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Chang SY, Kang DH, Cho SK. Innovative Developments in Lumbar Interbody Cage Materials and Design: A Comprehensive Narrative Review. Asian Spine J 2024; 18:444-457. [PMID: 38146053 PMCID: PMC11222887 DOI: 10.31616/asj.2023.0407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 12/27/2023] Open
Abstract
This review comprehensively examines the evolution and current state of interbody cage technology for lumbar interbody fusion (LIF). This review highlights the biomechanical and clinical implications of the transition from traditional static cage designs to advanced expandable variants for spinal surgery. The review begins by exploring the early developments in cage materials, highlighting the roles of titanium and polyetheretherketone in the advancement of LIF techniques. This review also discusses the strengths and limitations of these materials, leading to innovations in surface modifications and the introduction of novel materials, such as tantalum, as alternative materials. Advancements in three-dimensional printing and surface modification technologies form a significant part of this review, emphasizing the role of these technologies in enhancing the biomechanical compatibility and osseointegration of interbody cages. In addition, this review explores the increase in biodegradable and composite materials such as polylactic acid and polycaprolactone, addressing their potential to mitigate long-term implant-related complications. A critical evaluation of static and expandable cages is presented, including their respective clinical and radiological outcomes. While static cages have been a mainstay of LIF, expandable cages are noted for their adaptability to the patient's anatomy, reducing complications such as cage subsidence. However, this review highlights the ongoing debate and the lack of conclusive evidence regarding the superiority of either cage type in terms of clinical outcomes. Finally, this review proposes future directions for cage technology, focusing on the integration of bioactive substances and multifunctional coatings and the development of patient-specific implants. These advancements aim to further enhance the efficacy, safety, and personalized approach of spinal fusion surgeries. Moreover, this review offers a nuanced understanding of the evolving landscape of cage technology in LIF and provides insights into current practices and future possibilities in spinal surgery.
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Affiliation(s)
- Sam Yeol Chang
- Department of Orthopaedic Surgery, Seoul National University Hospital, Seoul,
Korea
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul,
Korea
| | - Dong-Ho Kang
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul,
Korea
- Department of Orthopaedic Surgery, Spine Center, Samsung Medical Center, Seoul,
Korea
| | - Samuel K. Cho
- Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY,
USA
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Smirnov A, Yanushevich O, Krikheli N, Solis Pinargote NW, Peretyagin P, Grigoriev S, Alou L, Sevillano D, López-Piriz R, Guitian F, Bartolomé JF. 3Y-TZP/Ta Biocermet as a Dental Material: An Analysis of the In Vitro Adherence of Streptococcus Oralis Biofilm and an In Vivo Pilot Study in Dogs. Antibiotics (Basel) 2024; 13:175. [PMID: 38391561 PMCID: PMC10886202 DOI: 10.3390/antibiotics13020175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/24/2024] Open
Abstract
The surface adhesion of bacterial cells and the in vivo biocompatibility of a new ceramic-metal composite made of zirconium dioxide and tantalum were evaluated. Within the framework of an in vitro study using the crystal violet staining and colony counting methods, a relatively similar adhesion of Streptococcus oralis to the 3Y-TZP/Ta biocermet (roughness Ra = 0.12 ± 0.04 µm) and Ti-Al6-V4 titanium alloy (Ra = 0.04 ± 0.01 µm) was found. In addition, in an in vivo preliminary study focused on the histological analysis of a series of rods implanted in the jaws of beagle dogs for a six-month period, the absence of any fibrous tissue or inflammatory reaction at the interface between the implanted 3Y-TZP/Ta biocermets and the new bone was found. Thus, it can be concluded that the developed ceramic-metal biocomposite may be a promising new material for use in dentistry.
