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Gueorguiev B, Lenz M. [Cement augmentation and bone graft substitutes-Materials and biomechanics]. Unfallchirurg 2022; 125:430-435. [PMID: 35486124 DOI: 10.1007/s00113-022-01182-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Materials with different characteristics are used for cement augmentation and as bone graft substitutes. OBJECTIVE Cement augmentation and bone graft substitutes are the subject of current research. The evaluation of new knowledge allows its specific application. MATERIAL AND METHODS Selective literature search and outline of experimental research results on cement augmentation and bone graft substitutes. RESULTS Augmentation and bone graft substitutes are essential components of current trauma surgical procedures. Despite intensive research all materials have specific disadvantages. Cement augmentation of implants enhances not only the anchorage but also influences the failure mode. CONCLUSION Cement augmentation has large potential especially in osteoporotic bone. In load-bearing regions acrylic-based cements remain the standard of choice. Ceramic cements are preferred in non-load-bearing areas. Their combination with resorbable metals offers still largely unexplored potential. Virtual biomechanics can help improve the targeted application of cement augmentation.
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Affiliation(s)
- Boyko Gueorguiev
- AO Forschungsinstitut Davos, Clavadelerstraße 8, 7270, Davos, Schweiz.
| | - Mark Lenz
- AO Forschungsinstitut Davos, Clavadelerstraße 8, 7270, Davos, Schweiz.,Klinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Universitätsklinikum Jena, Friedrich-Schiller-Universität Jena, 07747, Jena, Deutschland
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Bonadies I, Di Cristo F, Valentino A, Peluso G, Calarco A, Di Salle A. pH-Responsive Resveratrol-Loaded Electrospun Membranes for the Prevention of Implant-Associated Infections. NANOMATERIALS 2020; 10:nano10061175. [PMID: 32560209 PMCID: PMC7353298 DOI: 10.3390/nano10061175] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 02/06/2023]
Abstract
To date, the implant-associated infections represent a worldwide challenge for the recently reported bacterial drug resistance that can lead to the inefficacy or low efficacy of conventional antibiotic therapies. Plant polyphenolic compounds, including resveratrol (RSV), are increasingly gaining consensus as valid and effective alternatives to antibiotics limiting antibiotic resistance. In this study, electrospun polylactic acid (PLA) membranes loaded with different concentrations of RSV are synthesized and characterized in their chemical, morphological, and release features. The obtained data show that the RSV release rate from the PLA-membranes is remarkably higher in acidic conditions than at neutral pH. In addition, a change in pH from neutral to slightly acidic triggers a significant increase in the RSV release. This behavior indicates that the PLA-RSV membranes can act as drug reservoir when the environmental pH is neutral, starting to release the bioactive molecules when the pH decreases, as in presence of oral bacterial infection. Indeed, our results demonstrate that PLA-RSV2 displays a significant antibacterial and antibiofilm activity against two bacterial strains, Pseudomonas aeruginosa PAO1, and Streptococcus mutans, responsible for both acute and chronic infections in humans, thus representing a promising solution for the prevention of the implant-associated infections.
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Affiliation(s)
- Irene Bonadies
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR) Via Campi Flegrei, 34, 80078 Pozzuoli (NA), Italy;
| | - Francesca Di Cristo
- Elleva Pharma S.R.L. Via Pietro Castellino, 111, 80131 Naples, Italy; (F.D.C.); (A.V.)
| | - Anna Valentino
- Elleva Pharma S.R.L. Via Pietro Castellino, 111, 80131 Naples, Italy; (F.D.C.); (A.V.)
| | - Gianfranco Peluso
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino 111, 80131 Naples, Italy; (G.P.); (A.D.S.)
| | - Anna Calarco
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino 111, 80131 Naples, Italy; (G.P.); (A.D.S.)
- Correspondence:
| | - Anna Di Salle
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino 111, 80131 Naples, Italy; (G.P.); (A.D.S.)
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Zhai Q, Han F, He Z, Shi C, Zhou P, Zhu C, Guo Q, Zhu X, Yang H, Li B. The "Magnesium Sacrifice" Strategy Enables PMMA Bone Cement Partial Biodegradability and Osseointegration Potential. Int J Mol Sci 2018; 19:E1746. [PMID: 29895809 PMCID: PMC6032233 DOI: 10.3390/ijms19061746] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 05/20/2018] [Accepted: 05/29/2018] [Indexed: 12/30/2022] Open
Abstract
Poly (methyl methacrylate) (PMMA)-based bone cements are the most commonly used injectable orthopedic materials due to their excellent injectability and mechanical properties. However, their poor biocompatibility and excessive stiffness may cause complications such as aseptic implant loosening and stress shielding. In this study, we aimed to develop a new type of partially biodegradable composite bone cement by incorporating magnesium (Mg) microspheres, known as "Mg sacrifices" (MgSs), in the PMMA matrix. Being sensitive to the physiological environment, the MgSs in PMMA could gradually degrade to produce bioactive Mg ions and, meanwhile, result in an interconnected macroporous structure within the cement matrix. The mechanical properties, solidification, and biocompatibility, both in vitro and in vivo, of PMMA⁻Mg bone cement were characterized. Interestingly, the incorporation of Mg microspheres did not markedly affect the mechanical strength of bone cement. However, the maximum temperature upon setting of bone cement decreased. This partially biodegradable composite bone cement showed good biocompatibility in vitro. In the in vivo study, considerable bony ingrowth occurred in the pores upon MgS degradation. Together, the findings from this study indicate that such partially biodegradable PMMA⁻Mg composite may be ideal bone cement for minimally invasive orthopedic surgeries such as vertebroplasty and kyphoplasty.
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Affiliation(s)
- Qingpan Zhai
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, China.
| | - Fengxuan Han
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, China.
| | - Zhiwei He
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, China.
| | - Chen Shi
- Department of Biomedical Engineering, National University of Singapore, 117583 Singapore, Singapore.
| | - Pinghui Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, China.
| | - Caihong Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, China.
| | - Qianping Guo
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, China.
| | - Xuesong Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, China.
| | - Huilin Yang
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, China.
| | - Bin Li
- College of Chemistry, Chemical Engineering and Materials Science, Orthopaedic Institute, Soochow University, Suzhou 215000, China.
- China Orthopaedic Regenerative Medicine Group (CORMed), Hangzhou 310000, China.
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Chu L, Jiang G, Hu XL, James TD, He XP, Li Y, Tang T. Osteogenesis, vascularization and osseointegration of a bioactive multiphase macroporous scaffold in the treatment of large bone defects. J Mater Chem B 2018; 6:4197-4204. [DOI: 10.1039/c8tb00766g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We report a segmental radial bone defect model used to evaluate the osteogenesis, vascularization and osseointegration of a bioactive multiphase macroporous scaffold with nano-crystal surface microstructures that can release bioactive ions.
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Affiliation(s)
- Linyang Chu
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
| | - Guoqiang Jiang
- Department of Orthopaedic Surgery
- Affiliated Hospital of School of Medicine
- Ningbo University
- Ningbo 315211
- P. R. China
| | - Xi-Le Hu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering
- Feringa Nobel Prize Scientist Joint Research Center
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
| | | | - Xiao-Peng He
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering
- Feringa Nobel Prize Scientist Joint Research Center
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Yaping Li
- Department of Orthopaedic Surgery
- Affiliated Hospital of School of Medicine
- Ningbo University
- Ningbo 315211
- P. R. China
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
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