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Hossain M, Jeong JH, Sultana T, Kim JH, Moon JE, Im S. A composite of polymethylmethacrylate, hydroxyapatite, and β-tricalcium phosphate for bone regeneration in an osteoporotic rat model. J Biomed Mater Res B Appl Biomater 2023; 111:1813-1823. [PMID: 37289178 DOI: 10.1002/jbm.b.35287] [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: 07/22/2022] [Revised: 03/13/2023] [Accepted: 05/18/2023] [Indexed: 06/09/2023]
Abstract
The purpose of this study was to test several modifications of the polymethylmethacrylate (PMMA) bone cement by incorporating osteoconductive and biodegradable materials for enhancing bone regeneration capacity in an osteoporotic rat model. Three bio-composites (PHT-1 [80% PMMA, 16% HA, 4% β-TCP], PHT-2 [70% PMMA, 24% HA, 6% β-TCP], and PHT-3 [30% PMMA, 56% HA, 14% β-TCP]) were prepared using different concentrations of PMMA, hydroxyapatite (HA), and β-tricalcium phosphate (β-TCP). Their morphological structure was then examined using a scanning electron microscope (SEM) and mechanical properties were determined using a MTS 858 Bionics test machine (MTS, Minneapolis, MN, USA). For in vivo studies, 35 female Wister rats (250 g, 12 weeks of age) were prepared and divided into five groups including a sham group (control), an ovariectomy-induced osteoporosis group (OVX), an OVX with pure PMMA group (PMMA), an OVX with PHT-2 group (PHT-2), and an OVX with PHT-3 group (PHT-3). In vivo bone regeneration efficacy was assessed using micro-CT and histological analysis after injecting the prepared bone cement into the tibial defects of osteoporotic rats. SEM investigation showed that the PHT-3 sample had the highest porosity and roughness among all samples. In comparison to other samples, the PHT-3 exhibited favorable mechanical properties for use in vertebroplasty procedures. Micro-CT and histological analysis of OVX-induced osteoporotic rats revealed that PHT-3 was more effective in regenerating bone and restoring bone density than other samples. This study suggests that the PHT-3 bio-composite can be a promising candidate for treating osteoporosis-related vertebral fractures.
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Affiliation(s)
- Mosharraf Hossain
- Department of Neurosurgery, College of Medicine, Soonchunhyang University, Bucheon Hospital, Bucheon, South Korea
| | - Je Hoon Jeong
- Department of Neurosurgery, College of Medicine, Soonchunhyang University, Bucheon Hospital, Bucheon, South Korea
| | - Tamima Sultana
- Department of Neurosurgery, College of Medicine, Soonchunhyang University, Bucheon Hospital, Bucheon, South Korea
| | - Ju Hyung Kim
- Department of Neurosurgery, College of Medicine, Soonchunhyang University, Bucheon Hospital, Bucheon, South Korea
| | - Ji Eun Moon
- Department of Biostatistics, Clinical Trial Center, Soonchunhyang University, Bucheon Hospital, Bucheon, South Korea
| | - Soobin Im
- Department of Neurosurgery, College of Medicine, Soonchunhyang University, Bucheon Hospital, Bucheon, South Korea
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Speed and quality of interbody fusion in porous bioceramic Al 2O 3 and polyetheretherketone cages for anterior cervical discectomy and fusion: a comparative study. J Orthop Surg Res 2023; 18:165. [PMID: 36869376 PMCID: PMC9983253 DOI: 10.1186/s13018-023-03625-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 02/17/2023] [Indexed: 03/05/2023] Open
Abstract
BACKGROUND The objective of this prospective randomized monocentric study is to compare the speed and quality of interbody fusion of implanted porous Al2O3 (aluminium oxide) cages with PEEK (polyetheretherketone) cages in ACDF (anterior cervical discectomy and fusion). MATERIALS AND METHODS A total of 111 patients were enrolled in the study, which was carried out between 2015 and 2021. The 18-month follow-up (FU) was completed in 68 patients with an Al2O3 cage and 35 patients with a PEEK cage in one-level ACDF. Initially, the first evidence (initialization) of fusion was evaluated on computed tomography. Subsequently, interbody fusion was evaluated according to the fusion quality scale, fusion rate and incidence of subsidence. RESULTS Signs of incipient fusion at 3 months were detected in 22% of cases with the Al2O3 cage and 37.1% with the PEEK cage. At 12-month FU, the fusion rate was 88.2% for Al2O3 and 97.1% for PEEK cages, and at the final FU at 18 months, 92.6% and 100%, respectively. The incidence of subsidence was observed to be 11.8% and 22.9% of cases with Al2O3 and PEEK cages, respectively. CONCLUSIONS Porous Al2O3 cages demonstrated a lower speed and quality of fusion in comparison with PEEK cages. However, the fusion rate of Al2O3 cages was within the range of published results for various cages. The incidence of subsidence of Al2O3 cages was lower compared to published results. We consider the porous Al2O3 cage as safe for a stand-alone disc replacement in ACDF.