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Affiliation(s)
- Anton Smirnov
- Spark Plasma Sintering Research Laboratory, Moscow State University of Technology "STANKIN", Vadkovsky per. 1, Moscow 127055, Russia
| | - Oleg Yanushevich
- Scientific Department, A.I. Evdokimov Moscow State University of Medicine and Dentistry, Delegatskaya St., 20, p. 1, Moscow 127473, Russia
| | - Natella Krikheli
- Scientific Department, A.I. Evdokimov Moscow State University of Medicine and Dentistry, Delegatskaya St., 20, p. 1, Moscow 127473, Russia
| | - Nestor Washington Solis Pinargote
- Spark Plasma Sintering Research Laboratory, Moscow State University of Technology "STANKIN", Vadkovsky per. 1, Moscow 127055, Russia
| | - Pavel Peretyagin
- Spark Plasma Sintering Research Laboratory, Moscow State University of Technology "STANKIN", Vadkovsky per. 1, Moscow 127055, Russia
- Scientific Department, A.I. Evdokimov Moscow State University of Medicine and Dentistry, Delegatskaya St., 20, p. 1, Moscow 127473, Russia
| | - Sergey Grigoriev
- Spark Plasma Sintering Research Laboratory, Moscow State University of Technology "STANKIN", Vadkovsky per. 1, Moscow 127055, Russia
| | - Luis Alou
- Microbiology Department, School of Medicine, Universidad Complutense, Avda. Complutense s/n, 28040 Madrid, Spain
| | - David Sevillano
- Microbiology Department, School of Medicine, Universidad Complutense, Avda. Complutense s/n, 28040 Madrid, Spain
| | - Roberto López-Piriz
- Instituto de Cirugía Oral Avanzada-ICOA, Calle de Fray Luis de León, 14, 28012 Madrid, Spain
| | - Francisco Guitian
- Instituto de Materiales, iMATUS-USC, Santiago de Compostela, Avenida do Mestre Mateo 25, 15782 La Coruña, Spain
| | - José Florindo Bartolomé
- Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), Campus de Cantoblanco, Calle Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
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Młynarek-Żak K, Żmudzki J. The effect of porous compliance bushings in a dental implant on the distribution of occlusal loads. Sci Rep 2024; 14:1607. [PMID: 38238380 PMCID: PMC10796672 DOI: 10.1038/s41598-024-51429-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 04/02/2023] [Indexed: 01/22/2024] Open
Abstract
Porous dental implants are clinically used, but the mechanism of load distribution for stepped implant shaft surrounded by compliance bushings is still not known, especially for different bone conditions. The aim of the study was to assess the impact of the design of a dental implant with compliance bushings (CBs) on the occlusal load distribution during primary and secondary stability using finite element simulation (FEA), with a distinction between low and high quality cervical support under primary stability. The FEA of the oblique occlusal load transfer (250 N; 45°) was carried out for implants under variable bone conditions. The stepped shaft in the intermediate part of the dental implant was surrounded by CBs with an increasing modulus of elasticity of 2, 10 and 50 GPa. With a smaller Young's modulus of the bushings the increase of stress in the trabecular bone indicated that more bone tissue can be protected against disuse. The beneficial effect for the trabecular bone derived from the reduction of the stiffness of the bushings in relation to the loss of the implant's load bearing ability can be assessed using the FEM method.
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Affiliation(s)
- Katarzyna Młynarek-Żak
- Department of Engineering Processes Automation and Integrated Manufacturing Systems, Silesian University of Technology, Konarskiego 18a St., 44-100, Gliwice, Poland
| | - Jarosław Żmudzki
- Department of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18a St., 44-100, Gliwice, Poland.
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Zhang Y, Du S, Aiyiti W, Teng Y, Jia R, Jiang H. Customized design and biomechanical property analysis of 3D-printed tantalum intervertebral cages. Biomed Mater Eng 2024; 35:99-124. [PMID: 38217572 DOI: 10.3233/bme-230154] [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: 01/15/2024]
Abstract
BACKGROUND Intervertebral cages used in clinical applications were often general products with standard specifications, which were challenging to match with the cervical vertebra and prone to cause stress shielding and subsidence. OBJECTIVE To design and fabricate customized tantalum (Ta) intervertebral fusion cages that meets the biomechanical requirements of the cervical segment. METHODS The lattice intervertebral cages were customized designed and fabricated by the selective laser melting. The joint and muscle forces of the cervical segment under different movements were analyzed using reverse dynamics method. The stress characteristics of cage, plate, screws and vertebral endplate were analyzed by finite element analysis. The fluid flow behaviors and permeability of three lattice structures were simulated by computational fluid dynamics. Compression tests were executed to investigate the biomechanical properties of the cages. RESULTS Compared with the solid cages, the lattice-filled structures significantly reduced the stress of cages and anterior fixation system. In comparison to the octahedroid and quaddiametral lattice-filled cages, the bitriangle lattice-filled cage had a lower stress shielding rate, higher permeability, and superior subsidence resistance ability. CONCLUSION The inverse dynamics simulation combined with finite element analysis is an effective method to investigate the biomechanical properties of the cervical vertebra during movements.
