1
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Jerban S, Moazamian D, Mohammadi HS, Ma Y, Jang H, Namiranian B, Shin SH, Alenezi S, Shah SB, Chung CB, Chang EY, Du J. More accurate trabecular bone imaging using UTE MRI at the resonance frequency of fat. Bone 2024; 184:117096. [PMID: 38631596 DOI: 10.1016/j.bone.2024.117096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/18/2024] [Accepted: 04/08/2024] [Indexed: 04/19/2024]
Abstract
High-resolution magnetic resonance imaging (HR-MRI) has been increasingly used to assess the trabecular bone structure. High susceptibility at the marrow/bone interface may significantly reduce the marrow's apparent transverse relaxation time (T2*), overestimating trabecular bone thickness. Ultrashort echo time MRI (UTE-MRI) can minimize the signal loss caused by susceptibility-induced T2* shortening. However, UTE-MRI is sensitive to chemical shift artifacts, which manifest as spatial blurring and ringing artifacts partially due to non-Cartesian sampling. In this study, we proposed UTE-MRI at the resonance frequency of fat to minimize marrow-related chemical shift artifacts and the overestimation of trabecular thickness. Cubes of trabecular bone from six donors (75 ± 4 years old) were scanned using a 3 T clinical scanner at the resonance frequencies of fat and water, respectively, using 3D UTE sequences with five TEs (0.032, 1.1, 2.2, 3.3, and 4.4 ms) and a clinical 3D gradient echo (GRE) sequence at 0.2 × 0.2 × 0.4 mm3 voxel size. Trabecular bone thickness was measured in 30 regions of interest (ROIs) per sample. MRI results were compared with thicknesses obtained from micro-computed tomography (μCT) at 50 μm3 voxel size. Linear regression models were used to calculate the coefficient of determination between MRI- and μCT-based trabecular thickness. All MRI-based trabecular thicknesses showed significant correlations with μCT measurements. The correlations were higher (examined with paired Student's t-test, P < 0.01) for 3D UTE images performed at the fat frequency (R2 = 0.59-0.74, P < 0.01) than those at the water frequency (R2 = 0.18-0.52, P < 0.01) and clinical GRE images (R2 = 0.39-0.47, P < 0.01). Significantly reduced correlations were observed with longer TEs. This study highlighted the feasibility of UTE-MRI at the fat frequency for a more accurate assessment of trabecular bone thickness.
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Affiliation(s)
- Saeed Jerban
- Department of Radiology, University of California, San Diego, La Jolla, CA, USA.
| | - Dina Moazamian
- Department of Radiology, University of California, San Diego, La Jolla, CA, USA
| | | | - Yajun Ma
- Department of Radiology, University of California, San Diego, La Jolla, CA, USA
| | - Hyungseok Jang
- Department of Radiology, University of California, San Diego, La Jolla, CA, USA
| | - Behnam Namiranian
- Department of Radiology, University of California, San Diego, La Jolla, CA, USA
| | - Soo Hyun Shin
- Department of Radiology, University of California, San Diego, La Jolla, CA, USA
| | - Salem Alenezi
- Research and Laboratories Sector, Saudi Food and Drug Authority, Riyadh, Saudi Arabia
| | - Sameer B Shah
- Radiology Service, Veterans Affairs San Diego Healthcare System, San Diego, La Jolla, CA, USA; Orthopaedic Research, University of California, San Diego, La Jolla, CA, USA
| | - Christine B Chung
- Department of Radiology, University of California, San Diego, La Jolla, CA, USA; Radiology Service, Veterans Affairs San Diego Healthcare System, San Diego, La Jolla, CA, USA
| | - Eric Y Chang
- Department of Radiology, University of California, San Diego, La Jolla, CA, USA; Radiology Service, Veterans Affairs San Diego Healthcare System, San Diego, La Jolla, CA, USA
| | - Jiang Du
- Department of Radiology, University of California, San Diego, La Jolla, CA, USA; Radiology Service, Veterans Affairs San Diego Healthcare System, San Diego, La Jolla, CA, USA.
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2
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Hafez IT, Biskos G. Bioinspired nanostructured hydroxyapatite-polyelectrolyte multilayers for stone conservation. J Colloid Interface Sci 2024; 674:459-473. [PMID: 38941938 DOI: 10.1016/j.jcis.2024.06.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/23/2024] [Accepted: 06/25/2024] [Indexed: 06/30/2024]
Abstract
Stone-built cultural heritage faces threats from natural forces and anthropogenic pollutants, including local climate, acid rain, and outdoor conditions like temperature fluctuations and wind exposure, all of which impact their structural integrity and lead to their degradation. The development of a water-based, environmentally-friendly protective coatings that meet a combination of requirements posed by the diversity of the substrates, different environmental conditions, and structures with complex geometries remains a formidable challenge, given the numerous obstacles faced by current conservation strategies. Here we report the structural, electrical, and mechanical characterization, along with performance testing, of a nanostructured hydrophilic and self-healing hybrid coating based on hydroxyapatite (HAp) nanocrystals and polyelectrolyte multilayers (PEM), formed in-situ on Greek marble through a simple spray layer-by-layer surface functionalization technique. The polyelectrolyte-hydroxyapatite multilayer (PHM) structure resembled the design of naturally forming trabecular bone, attained at a short procedural time. It exhibited chemical affinity, aesthetical compatibility and resistance to weathering while offering reversibility. The proposed method is able to generate micron-sized coatings with controlled properties, such as adhesion and self-healing, leading to less weathered surfaces. Our results show that the PHM is a highly effective protective material that can be applied for stone protection and other similar applications.
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Affiliation(s)
- Iosif T Hafez
- Science and Technology in Archaeology and Culture Research Center, The Cyprus Institute, Nicosia 2121, Cyprus; Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia 2121, Cyprus.
| | - George Biskos
- Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia 2121, Cyprus; Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft 2628 CN, the Netherlands
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3
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Hu J, Wei J, Liu J, Yuan L, Li Y, Luo X, Li Y, Li J. A Novel Strategy for Fabrication of Polyamide 66/Nanohydroxyapatite Composite Bone Repair Scaffolds by Low-Temperature Three-Dimensional Printing. ACS Biomater Sci Eng 2024; 10:4073-4084. [PMID: 38752228 DOI: 10.1021/acsbiomaterials.4c00457] [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: 06/11/2024]
Abstract
Due to the decomposition temperature of Polyamide 66 (PA66) in the environment is close to its thermoforming temperature, it is difficult to construct porous scaffolds of PA66/nanohydroxyapatite (PA66/HAp) by fused deposition modeling (FDM) three-dimensional (3D) printing. In this study, we demonstrated for the first time a method for 3D printing PA66/HAp composites at room temperature, prepared PA66/HAp printing ink using a mixed solvent of formic acid/dichloromethane (FA/DCM), and constructed a series of composite scaffolds with varying HAp content. This printing system can print composite materials with a high HAp content of 60 wt %, which is close to the mineral content in natural bone. The physicochemical evaluation presented that the hydroxyapatite was uniformly distributed within the PA66 matrix, and the PA66/HAp composite scaffold with 30 wt % HAp content exhibited optimal mechanical properties and printability. The results of in vitro cell culture experiments indicated that the incorporation of HAp into the PA66 matrix significantly improved the cell adhesion, proliferation, and osteogenic differentiation of bone marrow stromal cells (BMSCs) cultured on the scaffold. In vivo animal experiments suggested that the PA66/HAp composite material with 30 wt % HAp content had the best structural maintenance and osteogenic performance. The three-dimensional PA66/HAp composite scaffold prepared by low temperature printing in the current study holds great potential for the repair of large-area bone defects.
