markedly improved (relative to the value in the unreinforced cement), suggesting suppression of the aforementioned scavenger activity.
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Affiliation(s)
- Gil Gonçalves
- Nanotechnology Research Division, Center for Mechanical Technology & Automation, University of Aveiro, 3810-193 Aveiro, Portugal
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Dang K, Pelletier MH, Walsh WR. Factors affecting flexural strength in cement within cement revisions. J Arthroplasty 2011; 26:1540-8. [PMID: 21414744 DOI: 10.1016/j.arth.2011.01.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Accepted: 01/23/2011] [Indexed: 02/01/2023] Open
Abstract
Cement within cement revisions provide substantial benefits for conventional revision yet remains uncommon possibly because of the perceived weakness of the cement-cement interface. This study investigated the flexural strength of beams composed of 2 different cements, exploring the factors of pore size, fracture location, viscosity, and the surface roughness of the interface. We found no significant difference when comparing combinations of different cements (P = .30), varying pore sizes (P = .13), or surface roughness (P = .39). Differences in fracture locations and viscosity combinations approached statistical significance (P = .08 and .05, respectively). Our findings suggest strong bonding between cements at the interface, with other factors being more important causes of weakness. Thus, we recommend that the strength of the cement-cement interface should not be a factor when considering such revisions.
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Affiliation(s)
- Kieran Dang
- Surgical and Orthopaedic Research Laboratories, University of New South Wales, Sydney, New South Wales, Australia
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Zivic F, Babic M, Grujovic N, Mitrovic S, Favaro G, Caunii M. Effect of vacuum-treatment on deformation properties of PMMA bone cement. J Mech Behav Biomed Mater 2011; 5:129-38. [PMID: 22100087 DOI: 10.1016/j.jmbbm.2011.08.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 07/26/2011] [Accepted: 08/02/2011] [Indexed: 02/07/2023]
Abstract
Deformation behavior of polymethyl methacrylate (PMMA) bone cement is explored using microindentation. Two types of PMMA bone cement were prepared. Vacuum treated samples were subjected to the degassing of the material under vacuum of 270 mbar for 35 s, followed by the second degassing under vacuum of 255 mbar for 35 s. Air-cured samples were left in ambient air to cool down and harden. All samples were left to age for 6 months before the test. The samples were then subjected to the indentation fatigue test mode, using sharp Vickers indenter. First, loading segment rise time was varied in order to establish time-dependent behavior of the samples. Experimental data showed that viscous part of the deformation can be neglected under the observed test conditions. The second series of microindentation tests were realized with variation of number of cycles and indentation hardness and modulus were obtained. Approximate hardness was also calculated using analysis of residual impression area. Porosity characteristics were analyzed using CellC software. Scanning electron microscopy (SEM) analysis showed that air-cured bone cement exhibited significant number of large voids made of aggregated PMMA beads accompanied by particles of the radiopaque agent, while vacuum treated samples had homogeneous structure. Air-cured samples exhibited variable hardness and elasticity modulus throughout the material. They also had lower hardness values (approximately 65-100 MPa) than the vacuum treated cement (approximately 170 MPa). Porosity of 5.1% was obtained for vacuum treated cement and 16.8% for air-cured cement. Extensive plastic deformation, microcracks and craze whitening were produced during indentation of air-cured bone cement, whereas vacuum treated cement exhibited no cracks and no plastic deformation.
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Affiliation(s)
- Fatima Zivic
- Faculty of Mechanical Engineering, Kragujevac, Serbia.
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Browne M, Jeffers JRT, Saffari N. Nondestructive evaluation of bone cement and bone cement/metal interface failure. J Biomed Mater Res B Appl Biomater 2009; 92:420-9. [PMID: 19927335 DOI: 10.1002/jbm.b.31530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
To quantify the failure mechanisms related to the loosening of cemented hip joint replacements, novel techniques, capable of monitoring, nondestructively, the initiation and progression of failure during in vitro fatigue tests, were employed. Fatigue testing of model cement and cement-stem test pieces was monitored using acoustic emission (AE) sensors. Once damage was detected, an ultrasonic imaging system was used to obtain an image of the damage site and to measure the stiffness of the affected region. This method of examination provided a detailed insight into the internal crack propagation and delamination patterns. Initial work was conducted on bulk cement specimens subjected to bending and tension. The second stage of the work examined a model stem-cement interface under tensile opening loading conditions. A novel ultrasonic technique was used to measure the bond quality at the cement-metal interface. Progressive delamination was identified over time, and the AE technique was able to identify critical areas of delamination before they could be identified conclusively by ultrasonic imaging. The work has demonstrated the potential of the AE technique as a tool for the preclinical assessment of total hip replacements.
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Affiliation(s)
- M Browne
- Bioengineering Sciences Research Group, School of Engineering Sciences, University of Southampton, Southampton, SO17 1BJ, UK.
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