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Affiliation(s)
- Yutao Zhang
- School of Mechanical Engineering, Xinjiang University, Urumqi, China
| | - Shu Du
- School of Mechanical Engineering, Xinjiang University, Urumqi, China
| | - Wurikaixi Aiyiti
- School of Mechanical Engineering, Xinjiang University, Urumqi, China
| | - Yong Teng
- Department of Orthopaedics, Hospital of Xinjiang Military Region PLA, Urumqi, China
| | - Ru Jia
- School of Mechanical Engineering, Xinjiang University, Urumqi, China
| | - Houfeng Jiang
- School of Mechanical Engineering, Xinjiang University, Urumqi, China
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Noble DM, Sumpter A, Small B, Ruland JR, Cooper MT, Park JS, Perumal V. Clinical, Radiographic, and Patient-Reported Outcomes of First Metatarsophalangeal Interposition Arthrodesis Using Porous Titanium Wedges. Foot Ankle Spec 2023:19386400231218337. [PMID: 38130108 DOI: 10.1177/19386400231218337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
BACKGROUND First metatarsophalangeal (MTP) arthrodesis is a common surgical procedure for addressing hallux MTP pathology. In the setting of revision procedures with significant bone loss, porous titanium wedges may provide an alternative to structural bone autograft or allograft. OBJECTIVE The purpose of this study is to report the clinical and radiographic outcomes achieved in first MTP interposition arthrodesis using porous titanium wedges. METHODS A retrospective analysis of 9 patients with a mean age 65.4 years (45-82 years) who underwent first MTP interposition arthrodesis with the use of porous titanium wedges from February 2014 to September 2017 was performed. Outcomes were assessed using both plain-film radiographs and computed tomography (CT) scans, as well as patient-reported outcome measures, including Foot and Ankle Ability Measure (FAAM) (Sports and Activities of Daily Living), pain Visual Analogue Scale (VAS), and 36-Item Short Form Survey (SF-36). Average follow-up time was 34.2 months (14-72 months). RESULTS At final follow-up, the average FAAM score was 91.1 ± 14.7 (75.1 ± 5.3 FAAM Activities of Daily Living; 17.9 ± 9.9 FAAM Sports). Average pain VAS score was 1.9 ± 1.7. Postoperative computed tomography (CT) imaging was obtained for 5 patients, all of which demonstrated good bony apposition or osseous integration of the wedge. Four patients underwent subsequent surgical procedures, including 3 isolated dorsal fixation revisions, and 1 complete MTP arthrodesis revision. CONCLUSION To our knowledge, this study represents the first reported clinical and radiographic outcomes in patients undergoing first MTP interposition arthrodesis with use of porous titanium wedges. While we found this technique to be a viable alternative to bone grafting for this difficult problem, further research should focus on comparative data with other commonly performed operative techniques. LEVEL OF EVIDENCE Level IV: Case series.
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Affiliation(s)
- David M Noble
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia
| | - Anna Sumpter
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia
| | - Benjamin Small
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia
| | - Jeffrey R Ruland
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia
| | - M Truitt Cooper
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia
| | - Joseph S Park
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia
| | - Venkat Perumal
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia
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Wang X, Zhou K, Li Y, Xie H, Wang B. Preparation, modification, and clinical application of porous tantalum scaffolds. Front Bioeng Biotechnol 2023; 11:1127939. [PMID: 37082213 PMCID: PMC10110962 DOI: 10.3389/fbioe.2023.1127939] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/22/2023] [Indexed: 04/07/2023] Open
Abstract
Porous tantalum (Ta) implants have been developed and clinically applied as high-quality implant biomaterials in the orthopedics field because of their excellent corrosion resistance, biocompatibility, osteointegration, and bone conductivity. Porous Ta allows fine bone ingrowth and new bone formation through the inner space because of its high porosity and interconnected pore structure. It contributes to rapid bone integration and long-term stability of osseointegrated implants. Porous Ta has excellent wetting properties and high surface energy, which facilitate the adhesion, proliferation, and mineralization of osteoblasts. Moreover, porous Ta is superior to classical metallic materials in avoiding the stress shielding effect, minimizing the loss of marginal bone, and improving primary stability because of its low elastic modulus and high friction coefficient. Accordingly, the excellent biological and mechanical properties of porous Ta are primarily responsible for its rising clinical translation trend. Over the past 2 decades, advanced fabrication strategies such as emerging manufacturing technologies, surface modification techniques, and patient-oriented designs have remarkably influenced the microstructural characteristic, bioactive performance, and clinical indications of porous Ta scaffolds. The present review offers an overview of the fabrication methods, modification techniques, and orthopedic applications of porous Ta implants.
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Affiliation(s)
| | | | | | - Hui Xie
- *Correspondence: Hui Xie, ; Benjie Wang,
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Dvorakova J, Wiesnerova L, Chocholata P, Kulda V, Landsmann L, Cedikova M, Kripnerova M, Eberlova L, Babuska V. Human cells with osteogenic potential in bone tissue research. Biomed Eng Online 2023; 22:33. [PMID: 37013601 PMCID: PMC10069154 DOI: 10.1186/s12938-023-01096-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 03/24/2023] [Indexed: 04/05/2023] Open
Abstract
Bone regeneration after injury or after surgical bone removal due to disease is a serious medical challenge. A variety of materials are being tested to replace a missing bone or tooth. Regeneration requires cells capable of proliferation and differentiation in bone tissue. Although there are many possible human cell types available for use as a model for each phase of this process, no cell type is ideal for each phase. Osteosarcoma cells are preferred for initial adhesion assays due to their easy cultivation and fast proliferation, but they are not suitable for subsequent differentiation testing due to their cancer origin and genetic differences from normal bone tissue. Mesenchymal stem cells are more suitable for biocompatibility testing, because they mimic natural conditions in healthy bone, but they proliferate more slowly, soon undergo senescence, and some subpopulations may exhibit weak osteodifferentiation. Primary human osteoblasts provide relevant results in evaluating the effect of biomaterials on cellular activity; however, their resources are limited for the same reasons, like for mesenchymal stem cells. This review article provides an overview of cell models for biocompatibility testing of materials used in bone tissue research.