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Affiliation(s)
- Jiaxin Hu
- Research Center for Nano-Biomaterials Analytical and Testing Center, Sichuan University, Chengdu 610065, China
| | - Jiawei Wei
- Research Center for Nano-Biomaterials Analytical and Testing Center, Sichuan University, Chengdu 610065, China
| | - Jiangshan Liu
- Research Center for Nano-Biomaterials Analytical and Testing Center, Sichuan University, Chengdu 610065, China
| | - Li Yuan
- Research Center for Nano-Biomaterials Analytical and Testing Center, Sichuan University, Chengdu 610065, China
| | - Yongzhi Li
- Research Center for Nano-Biomaterials Analytical and Testing Center, Sichuan University, Chengdu 610065, China
| | - Xue Luo
- Research Center for Nano-Biomaterials Analytical and Testing Center, Sichuan University, Chengdu 610065, China
| | - Yubao Li
- Research Center for Nano-Biomaterials Analytical and Testing Center, Sichuan University, Chengdu 610065, China
| | - Jidong Li
- Research Center for Nano-Biomaterials Analytical and Testing Center, Sichuan University, Chengdu 610065, China
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4
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Thompson C, Domínguez G, Bardisa P, Liu Y, Fernández-Blázquez JP, Del Río JS, Echeverry-Rendon M, González C, Llorca J. Medical grade 3D printable bioabsorbable PLDL/Mg and PLDL/Zn composites for biomedical applications. J Biomed Mater Res A 2024; 112:798-811. [PMID: 38146214 DOI: 10.1002/jbm.a.37660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/13/2023] [Accepted: 12/12/2023] [Indexed: 12/27/2023]
Abstract
Medical grade PLDL, PLDL/Mg and PLDL/Zn filaments were manufactured by a dual extrusion method and used to prepare coupons and scaffolds with controlled porosity by fused filament fabrication. The mechanical properties, degradation mechanisms and biological performance were carefully analyzed. It was found that the presence of 4 vol.% of Mg and Zn particles did not substantially modify the mechanical properties but accelerated the degradation rate of PLDL. Moreover, the acidification of the pH due to degradation of the PLDL was reduced in the presence of metallic particles. Finally, cell adhesion and proliferation were excellent in the medical grade PLDL as well as in the polymer/metal composites. These results demonstrate the potential of bioabsorbable metal/polymer composites to tailor the mechanical properties, degradation rate and biocompatibility for specific clinical applications.
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Affiliation(s)
- Cillian Thompson
- IMDEA Materials Institute, Getafe, Spain
- Department of Material Science and Engineering, Universidad Carlos III de Madrid, Leganés, Spain
| | - Guillermo Domínguez
- IMDEA Materials Institute, Getafe, Spain
- Department of Material Science, Polytechnic University of Madrid/Universidad Politécnica de Madrid, Madrid, Spain
| | - Pilar Bardisa
- Departamento de Ingeniería Eléctrica, Electrónica, Automática y Física Aplicada, Universidad Politécnica de Madrid, Madrid, Spain
| | - Yuyao Liu
- IMDEA Materials Institute, Getafe, Spain
- Department of Material Science, Polytechnic University of Madrid/Universidad Politécnica de Madrid, Madrid, Spain
| | | | - José Sánchez Del Río
- Departamento de Ingeniería Eléctrica, Electrónica, Automática y Física Aplicada, Universidad Politécnica de Madrid, Madrid, Spain
| | | | - Carlos González
- IMDEA Materials Institute, Getafe, Spain
- Department of Material Science, Polytechnic University of Madrid/Universidad Politécnica de Madrid, Madrid, Spain
| | - Javier Llorca
- IMDEA Materials Institute, Getafe, Spain
- Department of Material Science, Polytechnic University of Madrid/Universidad Politécnica de Madrid, Madrid, Spain
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5
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Sadeghi-Ghadikolaei M, Vasheghani-Farahani E, Bagheri F, Khorrami Moghaddam A, Mellati A, Karimizade A. Fabrication of 3D chitosan/polyvinyl alcohol/brushite nanofibrous scaffold for bone tissue engineering by electrospinning using a novel falling film collector. Int J Biol Macromol 2024; 272:132874. [PMID: 38838901 DOI: 10.1016/j.ijbiomac.2024.132874] [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: 02/03/2024] [Revised: 05/06/2024] [Accepted: 06/01/2024] [Indexed: 06/07/2024]
Abstract
Despite its advantages, electrospinning has limited effectiveness in 3D scaffolding due to the high density of fibers it produces. In this research, a novel electrospinning collector was developed to overcome this constraint. An aqueous suspension containing chitosan/polyvinyl alcohol nanofibers was prepared employing a unique falling film collector. Suspension molding by freeze-drying resulted in a 3D nanofibrous scaffold (3D-NF). The mineralized scaffold was obtained by brushite deposition on 3D-NF using wet chemical mineralization by new sodium tripolyphosphate and calcium chloride dihydrate precursors. The 3D-NF was optimized and compared with the conventional electrospun 2D nanofibrous scaffold (2D-NF) and the 3D freeze-dried scaffold (3D-FD). Both minor fibrous and major freeze-dried pore shapes were present in 3D-NFs with sizes of 16.11-24.32 μm and 97.64-234.41 μm, respectively. The scaffolds' porosity increased by 53 % to 73 % compared to 2D-NFs. Besides thermal stability, mineralization improved the 3D-NF's ultimate strength and elastic modulus by 2.2 and 4.7 times, respectively. In vitro cell studies using rat bone marrow mesenchymal cells confirmed cell infiltration up to 290 μm and scaffold biocompatibility. The 3D-NFs given nanofibers and brushite inclusion exhibited considerable osteoinductivity. Therefore, falling film collectors can potentially be applied to prepare 3D-NFs from electrospinning without post-processing.
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Affiliation(s)
- Mohsen Sadeghi-Ghadikolaei
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | | | - Fatemeh Bagheri
- Biotechnology Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Alireza Khorrami Moghaddam
- Radiology and Medical Physics Department, Faculty of Paramedical Science, Mazandaran University of Medical Sciences, Sari, Iran
| | - Amir Mellati
- Tissue Engineering and Regenerative Medicine Department, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ayoob Karimizade
- Tissue Engineering and Regenerative Medicine Department, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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6
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Bittner-Frank M, Reisinger AG, Andriotis OG, Pahr DH, Thurner PJ. Cortical and trabecular mechanical properties in the femoral neck vary differently with changes in bone mineral density. JBMR Plus 2024; 8:ziae049. [PMID: 38736661 PMCID: PMC11088358 DOI: 10.1093/jbmrpl/ziae049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/29/2024] [Accepted: 03/24/2024] [Indexed: 05/14/2024] Open
Abstract
Graphical Abstract.