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Existing and Novel Biomaterials for Bone Tissue Engineering. Int J Mol Sci 2022; 24:ijms24010529. [PMID: 36613972 PMCID: PMC9820083 DOI: 10.3390/ijms24010529] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/23/2022] [Accepted: 12/23/2022] [Indexed: 12/31/2022] Open
Abstract
The treatment of bone defects remains one of the major challenges in modern clinical practice. Nowadays, with the increased incidence of bone disease in an aging population, the demand for materials to repair bone defects continues to grow. Recent advances in the development of biomaterials offer new possibilities for exploring modern bone tissue engineering strategies. Both natural and synthetic biomaterials have been used for tissue repair. A variety of porous structures that promote cell adhesion, differentiation, and proliferation enable better implant integration with increasingly better physical properties. The selection of a suitable biomaterial on which the patient's new tissue will grow is one of the key issues when designing a modern tissue scaffold and planning the entire treatment process. The purpose of this article is to present a comprehensive literature review of existing and novel biomaterials used in the surgical treatment of bone tissue defects. The materials described are divided into three groups-organic, inorganic, and synthetic polymers-taking into account current trends. This review highlights different types of existing and novel natural and synthetic materials used in bone tissue engineering and their advantages and disadvantages for bone defects regeneration.
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Chen Y, Caneli G, Xie D. A PMMA bone cement with improved antibacterial function and flexural strength. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1398-1414. [PMID: 35321628 DOI: 10.1080/09205063.2022.2056943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/16/2022] [Accepted: 03/20/2022] [Indexed: 06/14/2023]
Abstract
A novel non-leaching antibacterial bone cement has been developed and evaluated. An antibacterial furanone derivative was synthesized and covalently coated onto the surface of alumina filler particles, followed by mixing into a conventional poly(methyl methacrylate) bone cement. Flexural strength and bacterial viability were used to evaluate the modified cements. Effects of coated antibacterial moiety content, coated alumina filler particle size and loading were investigated. Results showed that almost all the modified cements showed higher flexural strength (up to 10%), flexural modulus (up to 18%), and antibacterial activity (up to 67% to S. aureus and up to 84% to E. coli), as compared to original poly(methyl methacrylate) cement. Increasing antibacterial moiety and filler loading significantly enhanced antibacterial activity. On the other hand, increasing coated filler particle size decreased antibacterial activity. Increasing antibacterial moiety content and particle size did not significantly affect flexural strength and modulus. Increasing filler loading did not significantly affect flexural modulus but reduced flexural strength. Antibacterial agent leaching tests showed that it seems no leachable antibacterial component from the modified experimental cement to the surrounding environment. Within the limitations of this study, the modified poly(methyl methacrylate) bone cement may potentially be developed into a clinically useful bone cement for reducing in-surgical and post-surgical infection.
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Affiliation(s)
- Yong Chen
- Department of Biomedical Engineering, Purdue School of Engineering and Technology, Indiana University-Purdue University at Indianapolis, Indianapolis, Indiana, USA
- Jinchu University, Hubei, P.R. China
| | - Gulsah Caneli
- Department of Biomedical Engineering, Purdue School of Engineering and Technology, Indiana University-Purdue University at Indianapolis, Indianapolis, Indiana, USA
| | - Dong Xie
- Department of Biomedical Engineering, Purdue School of Engineering and Technology, Indiana University-Purdue University at Indianapolis, Indianapolis, Indiana, USA
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Nurakhmetova Z, Tatykhanova G, Kudaibergenov S. Immobilized anticancer agents and metal nanoparticles in a matrix of gellan: achievements and prospects. CHEMICAL BULLETIN OF KAZAKH NATIONAL UNIVERSITY 2020. [DOI: 10.15328/cb1169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
A review is devoted to recent achievements in development of anticancer drugs based on natural polysaccharide – gellan that possesses coil-helix conformational transition, sol-gel phase transition, thermo- and salt sensitivity. The characteristics of high- and low-acyl gellan are briefly given and the influence of mono- and multivalent metal ions on the gelation efficiency is described. The mucoadhesive properties of gellan and its modified derivatives are briefly considered in the context of application in pharmacy as oral, buccal, nasal, ophthalmologic, vaginal forms. The main attention is paid to anticancer drugs, gold and silver nanoparticles immobilized within gellan matrix by chemical bonds, physical adsorption and chemosorption. The state-of-the art and perspectives of development of plasmonic photothermal therapy of cancer cells that is one of the promising direction of nanomedicine in diagnosis and treatment of oncological diseases are highlighted. It is outlined that the further strategy of development and application of plasmonic photothermal therapy into clinical practice is due to selection of metal nanoparticles with optimal sizes, high concentration, low cytotoxicity and suitable optical characteristics.