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Affiliation(s)
- Jana Dvorakova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Plzen, Czech Republic
| | - Lucie Wiesnerova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Plzen, Czech Republic
| | - Petra Chocholata
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Plzen, Czech Republic
| | - Vlastimil Kulda
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Plzen, Czech Republic
| | - Lukas Landsmann
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Plzen, Czech Republic
| | - Miroslava Cedikova
- Biomedical Center, Laboratory of Tumor Biology and Immunotherapy, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Plzen, Czech Republic
| | - Michaela Kripnerova
- Department of Biology, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Plzen, Czech Republic
| | - Lada Eberlova
- Department of Anatomy, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Plzen, Czech Republic
| | - Vaclav Babuska
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00, Plzen, Czech Republic.
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8
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Li G, Xu Z, Yang M, Ning Y, Ye L, Jiang H, Du Y. Topographic Cues of a PLGA Scaffold Promote Odontogenic Differentiation of Dental Pulp Stem Cells through the YAP/β-Catenin Signaling Axis. ACS Biomater Sci Eng 2023; 9:1598-1607. [PMID: 36861954 DOI: 10.1021/acsbiomaterials.2c01497] [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: 03/03/2023]
Abstract
PURPOSE The underlying mechanism of how topographic cues of artificial scaffolds regulate cell function remains poorly understood. Yes-associated protein (YAP) and β-catenin signaling have both been reported to play important roles in mechano-transduction and dental pulp stem cells (DPSCs) differentiation. We investigated the effects of YAP and β-catenin in spontaneous odontogenic differentiation of DPSCs induced by topographic cues of a poly(lactic-co-glycolic acid) (PLGA) membrane. METHODS The topographic cues and function of a fabricated PLGA scaffold were explored via scanning electron microscopy (SEM), alizarin red staining (ARS), reverse transcription-polymerase chain reaction (RT-PCR), and pulp capping. Immunohistochemistry (IF), RT-PCR, and western blotting (WB) were used to observe the activation of YAP and β-catenin when DPSCs were cultured on the scaffolds. Further, YAP was inhibited or overexpressed on either side of the PLGA membrane, and YAP, β-catenin, and odontogenic marker expression were analyzed using IF, ARS, and WB. RESULTS The closed side of the PLGA scaffold promoted spontaneous odontogenic differentiation and nuclear translocation of YAP and β-catenin in vitro and in vivo compared to the open side. The YAP antagonist verteporfin inhibited β-catenin expression, nuclear translocation, and odontogenic differentiation on the closed side, but the effects were rescued by LiCl. YAP overexpressing DPSCs on the open side activated β-catenin signaling and promoted odontogenic differentiation. CONCLUSION The topographic cue of our PLGA scaffold promotes odontogenic differentiation of DPSCs and pulp tissue through the YAP/β-catenin signaling axis.
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Affiliation(s)
- Guixian Li
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling Yuan Xi Road, Guangzhou 510055, Guangdong, China
| | - Zhiqing Xu
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling Yuan Xi Road, Guangzhou 510055, Guangdong, China
| | - Maobin Yang
- Regenerative Health Research Laboratory, Department of Endodontology, Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania 19140, United States
| | - Yang Ning
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling Yuan Xi Road, Guangzhou 510055, Guangdong, China
| | - Li Ye
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling Yuan Xi Road, Guangzhou 510055, Guangdong, China
| | - Hongwei Jiang
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling Yuan Xi Road, Guangzhou 510055, Guangdong, China
| | - Yu Du
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling Yuan Xi Road, Guangzhou 510055, Guangdong, China
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Zou L, Zhong Y, Li X, Yang X, He D. 3D-Printed Porous Tantalum Scaffold Improves Muscle Attachment via Integrin-β1-Activated AKT/MAPK Signaling Pathway. ACS Biomater Sci Eng 2023; 9:889-899. [PMID: 36701762 DOI: 10.1021/acsbiomaterials.2c01155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
3D-printed porous titanium (Ti) alloy scaffolds have been reported for facilitating muscle attachment in our previous study. However, the anti-avulsion ability needs to be improved. In this study, we used 3D-printed porous tantalum (Ta) scaffolds to improve muscle attachment. The differences in chemical and physical characteristics and muscle adhesion between the two scaffolds were tested and compared in the gene and protein level both in vitro and in vivo. The possible molecular mechanism was analyzed and further proved. The results showed that compared with the porous Ti alloy, porous Ta had better cell proliferation, differentiation, migration, and adhesion via the integrin-β1 (Itgb1)-activated AKT/MAPK signaling pathway in L6 rat myoblasts. When artificially down-regulated the expression of Itgb1, cell adhesion and myogenesis differentiation were affected and the phosphorylation of the AKT/MAPK signaling pathway was suppressed. In rat intramuscular implantation, porous Ta had a significantly higher muscle ingrowth rate (85.63% ± 4.97 vs 65.98% ± 4.52, p < 0.01) and larger avulsion force (0.972 vs 0.823 N/mm2, p < 0.05) than the porous Ti alloy. These findings demonstrate that the 3D-printed porous Ta scaffold is beneficial for further clinical application of muscle attachment.