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Affiliation(s)
- Martin Bittner-Frank
- Division of Biomechanics, Karl Landsteiner University of Health Sciences, A-3500 Krems an der Donau, Austria
| | - Andreas G Reisinger
- Division of Biomechanics, Karl Landsteiner University of Health Sciences, A-3500 Krems an der Donau, Austria
| | - Orestis G Andriotis
- Institute of Lightweight Design and Structural Biomechanics, TU Wien, A-1060 Vienna, Austria
| | - Dieter H Pahr
- Division of Biomechanics, Karl Landsteiner University of Health Sciences, A-3500 Krems an der Donau, Austria
- Institute of Lightweight Design and Structural Biomechanics, TU Wien, A-1060 Vienna, Austria
| | - Philipp J Thurner
- Institute of Lightweight Design and Structural Biomechanics, TU Wien, A-1060 Vienna, Austria
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7
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Tanguay AP, Menon NG, Boudreau MH, Jastrzebski S, Woods PS, Doyle EA, Edwards WB, Jay GD, Deymier AC, Lorenzo J, Lee SK, Schmidt TA. PRG4 deficiency in mice alters skeletal structure, mechanics, and calvarial osteoclastogenesis, and rhPRG4 inhibits in vitro osteoclastogenesis. J Orthop Res 2024; 42:1231-1243. [PMID: 38111181 DOI: 10.1002/jor.25772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/14/2023] [Accepted: 12/12/2023] [Indexed: 12/20/2023]
Abstract
Osteoporosis is a chronic disease characterized by reduced bone mass and increased fracture risk, estimated to affect over 10 million people in the United States alone. Drugs used to treat bone loss often come with significant limitations and/or long-term safety concerns. Proteoglycan-4 (PRG4, also known as lubricin) is a mucin-like glycoprotein best known for its boundary lubricating function of articular cartilage. In more recent years, it has been shown that PRG4 has anti-inflammatory properties, contributes to the maintenance of subchondral bone integrity, and patients with PRG4 mutations are osteopenic. However, it remains unknown how PRG4 impacts mechanical and material properties of bone. Therefore, our objective was to perform a phenotyping study of bone in a Prg4 gene trap (GT) mouse (PRG4 deficient). We found that femurs of Prg4 GT mice have altered mechanical, structural, and material properties relative to wildtype littermates. Additionally, Prg4 GT mice have a greater number of calvarial osteoclasts than wildtype mice, but do not have a notable inflammatory serum profile. Finally, Prg4 GT mice do not have an altered rate of bone formation, and exogenous recombinant human PRG4 (rhPRG4) administration inhibited osteoclastogenesis in vitro, suggesting that the skeletal phenotype may be due to changes in bone resorption. Overall, this work demonstrates that PRG4 deficiency affects several integral properties of bone structure, mechanics, and skeletal cell activity, and provides the foundation and insight toward future work evaluating PRG4 as a potential therapeutic target in treating bone loss.
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Affiliation(s)
- Adam P Tanguay
- Department of Biomedical Engineering, UConn Health, Farmington, Connecticut, USA
| | - Nikhil G Menon
- Department of Biomedical Engineering, UConn Health, Farmington, Connecticut, USA
| | | | - Sandra Jastrzebski
- Department of Medicine, UConn Health, Farmington, Connecticut, USA
- Department of Orthopaedic Surgery, UConn Health, Farmington, Connecticut, USA
| | - Paige S Woods
- Department of Biomedical Engineering, UConn Health, Farmington, Connecticut, USA
| | - Erica A Doyle
- Department of Biomedical Engineering, UConn Health, Farmington, Connecticut, USA
| | - W Brent Edwards
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | - Gregory D Jay
- Department of Medicine, Brown University Warren Alpert Medical School, Providence, Rhode Island, USA
- Department of Engineering, Brown University Warren Alpert Medical School, Providence, Rhode Island, USA
| | - Alix C Deymier
- Department of Biomedical Engineering, UConn Health, Farmington, Connecticut, USA
| | - Joseph Lorenzo
- Department of Medicine, UConn Health, Farmington, Connecticut, USA
- Department of Orthopaedic Surgery, UConn Health, Farmington, Connecticut, USA
| | - Sun-Kyeong Lee
- Center on Aging, UConn Health, Farmington, Connecticut, USA
| | - Tannin A Schmidt
- Department of Biomedical Engineering, UConn Health, Farmington, Connecticut, USA
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ANGGORO D, PURBA MS, JIANG F, NISHIDA N, ITOH H, ITAMOTO K, NEMOTO Y, NAKAICHI M, SUNAHARA H, TANI K. Elucidation of the radius and ulna fracture mechanisms in toy poodle dogs using finite element analysis. J Vet Med Sci 2024; 86:575-583. [PMID: 38556325 PMCID: PMC11144531 DOI: 10.1292/jvms.23-0520] [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: 12/26/2023] [Accepted: 03/18/2024] [Indexed: 04/02/2024] Open
Abstract
Fractures occurring in the distal radius and ulna of toy breed dogs pose distinctive challenges for veterinary practitioners, requiring specialized treatment approaches primarily based on anatomical features. Finite Element Analysis (FEA) was applied to conduct numerical experiments to determine stress distribution across the bone. This methodology offers an alternative substitute for directly investigating these phenomena in living dog experiments, which could present ethical obstacles. A three-dimensional bone model of the metacarpal, carpal, radius, ulna, and humerus was reconstructed from Computed Tomography (CT) images of the toy poodle and dachshund forelimb. The model was designed to simulate the jumping and landing conditions from a vertical distance of 40 cm to the ground within a limited timeframe. The investigation revealed considerable variations in stress distribution patterns between the radius and ulna of toy poodles and dachshunds, indicating notably elevated stress levels in toy poodles compared to dachshunds. In static and dynamic stress analysis, toy poodles exhibit peak stress levels at the distal radius and ulna. The Von Mises stresses for toy poodles reach 90.07 MPa (static) and 1,090.75 MPa (dynamic) at the radius and 1,677.97 MPa (static) and 1,047.98 MPa (dynamic) at the ulna. Conversely, dachshunds demonstrate lower stress levels for 5.39 MPa (static) and 231.79 MPa (dynamic) at the radius and 390.56 MPa (static) and 513.28 MPa (dynamic) at the ulna. The findings offer valuable insights for modified treatment approaches in managing fractures in toy breed dogs, optimizing care and outcomes.
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Affiliation(s)
- Dito ANGGORO
- Laboratory of Veterinary Surgery, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, Gadjah Mada University, Yogyakarta, Indonesia
| | - Melpa Susanti PURBA
- Laboratory of Veterinary Surgery, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Fei JIANG
- Department of Mechanical Engineering, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, Japan
| | - Norihiro NISHIDA
- Department of Orthopedic Surgery, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Harumichi ITOH
- Laboratory of Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Kazuhito ITAMOTO
- Laboratory of Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Yuki NEMOTO
- Laboratory of Veterinary Radiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Munekazu NAKAICHI
- Laboratory of Veterinary Radiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Hiroshi SUNAHARA
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Kenji TANI
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
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Yu HP, Zhu YJ. Guidelines derived from biomineralized tissues for design and construction of high-performance biomimetic materials: from weak to strong. Chem Soc Rev 2024; 53:4490-4606. [PMID: 38502087 DOI: 10.1039/d2cs00513a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Living organisms in nature have undergone continuous evolution over billions of years, resulting in the formation of high-performance fracture-resistant biomineralized tissues such as bones and teeth to fulfill mechanical and biological functions, despite the fact that most inorganic biominerals that constitute biomineralized tissues are weak and brittle. During the long-period evolution process, nature has evolved a number of highly effective and smart strategies to design chemical compositions and structures of biomineralized tissues to enable superior properties and to adapt to surrounding environments. Most biomineralized tissues have hierarchically ordered structures consisting of very small building blocks on the nanometer scale (nanoparticles, nanofibers or nanoflakes) to reduce the inherent weaknesses and brittleness of corresponding inorganic biominerals, to prevent crack initiation and propagation, and to allow high defect tolerance. The bioinspired principles derived from biomineralized tissues are indispensable for designing and constructing high-performance biomimetic materials. In recent years, a large number of high-performance biomimetic materials have been prepared based on these bioinspired principles with a large volume of literature covering this topic. Therefore, a timely and comprehensive review on this hot topic is highly important and contributes to the future development of this rapidly evolving research field. This review article aims to be comprehensive, authoritative, and critical with wide general interest to the science community, summarizing recent advances in revealing the formation processes, composition, and structures of biomineralized tissues, providing in-depth insights into guidelines derived from biomineralized tissues for the design and construction of high-performance biomimetic materials, and discussing recent progress, current research trends, key problems, future main research directions and challenges, and future perspectives in this exciting and rapidly evolving research field.