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Jia S, Liu Y, Ma Z, Liu C, Chai J, Li Z, Song W, Hu K. A novel vertical aligned mesoporous silica coated nanohydroxyapatite particle as efficient dexamethasone carrier for potential application in osteogenesis. Biomed Mater 2020; 16. [PMID: 33197902 DOI: 10.1088/1748-605x/abcae1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/16/2020] [Indexed: 12/12/2022]
Abstract
Bone defect is a common problem and inducing osteoblasts differentiation is the key process for the regenerative repair. Recently, the mesoporous silica (MS) coated nanohydroxyapatite particles nHA (nHA-MS) has shown enhanced intrinsic potency for bone regeneration, whereas whether the osteogenesis potency can be further enhanced after drug delivery has not been investigated. In this study, the nHA-MS was fabricated by a novel biphase stratification growth way. The cytotoxicity in MC3T3-E1 was validated by MTT assay, apoptosis analysis and cell cycle examination. The cell uptake was observed by confocal laser scanning microscope and transmission electron microscope respectively. After adsorption with dexamethasone (DEX), the osteogenic differentiation was determined both in vitro and in vivo. The synthesized nHA-MS showed a core-shell structure that the nanorod-like nHA was coated by a porous MS shell (~5 nm pores diameter, ~50 nm thickness). A dose-dependent cytotoxicity was observed and below 10 µg/ml was a safe concentration. The nHA-MS also showed efficient cell uptake efficiency and more efficient in DEX loading and release. After DEX adsorption, the nanoparticles exhibited enhanced osteogenic induction in MC3T3-E1 and rat calvarial bone defect regeneration. In conclusion, the nHA-MS is a favorable platform for drug delivery to obtain more enhanced osteogenesis capabilities.
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Affiliation(s)
- Sen Jia
- Fourth Military Medical University School of Stomatology, Xi'an, CHINA
| | - Yan Liu
- Fourth Military Medical University School of Stomatology, Xi'an, CHINA
| | - Zhiwei Ma
- Fourth Military Medical University School of Stomatology, Xi'an, CHINA
| | | | - Juan Chai
- Xi'an Medical University, Xi'an, Shaanxi, CHINA
| | - Zixia Li
- Xi'an Medical University, Xi'an, Shaanxi, CHINA
| | - Wen Song
- Fourth Military Medical University School of Stomatology, Xi'an, 710000, CHINA
| | - Kaijin Hu
- Fourth Military Medical University School of Stomatology, Xi'an, CHINA
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Keppler AM, Saller MM, Alberton P, Westphal I, Heidenau F, Schönitzer V, Böcker W, Kammerlander C, Schieker M, Aszodi A, Neuerburg C. Correction to: Bone defect reconstruction with a novel biomaterial containing calcium phosphate and aluminum oxide reinforcement. J Orthop Surg Res 2020; 15:394. [PMID: 32907607 PMCID: PMC7488024 DOI: 10.1186/s13018-020-01945-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Alexander M Keppler
- Department of General, Trauma and Reconstructive Surgery, University Hospital of the Ludwig-Maximilians-University Munich, Campus Großhadern, Marchioninistraße 15, 81377, Munich, Germany
| | - Maximilian M Saller
- Department of General, Trauma and Reconstructive Surgery, University Hospital of the Ludwig-Maximilians-University Munich, Campus Großhadern, Marchioninistraße 15, 81377, Munich, Germany
| | - Paolo Alberton
- Department of General, Trauma and Reconstructive Surgery, University Hospital of the Ludwig-Maximilians-University Munich, Campus Großhadern, Marchioninistraße 15, 81377, Munich, Germany
| | - Ines Westphal
- Department of General, Trauma and Reconstructive Surgery, University Hospital of the Ludwig-Maximilians-University Munich, Campus Großhadern, Marchioninistraße 15, 81377, Munich, Germany.,LivImplant GmbH, Starnberg, Germany
| | | | - Veronika Schönitzer
- Department of General, Trauma and Reconstructive Surgery, University Hospital of the Ludwig-Maximilians-University Munich, Campus Großhadern, Marchioninistraße 15, 81377, Munich, Germany
| | - Wolfgang Böcker
- Department of General, Trauma and Reconstructive Surgery, University Hospital of the Ludwig-Maximilians-University Munich, Campus Großhadern, Marchioninistraße 15, 81377, Munich, Germany
| | - Christian Kammerlander
- Department of General, Trauma and Reconstructive Surgery, University Hospital of the Ludwig-Maximilians-University Munich, Campus Großhadern, Marchioninistraße 15, 81377, Munich, Germany
| | - Matthias Schieker
- Department of General, Trauma and Reconstructive Surgery, University Hospital of the Ludwig-Maximilians-University Munich, Campus Großhadern, Marchioninistraße 15, 81377, Munich, Germany.,Novartis Institute for Biomedical Research, Basel, Switzerland.,LivImplant GmbH, Starnberg, Germany
| | - Attila Aszodi
- Department of General, Trauma and Reconstructive Surgery, University Hospital of the Ludwig-Maximilians-University Munich, Campus Großhadern, Marchioninistraße 15, 81377, Munich, Germany
| | - Carl Neuerburg
- Department of General, Trauma and Reconstructive Surgery, University Hospital of the Ludwig-Maximilians-University Munich, Campus Großhadern, Marchioninistraße 15, 81377, Munich, Germany.
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