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Affiliation(s)
- Luxiang Zou
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China.,National Clinical Research Center of Stomatology, Shanghai 200011, China
| | - Yingqian Zhong
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China.,National Clinical Research Center of Stomatology, Shanghai 200011, China
| | - Xiang Li
- State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiujuan Yang
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China.,National Clinical Research Center of Stomatology, Shanghai 200011, China
| | - Dongmei He
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China.,National Clinical Research Center of Stomatology, Shanghai 200011, China
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10
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Tantalum as Trabecular Metal for Endosseous Implantable Applications. Biomimetics (Basel) 2023; 8:biomimetics8010049. [PMID: 36810380 PMCID: PMC9944482 DOI: 10.3390/biomimetics8010049] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/26/2023] Open
Abstract
During the last 20 years, tantalum has known ever wider applications for the production of endosseous implantable devices in the orthopedic and dental fields. Its excellent performances are due to its capacity to stimulate new bone formation, thus improving implant integration and stable fixation. Tantalum's mechanical features can be mainly adjusted by controlling its porosity thanks to a number of versatile fabrication techniques, which allow obtaining an elastic modulus similar to that of bone tissue, thus limiting the stress-shielding effect. The present paper aims at reviewing the characteristics of tantalum as a solid and porous (trabecular) metal, with specific regard to biocompatibility and bioactivity. Principal fabrication methods and major applications are described. Moreover, the osteogenic features of porous tantalum are presented to testify its regenerative potential. It can be concluded that tantalum, especially as a porous metal, clearly possesses many advantageous characteristics for endosseous applications but it presently lacks the consolidated clinical experience of other metals such as titanium.
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Li G, Yang L, Wu G, Qian Z, Li H. An update of interbody cages for spine fusion surgeries: from shape design to materials. Expert Rev Med Devices 2022; 19:977-989. [PMID: 36617696 DOI: 10.1080/17434440.2022.2165912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
INTRODUCTION Discectomy and interbody fusion are widely used in the treatment of intervertebral disc-related diseases. Among them, the interbody cage plays a significant role. However, the complications related to the interbody cage, such as nonunion or pseudoarthrosis, subsidence, loosening, and prolapse of the cage, cannot be ignored. By changing the design and material of the interbody fusion cage, a better fusion effect can be obtained, the incidence of appeal complications can be reduced, and the quality of life of patients after interbody fusion can be improved. AREAS COVERED This study reviewed the research progress of cage design and material and discussed the methods of cage design and material to promote intervertebral fusion. EXPERT OPINION Current treatment of cervical and lumbar degenerative disease requires interbody fusion to maintain decompression and to promote fusion and reduce the incidence of fusion failure through improvements in implant material, design, internal structure, and function. However, interbody fusion is not an optimal solution for treating vertebral instability.Abbreviations: ACDF, Anterior cervical discectomy and fusion; ALIF, anterior lumbar interbody fusion; Axi-aLIF, axial lumbar interbody fusion; BAK fusion cage, Bagby and Kuslich fusion cage; CADR, cervical artificial disc replacement; DBM, decalcified bone matrix; HA, hydroxyapatite; LLIF/XLIF, lateral or extreme lateral interbody fusion; MIS-TLIF, minimally invasive transforaminal lumbar interbody fusion; OLIF/ATP, oblique lumbar interbody fusion/anterior to psoas; PEEK, Poly-ether-ether-ketone; PLIF, posterior lumbar interbody fusion; ROI-C, Zero-profile Anchored Spacer; ROM, range of motion; SLM, selective melting forming; TLIF, transforaminal lumbar interbody fusion or.