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Affiliation(s)
- Han-Ping Yu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China.
| | - Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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10
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Walle M, Yeritsyan D, Abbasian M, Oftadeh R, Müller R, Nazarian A. A graph model to describe the network connectivity of trabecular plates and rods. Front Bioeng Biotechnol 2024; 12:1384280. [PMID: 38770275 PMCID: PMC11103010 DOI: 10.3389/fbioe.2024.1384280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 04/19/2024] [Indexed: 05/22/2024] Open
Abstract
Introduction: The trabecular network is perceived as a collection of interconnected plate- (P) and rod-like (R) elements. Previous research has highlighted how these elements and their connectivity influence the mechanical properties of bone, yet further work is required to elucidate better the deeply interconnected nature of the trabecular network with distinct element formations conducting forces per their mechanical boundary conditions. Within this network, forces act through elements: a rod or plate with force applied to one end will transmit this force to a component connected to the other end, defining the boundary conditions for the loading of each element. To that end, this study has two aims: First, to investigate the connectivity of individually segmented elements of trabecular bone with respect to their local boundary conditions as defined by the surrounding trabecular network and linking them directly to the bone's overall mechanical response during loading using a mathematical graph model of the plate and rod (PR) Network. Second, we use this model to quantify side artifacts, a known artifact when testing an excised specimen of trabecular bone, where vertical trabeculae lose their load-bearing capacity due to a loss of connectivity, ultimately resulting in a change of the trabecular network topology. Resuts: Connected elements derived from our model predicted apparent elastic modulus by fitting a linear regression (R 2 = 0.81). In comparison, prediction using conventional bone volume fraction results in a lower accuracy (R 2 = 0.72), demonstrating the ability of the PR Network to estimate compressive elastic modulus independent of specimen size or loading boundary condition. Discussion: PR Network models are a novel approach to describing connectivity within the trabecular network and incorporating mechanical boundary conditions within the morphological analysis, thus enabling the study of intrinsic material properties of trabecular bone. Ultimately, PR Network models may be an early predictor or provide further insights into osteo-degenerative diseases.
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Affiliation(s)
- Matthias Walle
- Musculoskeletal Translational Innovation Initiative, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States
- Institute for Biomechanics, ETH Zürich, Zürich, Switzerland
| | - Diana Yeritsyan
- Musculoskeletal Translational Innovation Initiative, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States
| | - Mohammadreza Abbasian
- Musculoskeletal Translational Innovation Initiative, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States
| | - Ramin Oftadeh
- Musculoskeletal Translational Innovation Initiative, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States
| | - Ralph Müller
- Institute for Biomechanics, ETH Zürich, Zürich, Switzerland
| | - Ara Nazarian
- Musculoskeletal Translational Innovation Initiative, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States
- Department of Orthopaedic Surgery, Yerevan State Medical University, Yerevan, Armenia
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11
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Ortega-Yago A, Ferràs-Tarragó J, de la Calva-Ceinos C, Baeza-Oliete J, Angulo-Sánchez MA, Baixauli-García I, Arguelles-Linares F, Amaya-Valero JV, Baixauli-García F, Medina-Bessó P. [Translated article] Mechanical resistance of polylactic acid bone matrices developed by 3D printing for the reconstruction of bone defects. Rev Esp Cir Ortop Traumatol (Engl Ed) 2024; 68:T262-T270. [PMID: 38253238 DOI: 10.1016/j.recot.2024.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/01/2023] [Indexed: 01/24/2024] Open
Abstract
INTRODUCTION Bone defects are one of the main limitations in orthopaedic surgery and traumatology. For this reason, multiple bone replacement systems have been developed, either by prosthetic implant or by substitution with osteoforming substances, whose limitations are their survival and lack of structurality, respectively. The objective of this work is the generation of a new material for the creation of biologically active structures that have sufficient tensile strength to maintain the structure during remodelling. MATERIAL AND METHODS A new filament based on the fusion of natural polylactide acid (PLA) powder was designed for the generation of pieces by means of fused deposition modelling (FDM) on which to carry out tensile mechanical tests of osteosynthesis material. A total of 13 groups with different cortical thickness, filling and layer height were carried out, with 10 tensile tests in each group, defining the tensile breaking limit for each group. The regression lines for each group and their mechanical resistance to traction on the filament used were determined. RESULTS The filament ratio per contact surface unit with the osteosynthesis used was the main determinant of the mechanical resistance to traction, either at the expense of the increase in cortical thickness or by the increase in the percentage of cancellous bone filling. Layer height had a minor effect on tensile strength. The regression value was high for cortical thickness and cancellous filling, being elements with a predictable biomechanical behaviour. CONCLUSIONS The new methodology allows the creation of personalised neutral and implantable PLA bone matrices for the reconstruction of large bone defects by means of 3D printing by FDM with a mechanical resistance to traction greater than that of current biological support structures.
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Affiliation(s)
- A Ortega-Yago
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Departamento de Fisiología, Universidad de Valencia, Valencia, Spain
| | - J Ferràs-Tarragó
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Departamento de Fisiología, Universidad de Valencia, Valencia, Spain.
| | - C de la Calva-Ceinos
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Departamento de Fisiología, Universidad de Valencia, Valencia, Spain
| | - J Baeza-Oliete
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Departamento de Fisiología, Universidad de Valencia, Valencia, Spain
| | - M A Angulo-Sánchez
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Departamento de Fisiología, Universidad de Valencia, Valencia, Spain
| | - I Baixauli-García
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Departamento de Fisiología, Universidad de Valencia, Valencia, Spain
| | - F Arguelles-Linares
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Departamento de Fisiología, Universidad de Valencia, Valencia, Spain
| | - J V Amaya-Valero
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Departamento de Fisiología, Universidad de Valencia, Valencia, Spain
| | - F Baixauli-García
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Departamento de Fisiología, Universidad de Valencia, Valencia, Spain
| | - P Medina-Bessó
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; Departamento de Fisiología, Universidad de Valencia, Valencia, Spain
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Kunath BA, Beloglowka K, Rainbow R, Ploeg HL. Mechanical loading of ex vivo bovine trabecular bone in 3D printed bioreactor chambers. J Mech Behav Biomed Mater 2024; 153:106470. [PMID: 38422872 DOI: 10.1016/j.jmbbm.2024.106470] [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: 10/29/2023] [Revised: 02/05/2024] [Accepted: 02/16/2024] [Indexed: 03/02/2024]
Abstract
Previous ex vivo bone culture methods have successfully implemented polycarbonate (PC) bioreactors to investigate bone adaptation to mechanical load; however, they are difficult to fabricate and have been limited to a 5 mm maximum specimen height. The objective of this study was to validate a custom-made 3D printed MED610TM bioreactor system that addresses the limitations of the PC bioreactor and assess its efficacy in ex vivo bone culture. Twenty-three viable trabecular bone cores (10 mm height by 10 mm diameter) from an 18-month-old bovine sternum were cultured in MED610TM bioreactors with culture medium at 37 °C and 5% CO2 for 21-days. Bone cores were ranked based on their day 0 apparent elastic modulus (Eapp) and evenly separated into a "Load" group (n = 12) and a control group (n = 11). The Load group was loaded five times per week with a sinusoidal strain waveform between -1000 and -5000 με for 120 cycles at 2 Hz. Eapp was assessed on day 0, 8, and 21 using quasi-static tests with a -4000 με applied strain. Over 21-days, the Eapp of Load group samples tended to increase by more than double the control group (53.4% versus 20.9%) and no visual culture contamination was observed. This study demonstrated that bone organ culture in 3D printed MED610TM bioreactors replicated Eapp trends found in previous studies with PC bioreactors. However, further studies are warranted with a larger sample size to increase statistical power and histology to assess cell viability and bone mineral apposition rate.