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Affiliation(s)
- Guangshen Li
- Nantong University Medical School, 226000, Nantong, Jiangsu, China.,Department of Orthopedics, Hospital Affiliated 5 to Nantong University, Taizhou People's Hospital, 225300, Taizhou, China.,Department of Orthopedics, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, China
| | - Lei Yang
- Department of Orthopedics, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, China
| | - Gang Wu
- Department of Orthopedics, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, China
| | - Zhanyang Qian
- School of Medicine, Southeast University, Nanjing, China; Spine Center, Zhongda Hospital of Southeast University, Nanjing, China
| | - Haijun Li
- Nantong University Medical School, 226000, Nantong, Jiangsu, China.,Department of Orthopedics, Hospital Affiliated 5 to Nantong University, Taizhou People's Hospital, 225300, Taizhou, China.,Department of Orthopedics, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, China.,Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, Jiangsu, China
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Zhang Y, Fan Z, Xing Y, Jia S, Mo Z, Gong H. Effect of microtopography on osseointegration of implantable biomaterials and its modification strategies. Front Bioeng Biotechnol 2022; 10:981062. [PMID: 36225600 PMCID: PMC9548570 DOI: 10.3389/fbioe.2022.981062] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
Orthopedic implants are widely used for the treatment of bone defects caused by injury, infection, tumor and congenital diseases. However, poor osseointegration and implant failures still occur frequently due to the lack of direct contact between the implant and the bone. In order to improve the biointegration of implants with the host bone, surface modification is of particular interest and requirement in the development of implant materials. Implant surfaces that mimic the inherent surface roughness and hydrophilicity of native bone have been shown to provide osteogenic cells with topographic cues to promote tissue regeneration and new bone formation. A growing number of studies have shown that cell attachment, proliferation and differentiation are sensitive to these implant surface microtopography. This review is to provide a summary of the latest science of surface modified bone implants, focusing on how surface microtopography modulates osteoblast differentiation in vitro and osseointegration in vivo, signaling pathways in the process and types of surface modifications. The aim is to systematically provide comprehensive reference information for better fabrication of orthopedic implants.
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Affiliation(s)
- Yingying Zhang
- Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability and Key Laboratory of Human Motion Analysis and Rehabilitation Technology of the Ministry of Civil Affairs, National Research Center for Rehabilitation Technical Aids, Beijing, China
| | - Zhenmin Fan
- School of Mechanical Engineering, Jiangsu University of Technology, Changzhou, China
| | - Yanghui Xing
- Department of Biomedical Engineering, Shantou University, Shantou, China
| | - Shaowei Jia
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Zhongjun Mo
- Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability and Key Laboratory of Human Motion Analysis and Rehabilitation Technology of the Ministry of Civil Affairs, National Research Center for Rehabilitation Technical Aids, Beijing, China
- *Correspondence: Zhongjun Mo, ; He Gong,
| | - He Gong
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- *Correspondence: Zhongjun Mo, ; He Gong,
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13
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Contemporary Concepts in Osseointegration of Dental Implants: A Review. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6170452. [PMID: 35747499 PMCID: PMC9213185 DOI: 10.1155/2022/6170452] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/26/2022] [Indexed: 11/18/2022]
Abstract
In a society highly conscious of esthetics, prosthetic rehabilitation of lost teeth with tissue-integrated implants has gained wide acceptance and demand by patients and clinicians. The backbone of these tissue-integrated implants is the biotechnical process of osseointegration. Although the concept has been introduced and discussed for ages, the deepening knowledge about its cellular and molecular mechanisms has led the researchers to borrow further into the factors influencing the process of osseointegration. This has aided in the hastening and improving the process of osseointegration by exploiting several, even the minutest, details and events taking place in this natural process. Recently, due to the high esthetic expectations of the patients, the implants are being loaded immediately, which demands a high degree of implant stability. Implant stability, especially secondary stability, largely depends on bone formation and integration of implants to the osseous tissues. Various factors that influence the rate and success of osseointegration can either be categorized as those related to implant characteristics like the physical and chemical macro- and microdesign of implants or the bone characteristics like the amount and quality of bone and the local and systemic host conditions, or the time or protocol followed for the functional loading of the dental implant. To address the shortcomings in osseointegration due to any of the factors, it is mandatory that continuous and reliable monitoring of the status of osseointegration is done. This review attempts to encompass the mechanisms, factors affecting, and methods to assess osseointegration, followed by a discussion on the recent advances and future perspectives in dental implantology to enhance the process of osseointegration. The review was aimed at igniting the inquisitive minds to usher further the development of technology that enhances osseointegration.
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Ou P, Zhang T, Wang J, Li C, Shao C, Ruan J. Microstructure, mechanical properties and osseointegration ability of Ta-20Zr alloy used as dental implant material. Biomed Mater 2022; 17:045003. [PMID: 35477054 DOI: 10.1088/1748-605x/ac6b05] [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: 01/08/2022] [Accepted: 04/27/2022] [Indexed: 11/12/2022]
Abstract
The aim of this study was to evaluate the application prospect of a tantalum (Ta) and zirconium (Zr) alloy as a dental implant material. The Ta-20Zr (wt.%) alloy was prepared by powder metallurgy, and its microstructure and mechanical properties were analyzed by standard techniques. The effect of Ta-20Zr alloy on inflammation, bone remodeling and osseointegration was analyzed in rat and rabbit models by biochemical, histological and imaging tests. The Ta-20Zr alloy showed excellent mechanical compatibility with the bone tissue on account of similar elastic modulus (49.2 GPa), thereby avoiding the 'stress shielding effect'. Furthermore, Ta-20Zr alloy enhanced the inflammatory response by promoting secretion of interleukin-6 (IL-6) and IL-10, and facilitated the balance between the M1/M2 macrophage phenotypes. Finally, Ta-20Zr also showed excellent osseointegration and osteogenic ability without any systemic side effects, making it an ideal dental implant material.
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Affiliation(s)
- Pinghua Ou
- Department of Stomatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, 410083, People's Republic of China
| | - Taomei Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, 410083, People's Republic of China
| | - Jianying Wang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, 410083, People's Republic of China
| | - Cui Li
- Department of Stomatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Chunsheng Shao
- Department of Stomatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Jianming Ruan
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, 410083, People's Republic of China
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15
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Chen W, Yang J, Kong H, Helou M, Zhang D, Zhao J, Jia W, Liu Q, He P, Li X. Fatigue behaviour and biocompatibility of additively manufactured bioactive tantalum graded lattice structures for load-bearing orthopaedic applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 130:112461. [PMID: 34702536 DOI: 10.1016/j.msec.2021.112461] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 01/16/2023]
Abstract
Laser powder bed fusion (LPBF) additive manufacturing of pure tantalum and their graded lattice structures was systematically investigated, with emphasis on their microstructure evolution, phase formation, surface energy and biological properties in comparison with conventionally forged pure Ta. The LPBF fabricated Ta (LPBF-Ta) exhibited lower contact angles and higher surface energy than the forged-Ta which indicated the better wettability of the LPBF-Ta. The adhesion and proliferation of rat bone marrow stromal cells (rBMSCs) were also enhanced for the LPBF-Ta when compared to forged-Ta. Three different Ta graded gyroid lattice structures (i.e., uniform structure, Y-gradient structure, Z-gradient structure) were designed and fabricated using the same optimised LPBF parameters. Y-gradient structures exhibited the best plateau stress and compressive modulus among three different graded structures due to the maximum local volume fraction on the fracture plane. In fatigue response, Y-gradient outperformed the other two gyroid structures under varying stresses. In terms of cell culture response, the uniform structures performed the best biocompatibility due to its suitable pore size for cell adhesion and growth. This study provides new and in-depth insights into the LPBF additive manufacturing of pure Ta graded lattice structures with desired fatigue and biological properties for load-bearing orthopaedic applications.
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Affiliation(s)
- Wenliang Chen
- School of Mechanical and Manufacturing Engineering, The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Jingzhou Yang
- School of Mechanical & Automobile Engineering, Qingdao University of Technology, Qingdao, Shandong, PR China; Shenzhen Dazhou Medical Technology Co., Ltd., Shenzhen, Guangdong, PR China; Center of Biomedical Materials 3D Printing, National Engineering Laboratory for Polymer Complex Structure Additive Manufacturing, Baoding, Hebei, PR China.
| | - Hui Kong
- School of Materials Science and Engineering, The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Mark Helou
- School of Mechanical and Manufacturing Engineering, The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia; NEPEAN Engineering & Innovation, Sydney, NSW 2567, Australia
| | - Dachen Zhang
- Shenzhen Dazhou Medical Technology Co., Ltd., Shenzhen, Guangdong, PR China; Center of Biomedical Materials 3D Printing, National Engineering Laboratory for Polymer Complex Structure Additive Manufacturing, Baoding, Hebei, PR China
| | - Jinhui Zhao
- Department of Orthopedic Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, PR China
| | - Weitao Jia
- Department of Orthopedic Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, PR China
| | - Qian Liu
- School of Mechanical and Manufacturing Engineering, The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Peidong He
- School of Mechanical and Manufacturing Engineering, The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Xiaopeng Li
- School of Mechanical and Manufacturing Engineering, The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia.
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Wang X, Ning B, Pei X. Tantalum and its derivatives in orthopedic and dental implants: Osteogenesis and antibacterial properties. Colloids Surf B Biointerfaces 2021; 208:112055. [PMID: 34438295 DOI: 10.1016/j.colsurfb.2021.112055] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 07/11/2021] [Accepted: 08/16/2021] [Indexed: 02/08/2023]
Abstract
Implant-associated infections and aseptic loosening are some of the main reasons for implant failure. Therefore, there is an urgent need to improve the osseointegration and antibacterial capabilities of implant materials. In recent years, a large number of breakthroughs in the biological application of tantalum and its derivatives have been achieved. Owing to their corrosion resistance, biocompatibility, osseointegration ability, and antibacterial properties, they have shown considerable potential in orthopedic and dental implant applications. In this review, we provide the latest progress and achievements in the research on osseointegration and antibacterial properties of tantalum as well as its derivatives, and summarize the surface modification methods to enhance their osseointegration and antibacterial properties.
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Affiliation(s)
- Xu Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Boyu Ning
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xibo Pei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China.