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Affiliation(s)
- Brian A Kunath
- Department of Mechanical and Materials Engineering, Queen's University, Kingston, ON, Canada; Centre for Health Innovation, Queen's University, Kingston, ON, Canada.
| | - Kail Beloglowka
- Department of Mechanical and Materials Engineering, Queen's University, Kingston, ON, Canada; Centre for Health Innovation, Queen's University, Kingston, ON, Canada.
| | - Roshni Rainbow
- Department of Mechanical and Materials Engineering, Queen's University, Kingston, ON, Canada; Centre for Health Innovation, Queen's University, Kingston, ON, Canada.
| | - Heidi-Lynn Ploeg
- Department of Mechanical and Materials Engineering, Queen's University, Kingston, ON, Canada; Centre for Health Innovation, Queen's University, Kingston, ON, Canada.
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Wu Y, Ji Y, Lyu Z. 3D printing technology and its combination with nanotechnology in bone tissue engineering. Biomed Eng Lett 2024; 14:451-464. [PMID: 38645590 PMCID: PMC11026358 DOI: 10.1007/s13534-024-00350-x] [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: 06/05/2023] [Revised: 12/18/2023] [Accepted: 12/30/2023] [Indexed: 04/23/2024] Open
Abstract
With the graying of the world's population, the morbidity of age-related chronic degenerative bone diseases, such as osteoporosis and osteoarthritis, is increasing yearly, leading to an increased risk of bone defects, while current treatment methods face many problems, such as shortage of grafts and an incomplete repair. Therefore, bone tissue engineering offers an alternative solution for regenerating and repairing bone tissues by constructing bioactive scaffolds with porous structures that provide mechanical support to damaged bone tissue while promoting angiogenesis and cell adhesion, proliferation, and activity. 3D printing technology has become the primary scaffold manufacturing method due to its ability to precisely control the internal pore structure and complex spatial shape of bone scaffolds. In contrast, the fast development of nanotechnology has provided more possibilities for the internal structure and biological function of scaffolds. This review focuses on the application of 3D printing technology in bone tissue engineering and nanotechnology in the field of bone tissue regeneration and repair, and explores the prospects for the integration of the two technologies.
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Affiliation(s)
- Yuezhou Wu
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001 China
| | - Yucheng Ji
- Department of Spine Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
| | - Zhuocheng Lyu
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001 China
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14
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Ortega-Yago A, Ferràs-Tarragó J, de la Calva-Ceinos C, Baeza-Oliete J, Angulo-Sánchez MA, Baixauli-García I, Arguelles-Linares F, Amaya-Valero JV, Baixauli-García F, Medina-Bessó P. Mechanical resistance of polylactic acid bone matrices developed by 3D printing for the reconstruction of bone defects. Rev Esp Cir Ortop Traumatol (Engl Ed) 2024; 68:262-270. [PMID: 36754255 DOI: 10.1016/j.recot.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/25/2023] [Accepted: 02/01/2023] [Indexed: 02/10/2023] Open
Abstract
INTRODUCTION Bone defects are one of the main limitations in orthopedic surgery and traumatology. For this reason, multiple bone replacement systems have been developed, either by prosthetic implant or by substitution with osteoforming substances, whose limitations are their survival and lack of structurality, respectively. The objective of this work is the generation of a new material for the creation of biologically active structures that have sufficient tensile strength to maintain the structure during remodeling. MATERIAL AND METHODS A new filament based on the fusion of natural polylactide acid (PLA) powder was designed for the generation of pieces by means of fused deposition modeling (FDM) on which to carry out tensile mechanical tests of osteosynthesis material. A total of 13 groups with different cortical thickness, filling and layer height were carried out, with 10 tensile tests in each group, defining the tensile breaking limit for each group. The regression lines for each group and their mechanical resistance to traction on the filament used were determined. RESULTS The filament ratio per contact surface unit with the osteosynthesis used was the main determinant of the mechanical resistance to traction, either at the expense of the increase in cortical thickness or by the increase in the percentage of cancellous bone filling. Layer height had a minor effect on tensile strength. The regression value was high for cortical thickness and cancellous filling, being elements with a predictable biomechanical behavior. CONCLUSIONS The new methodology allows the creation of personalized neutral and implantable PLA bone matrices for the reconstruction of large bone defects by means of 3D printing by FDM with a mechanical resistance to traction greater than that of current biological support structures.
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Affiliation(s)
- A Ortega-Yago
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, España; Departamento de Fisiología, Universidad de Valencia, Valencia, España
| | - J Ferràs-Tarragó
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, España; Departamento de Fisiología, Universidad de Valencia, Valencia, España.
| | - C de la Calva-Ceinos
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, España; Departamento de Fisiología, Universidad de Valencia, Valencia, España
| | - J Baeza-Oliete
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, España; Departamento de Fisiología, Universidad de Valencia, Valencia, España
| | - M A Angulo-Sánchez
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, España; Departamento de Fisiología, Universidad de Valencia, Valencia, España
| | - I Baixauli-García
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, España; Departamento de Fisiología, Universidad de Valencia, Valencia, España
| | - F Arguelles-Linares
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, España; Departamento de Fisiología, Universidad de Valencia, Valencia, España
| | - J V Amaya-Valero
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, España; Departamento de Fisiología, Universidad de Valencia, Valencia, España
| | - F Baixauli-García
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, España; Departamento de Fisiología, Universidad de Valencia, Valencia, España
| | - P Medina-Bessó
- Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario y Politécnico La Fe, Valencia, España; Departamento de Fisiología, Universidad de Valencia, Valencia, España
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Weiss MB, Syed SA, Whiteson HZ, Hirani R, Etienne M, Tiwari RK. Navigating Post-Traumatic Osteoporosis: A Comprehensive Review of Epidemiology, Pathophysiology, Diagnosis, Treatment, and Future Directions. Life (Basel) 2024; 14:561. [PMID: 38792583 PMCID: PMC11122478 DOI: 10.3390/life14050561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/14/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024] Open
Abstract
Post-traumatic osteoporosis (PTO) presents a significant challenge in clinical practice, characterized by demineralization and decreased skeletal integrity following severe traumatic injuries. This literature review manuscript addresses the knowledge gaps surrounding PTO, encompassing its epidemiology, pathophysiology, risk factors, diagnosis, treatment, prognosis, and future directions. This review emphasizes the complexity of the etiology of PTO, highlighting the dysregulation of biomineralization processes, inflammatory cytokine involvement, hormonal imbalances, glucocorticoid effects, vitamin D deficiency, and disuse osteoporosis. Moreover, it underscores the importance of multidisciplinary approaches for risk mitigation and advocates for improved diagnostic strategies to differentiate PTO from other musculoskeletal pathologies. This manuscript discusses various treatment modalities, including pharmacotherapy, dietary management, and physical rehabilitation, while also acknowledging the limited evidence on their long-term effectiveness and outcomes in PTO patients. Future directions in research are outlined, emphasizing the need for a deeper understanding of the molecular mechanisms underlying PTO and the evaluation of treatment strategies' efficacy. Overall, this review provides a comprehensive overview of PTO and highlights avenues for future investigation to enhance clinical management and patient outcomes.
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Affiliation(s)
- Matthew B. Weiss
- School of Medicine, New York Medical College, Valhalla, NY 10595, USA (H.Z.W.); (R.H.); (M.E.)
| | - Shoaib A. Syed
- School of Medicine, New York Medical College, Valhalla, NY 10595, USA (H.Z.W.); (R.H.); (M.E.)
| | - Harris Z. Whiteson
- School of Medicine, New York Medical College, Valhalla, NY 10595, USA (H.Z.W.); (R.H.); (M.E.)
| | - Rahim Hirani
- School of Medicine, New York Medical College, Valhalla, NY 10595, USA (H.Z.W.); (R.H.); (M.E.)
- Graduate School of Biomedical Sciences, New York Medical College, Valhalla, NY 10595, USA
| | - Mill Etienne
- School of Medicine, New York Medical College, Valhalla, NY 10595, USA (H.Z.W.); (R.H.); (M.E.)
- Department of Neurology, New York Medical College, Valhalla, NY 10595, USA
| | - Raj K. Tiwari
- School of Medicine, New York Medical College, Valhalla, NY 10595, USA (H.Z.W.); (R.H.); (M.E.)
- Graduate School of Biomedical Sciences, New York Medical College, Valhalla, NY 10595, USA
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Berni M, Marchiori G, Baleani M, Giavaresi G, Lopomo NF. Biomechanics of the Human Osteochondral Unit: A Systematic Review. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1698. [PMID: 38612211 PMCID: PMC11012636 DOI: 10.3390/ma17071698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/17/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024]
Abstract
The damping system ensured by the osteochondral (OC) unit is essential to deploy the forces generated within load-bearing joints during locomotion, allowing furthermore low-friction sliding motion between bone segments. The OC unit is a multi-layer structure including articular cartilage, as well as subchondral and trabecular bone. The interplay between the OC tissues is essential in maintaining the joint functionality; altered loading patterns can trigger biological processes that could lead to degenerative joint diseases like osteoarthritis. Currently, no effective treatments are available to avoid degeneration beyond tissues' recovery capabilities. A thorough comprehension on the mechanical behaviour of the OC unit is essential to (i) soundly elucidate its overall response to intra-articular loads for developing diagnostic tools capable of detecting non-physiological strain levels, (ii) properly evaluate the efficacy of innovative treatments in restoring physiological strain levels, and (iii) optimize regenerative medicine approaches as potential and less-invasive alternatives to arthroplasty when irreversible damage has occurred. Therefore, the leading aim of this review was to provide an overview of the state-of-the-art-up to 2022-about the mechanical behaviour of the OC unit. A systematic search is performed, according to PRISMA standards, by focusing on studies that experimentally assess the human lower-limb joints' OC tissues. A multi-criteria decision-making method is proposed to quantitatively evaluate eligible studies, in order to highlight only the insights retrieved through sound and robust approaches. This review revealed that studies on human lower limbs are focusing on the knee and articular cartilage, while hip and trabecular bone studies are declining, and the ankle and subchondral bone are poorly investigated. Compression and indentation are the most common experimental techniques studying the mechanical behaviour of the OC tissues, with indentation also being able to provide information at the micro- and nanoscales. While a certain comparability among studies was highlighted, none of the identified testing protocols are currently recognised as standard for any of the OC tissues. The fibril-network-reinforced poro-viscoelastic constitutive model has become common for describing the response of the articular cartilage, while the models describing the mechanical behaviour of mineralised tissues are usually simpler (i.e., linear elastic, elasto-plastic). Most advanced studies have tested and modelled multiple tissues of the same OC unit but have done so individually rather than through integrated approaches. Therefore, efforts should be made in simultaneously evaluating the comprehensive response of the OC unit to intra-articular loads and the interplay between the OC tissues. In this regard, a multidisciplinary approach combining complementary techniques, e.g., full-field imaging, mechanical testing, and computational approaches, should be implemented and validated. Furthermore, the next challenge entails transferring this assessment to a non-invasive approach, allowing its application in vivo, in order to increase its diagnostic and prognostic potential.
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Affiliation(s)
- Matteo Berni
- Laboratorio di Tecnologia Medica, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy; (M.B.); (M.B.)
| | - Gregorio Marchiori
- Scienze e Tecnologie Chirurgiche, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy;
| | - Massimiliano Baleani
- Laboratorio di Tecnologia Medica, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy; (M.B.); (M.B.)
| | - Gianluca Giavaresi
- Scienze e Tecnologie Chirurgiche, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy;
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Gersie T, Bitter T, Wolfson D, Freeman R, Verdonschot N, Janssen D. Quantification of long-term nonlinear stress relaxation of bovine trabecular bone. J Mech Behav Biomed Mater 2024; 152:106434. [PMID: 38350383 DOI: 10.1016/j.jmbbm.2024.106434] [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: 06/09/2023] [Revised: 01/11/2024] [Accepted: 01/25/2024] [Indexed: 02/15/2024]
Abstract
The reliability of computational models in orthopedic biomechanics depends often on the accuracy of the bone material properties. It is widely recognized that the mechanical response of trabecular bone is time-dependent, yet it is often ignored for the sake of simplicity. Previous investigations into the viscoelastic properties of trabecular bone have not explored the relationship between nonlinear stress relaxation and bone mineral density. The inclusion of this behavior could enhance the accuracy of simulations of orthopedic interventions, such as of primary fixation of implants. Although methods to quantify the viscoelastic behavior are known, the time period during which the viscoelastic properties should be investigated to obtain reliable predictions is currently unclear. Therefore, this study aimed to: 1) Investigate the duration of stress relaxation in bovine trabecular bone; 2) construct a material model that describes the nonlinear viscoelastic behavior of uniaxial stress relaxation experiments on trabecular bone; and 3) implement bone density into this model. Uniaxial compressive stress relaxation experiments were performed with cylindrical bovine femoral trabecular bone samples (n = 16) with constant strain held for 24 h. Additionally, multiple stress relaxation experiments with four ascending strain levels with a holding time of 30 min, based on the results of the 24-h experiment, were executed on 18 bovine bone cores. The bone specimens used in this study had a mean diameter of 12.80 mm and a mean height of 28.70 mm. A Schapery and a Superposition model were used to capture the nonlinear stress relaxation behavior in terms of applied strain level and bone mineral density. While most stress relaxation happened in the first 10 min (up to 53 %) after initial compression, the stress relaxation continued even after 24 h. Up to 69 % of stress relaxation was observed at 24 h. Extrapolating the results of 30 min of experimental data to 24 h provided a good fit for accuracy with much improved experimental efficiency. The Schapery and Superposition model were both capable of fitting the repeated stress relaxation in a sample-by-sample approach. However, since bone mineral density did not influence the time-dependent behavior, only the Superposition model could be used for a group-based model fit. Although the sample-by-sample approach was more accurate for an individual specimen, the group based approach is considered a useful model for general application.