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17
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Lei P, Qian H, Zhang T, Lei T, Hu Y, Chen C, Zhou K. Porous tantalum structure integrated on Ti6Al4V base by Laser Powder Bed Fusion for enhanced bony-ingrowth implants: In vitro and in vivo validation. Bioact Mater 2021; 7:3-13. [PMID: 34430760 PMCID: PMC8367833 DOI: 10.1016/j.bioactmat.2021.05.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/11/2021] [Accepted: 05/14/2021] [Indexed: 02/07/2023] Open
Abstract
Despite the widespread application of Ti6Al4V and tantalum (Ta) in orthopedics, bioinertia and high cost limit their further applicability, respectively, and tremendous efforts have been made on the Ti6Al4V-Ta alloy and Ta coating to address these drawbacks. However, the scaffolds obtained are unsatisfactory. In this study, novel high-interface-strength Ti6Al4V-based porous Ta scaffolds were successfully manufactured using Laser Powder Bed Fusion for the first time, in which porous Ta was directly manufactured on a solid Ti6Al4V substrate. Mechanical testing revealed that the novel scaffolds were biomechanically compatible, and the interfacial bonding strength was as high as 447.5 MPa. In vitro biocompatibility assay, using rat bone marrow mesenchymal stem cells (r-BMSCs), indicated that the novel scaffolds were biocompatible. Alkaline phosphatase and mineralized nodule determination demonstrated that the scaffolds favored the osteogenic differentiation of r-BMSCs. Moreover, scaffolds were implanted into rabbits with femur bone defects, and imaging and histological evaluation identified considerable new bone formation and bone ingrowth, suggesting that the scaffolds were well integrated with the host bone. Overall, these results demonstrated good mechanical compatibility, biocompatibility, and osteointegration performance of the novel Ti6Al4V-based porous Ta scaffold, which possesses great potential for orthopedic clinical applications.
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Affiliation(s)
- Pengfei Lei
- Department of Orthopedic Surgery, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha 410008, China.,Department of Orthopedic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, China.,State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Hu Qian
- Department of Orthopedic Surgery, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Taomei Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Ting Lei
- Department of Orthopedic Surgery, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yihe Hu
- Department of Orthopedic Surgery, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha 410008, China.,Department of Orthopedic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, China
| | - Chao Chen
- Department of Orthopedic Surgery, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha 410008, China.,State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Kechao Zhou
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
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18
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Huang G, Pan ST, Qiu JX. The Clinical Application of Porous Tantalum and Its New Development for Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2021; 14:2647. [PMID: 34070153 PMCID: PMC8158527 DOI: 10.3390/ma14102647] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/06/2021] [Accepted: 05/13/2021] [Indexed: 12/13/2022]
Abstract
Porous tantalum (Ta) is a promising biomaterial and has been applied in orthopedics and dentistry for nearly two decades. The high porosity and interconnected pore structure of porous Ta promise fine bone ingrowth and new bone formation within the inner space, which further guarantee rapid osteointegration and bone-implant stability in the long term. Porous Ta has high wettability and surface energy that can facilitate adherence, proliferation and mineralization of osteoblasts. Meanwhile, the low elastic modulus and high friction coefficient of porous Ta allow it to effectively avoid the stress shield effect, minimize marginal bone loss and ensure primary stability. Accordingly, the satisfactory clinical application of porous Ta-based implants or prostheses is mainly derived from its excellent biological and mechanical properties. With the advent of additive manufacturing, personalized porous Ta-based implants or prostheses have shown their clinical value in the treatment of individual patients who need specially designed implants or prosthesis. In addition, many modification methods have been introduced to enhance the bioactivity and antibacterial property of porous Ta with promising in vitro and in vivo research results. In any case, choosing suitable patients is of great importance to guarantee surgical success after porous Ta insertion.
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Affiliation(s)
| | | | - Jia-Xuan Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; (G.H.); (S.-T.P.)
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19
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Tantalum Particles Induced Cytotoxic and Inflammatory Effects in Human Monocytes. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6658498. [PMID: 33564679 PMCID: PMC7867444 DOI: 10.1155/2021/6658498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/26/2020] [Accepted: 01/09/2021] [Indexed: 12/30/2022]
Abstract
The aim of this study is to evaluate the biological safety of tantalum (Ta) particles and to further explore the effects of Ta particles on human monocyte toxicity and inflammatory cytokine expression. Human monocyte leukemia (THP-1) cells were cultured with Ta and hydroxyapatite (HA) particles. Cell counting kit-8 method was used to evaluate the cytotoxicity of Ta and HA particles. The apoptosis effects were evaluated by flow cytometry, and the protein expression levels of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were evaluated by ELISA. The protein levels of inflammation-related signaling pathways including nuclear factor-kappa B (NF-κB) and extracellular regulated kinase (ERK) were detected by western blotting. The cytotoxicity test showed that the toxicity level of Ta in vitro was grade l, which is within the clinically acceptable range. Compared with the HA control, Ta had no significant effect on THP-1 cell apoptosis, IL-6, and TNF-α release. The phosphorylated levels of NF-κB and ERK at 3 h in the Ta group were lower than those in the HA and control groups (P < 0.001 both). These results reveal Ta particles behave good biosafety properties and provide some new insights for the future clinical use of Ta.
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