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Affiliation(s)
- Thomas Gersie
- Radboudumc, Orthopaedic Research Lab, PO Box 9101, 6500 HB, Nijmegen, Netherlands.
| | - Thom Bitter
- Radboudumc, Orthopaedic Research Lab, PO Box 9101, 6500 HB, Nijmegen, Netherlands
| | - David Wolfson
- DePuy Synthes Joint Reconstruction, WW Research & Development, LS11 OBG, Leeds, UK
| | - Robert Freeman
- DePuy Synthes Joint Reconstruction, WW Research & Development, LS11 OBG, Leeds, UK
| | - Nico Verdonschot
- Radboudumc, Orthopaedic Research Lab, PO Box 9101, 6500 HB, Nijmegen, Netherlands; University of Twente, Faculty of Science and Technology, 7522LW, Enschede, Netherlands
| | - Dennis Janssen
- Radboudumc, Orthopaedic Research Lab, PO Box 9101, 6500 HB, Nijmegen, Netherlands
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18
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Santschi EM. Equine subchondral lucencies: Knowledge from the medial femoral condyle. Vet Surg 2024; 53:426-436. [PMID: 38229531 DOI: 10.1111/vsu.14062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/25/2023] [Accepted: 12/02/2023] [Indexed: 01/18/2024]
Abstract
Equine subchondral lucencies (SCL) have been described since the first availability of suitable radiographic equipment. The initial clinical sign can be lameness, but SCLs are often first found on surveys of juvenile horses and are primarily a radiographic concern for public auctions. When lameness is present, it varies from subtle to obvious and can be intermittent. Some SCLs heal spontaneously, and some remain blemishes, but when the SCL and lameness are persistent, further damage to the joint and limitations to an athletic career are likely. SCLs were initially described in the distal limb followed by the stifle, and the medial femoral condyle (MFC) is now considered the most common location. The aim of this review is to highlight the initial pathology and discuss the clinical and experimental information available on equine SCLs. SCL treatment has evolved from rest alone and has progressed to debridement, grafting, intralesional injection, and most recently, transcondylar screw and absorbable implant placement. Comparison of success rates between techniques is difficult due to variations in follow-up and outcome measures, and no single technique is best for all SCLs. Treatment appears to increase success by 15%-20% over rest alone, but the method chosen depends on many factors. This review emphasizes the need for further work to fully understand SCL formation and all aspects of trabecular bone healing to optimize surgical therapy and improve treatment success.
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Saito MK, de Oliveira BK, Macedo AP, Sorrentino Dos Santos C, Lopes RT, Yamanaka JS, Shimano AC. Cafeteria Diet Can Affect Bone Microarchitecture in Sedentary and Trained Male Rats. J Clin Densitom 2024; 27:101467. [PMID: 38306807 DOI: 10.1016/j.jocd.2024.101467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 12/31/2023] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
INTRODUCTION Poor eating habits and a sedentary lifestyle can impair health. Regular physical activity improves the quality of life and is essential for bone health. Therefore, the present study aimed to evaluate the effects of the cafeteria diet on bone quality of sedentary and exercised rats. METHODS Sixty young male Wistar rats were divided into six groups (n=10) according to diet composition and activity level, being: SD+CON, standard diet and control; SD+SED, standard diet and sedentary; SD+EX, standard diet and exercised; CD+CON, cafeteria diet and control; CD+SED, cafeteria diet and sedentary; CD+EX, cafeteria diet and exercised. The exercise protocol consisted of 10 ladder-climbing sessions/day, 5 days/week, and the sedentary rats were maintained in individual cages with limited mobility. Body mass and food intake were evaluated weekly. After 10 weeks, the animals were euthanized, and white adipose tissue was collected. The bone structure was evaluated by densitometry, mechanical tests, histomorphometric, and micro-computed tomography analyses. RESULTS The cafeteria diet increased adipose tissue (p<0.001), decreased bone mineral density (p=0.004), and impaired biomechanical properties (p<0.05) and histomorphometry parameters (p=0.044). The sedentarism decreased bone mineral density (p<0.001) and biomechanical properties (p<0.05), and the exercise did not improve bone properties. CONCLUSION In this experimental model, it was concluded that the cafeteria diet and a sedentary lifestyle negatively affect bone, and ladder-climbing exercise could not prevent the effects of the unhealthy diet.
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Affiliation(s)
- Marcio Koiti Saito
- Department of Orthopedics and Anesthesiology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
| | - Beatriz Kawano de Oliveira
- Department of Orthopedics and Anesthesiology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Ana Paula Macedo
- Department of Dental Materials and Prosthesis, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Ricardo Tadeu Lopes
- Nuclear Instrumentation Laboratory, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jéssica Suzuki Yamanaka
- Department of Orthopedics and Anesthesiology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Antonio Carlos Shimano
- Department of Orthopedics and Anesthesiology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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Li C, Chen G, Wang Y, Xu W, Hu M. Indirect co-culture of osteoblasts and endothelial cells in vitro based on a biomimetic 3D composite hydrogel scaffold to promote the proliferation and differentiation of osteoblasts. PLoS One 2024; 19:e0298689. [PMID: 38527040 PMCID: PMC10962808 DOI: 10.1371/journal.pone.0298689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 01/30/2024] [Indexed: 03/27/2024] Open
Abstract
The field of orthopedics has long struggled with the challenge of repairing and regenerating bone defects, which involves a complex process of osteogenesis requiring coordinated interactions among different types of cells. The crucial role of endothelial cells and osteoblasts in bone vascularization and osteogenesis underscores the importance of their intimate interaction. However, efforts to bioengineer bone tissue have been impeded by the difficulty in establishing proper angiogenesis and osteogenesis in tissue structures. This study presents a novel approach to bone tissue engineering, involving a three-dimensional composite hydrogel scaffold composed of sodium alginate microspheres encapsulated in type I collagen. Using this scaffold, a three-dimensional indirect co-culture system was established for osteoblasts and endothelial cells to evaluate the osteogenic differentiation potential of osteoblasts. Results demonstrate that the non-contact co-culture system of endothelial cells and osteoblasts constructed by the composite hydrogel scaffold loaded with microspheres holds promise for bone tissue engineering. The innovative concept of an indirect co-culture system presents exciting prospects for conducting intercellular communication studies and offers a valuable in vitro tissue platform to investigate tissue regeneration.
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Affiliation(s)
- Cheng Li
- Department of Orthopedics, Jiangsu Provincial People's Hospital, Nanjing, Jiangsu, China
| | - Guanghui Chen
- Department of Orthopedics, Dongguan Tungwah Hospital, Dongguan, Guangdong, China
| | - Yangyang Wang
- Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Wenwu Xu
- Department of Orthopedics, Dongguan Tungwah Hospital, Dongguan, Guangdong, China
| | - Minghui Hu
- Department of Orthopedics, DongGuan SongShan Lake Tungwah Hospital, Dongguan, Guangdong, China
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21
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Zhang Q, Wang X, Yang M, Xu D. Effects of void defects on the mechanical properties of biphasic calcium phosphate nanoparticles: A molecular dynamics investigation. J Mech Behav Biomed Mater 2024; 151:106385. [PMID: 38246094 DOI: 10.1016/j.jmbbm.2024.106385] [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: 11/29/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/23/2024]
Abstract
Porous biphasic calcium phosphate (BCP) ceramics are widely used in bone tissue engineering, and the mechanical properties of BCP implants must be reliable. However, the effects of pore structure (e.g., shape and size) on the mechanical properties are not well understood. In this study, we used molecular dynamics simulations to investigate the influence of pore shape and size on the mechanical behavior of BCP nanoparticles. BCP void models with cylindrical and cuboid pores ranging from 2 to 16 nm in diameter were constructed, and the elastic moduli were calculated. In addition, uniaxial tensile and compressive tests were performed on the models. We found that the pore size had a more significant impact on the mechanical properties of BCP than pore shape. Further, the elastic moduli decreased nonlinearly with increasing pore size. In addition, the tensile and compressive strength also decreased with the increase in pore size, but the ductility improved. Furthermore, deformation and fracture were more likely to occur near the pores and at the phase interfaces as a result of high atomic local strain in the calcium-deficient hydroxyapatite area. The results of this work reveal the effects of pore parameters on the mechanical properties of porous BCP at the nanometer level, which may aid the design of improved porous and multiphase CaP-based biomaterials for bone regeneration.
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Affiliation(s)
- Qiao Zhang
- MOE Key Laboratory of Green Chemistry and Technology, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Xin Wang
- MOE Key Laboratory of Green Chemistry and Technology, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Mingli Yang
- College of Biomedical Engineering, Sichuan University, Chengdu 610064, China; Research Center for Materials Genome Engineering, Sichuan University, Chengdu 610065, China.
| | - Dingguo Xu
- MOE Key Laboratory of Green Chemistry and Technology, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China; Research Center for Materials Genome Engineering, Sichuan University, Chengdu 610065, China.
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22
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Kajiwara Y, Honda Y, Takahashi A, Tanaka N, Koseki H, Sakamoto J, Okita M. Mechanical Stress Via Muscle Contractile Exercise Suppresses Atrophic Alterations of Bone-microstructure in Immobilized Rat Femurs. JOURNAL OF MUSCULOSKELETAL & NEURONAL INTERACTIONS 2024; 24:22-30. [PMID: 38427365 PMCID: PMC10910203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Accepted: 12/04/2023] [Indexed: 03/02/2024]
Abstract
OBJECTIVES This study aimed to determine whether mechanical stress via muscle contractile exercise with belt electrode-skeletal muscle electrical stimulation (B-SES) device effectively prevents immobilization-induced bone atrophy. METHODS Wistar rats were randomly divided into the control (CON) group, immobilization (IM) group (immobilized treatment only), HES and LES groups (immobilized treatment and high or low-intensity electrical muscular stimulation through B-SES device). Bilateral femurs were used for X-ray micro-CT and biomechanical tests. RESULTS The maximum load value was significantly lower in the IM and HES groups than in the CON group and significantly higher in the LES group than in the IM group. The maximum crushing load was significantly lower in the IM, HES, and LES groups than in the CON group, and significantly higher in the HES and LES groups than that in the IM group. In micro-CT, the mechanical stress by B-SES device did not affect degenerative microstructural changes in the cortical bone, but prevented those changes in the cancellous bone. CONCLUSIONS Applying mechanical stress via B-SES device suppressed the loss of cancellous bone density and degenerative microstructural changes caused by immobilization, which in turn suppressed the reduction of bone strength. From these findings, muscle contractile exercise may be effective in preventing immobilization-induced bone atrophy.
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Affiliation(s)
- Yasuhiro Kajiwara
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Rehabilitation, Nagasaki University Hospital, Nagasaki, Japan
| | - Yuichiro Honda
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Institute of Biomedical Sciences (Health Sciences), Nagasaki University, Nagasaki, Japan
| | - Ayumi Takahashi
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Natsumi Tanaka
- Department of Physical Therapy, School of Rehabilitation Sciences, Seirei Christopher University, Shizuoka, Japan
| | - Hironobu Koseki
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Institute of Biomedical Sciences (Health Sciences), Nagasaki University, Nagasaki, Japan
| | - Junya Sakamoto
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Institute of Biomedical Sciences (Health Sciences), Nagasaki University, Nagasaki, Japan
| | - Minoru Okita
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Institute of Biomedical Sciences (Health Sciences), Nagasaki University, Nagasaki, Japan
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23
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Wahbeh JM, Hookasian E, Lama J, Alam L, Park S, Sangiorgio SN, Ebramzadeh E. An additively manufactured model for preclinical testing of cervical devices. JOR Spine 2024; 7:e1285. [PMID: 38222806 PMCID: PMC10782067 DOI: 10.1002/jsp2.1285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 08/29/2023] [Accepted: 09/06/2023] [Indexed: 01/16/2024] Open
Abstract
Purpose Composite models have become commonplace for the assessment of fixation and stability of total joint replacements; however, there are no comparable models for the cervical spine to evaluate fixation. The goal of this study was to create the framework for a tunable non-homogeneous model of cervical vertebral body by identifying the relationships between strength, in-fill density, and lattice structure and creating a final architectural framework for specific strengths to be applied to the model. Methods The range of material properties for cervical spine were identified from literature. Using additive manufacturing software, rectangular prints with three lattice structures, gyroid, triangle, zig-zag, and a range of in-fill densities were 3D-printed. The compressive and shear strengths for all combinations were calculated in the axial and coronal planes. Eleven unique vertebral regions were selected to represent the distribution of density. Each bone density was converted to strength and subsequently correlated to the lattice structure and in-fill density with the desired material properties. Finally, a complete cervical vertebra model was 3D-printed to ensure sufficient print quality. Results Materials testing identified a relationship between in-fill densities and strength for all lattice structures. The axial compressive strength of the gyroid specimens ranged from 1.5 MPa at 10% infill to 31.3 MPa at 100% infill and the triangle structure ranged from 2.7 MPa at 10% infill to 58.4 MPa at 100% infill. Based on these results, a cervical vertebra model was created utilizing cervical cancellous strength values and the corresponding in-fill density and lattice structure combination. This model was then printed with 11 different in-fill densities ranging from 33% gyroid to 84% triangle to ensure successful integration of the non-homogeneous in-fill densities and lattice structures. Conclusions The findings from this study introduced a framework for using additive manufacturing to create a tunable, customizable biomimetic model of a cervical vertebra.
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Affiliation(s)
- Jenna M. Wahbeh
- The J. Vernon Luck, Sr., M.D. Orthopaedic Research CenterLuskin Orthopaedic Institute for ChildrenLos AngelesCaliforniaUSA
- Department of BioengineeringUCLALos AngelesCaliforniaUSA
| | - Erika Hookasian
- The J. Vernon Luck, Sr., M.D. Orthopaedic Research CenterLuskin Orthopaedic Institute for ChildrenLos AngelesCaliforniaUSA
- Department of BioengineeringUCLALos AngelesCaliforniaUSA
| | - John Lama
- The J. Vernon Luck, Sr., M.D. Orthopaedic Research CenterLuskin Orthopaedic Institute for ChildrenLos AngelesCaliforniaUSA
- Department of BioengineeringUCLALos AngelesCaliforniaUSA
| | - Labiba Alam
- The J. Vernon Luck, Sr., M.D. Orthopaedic Research CenterLuskin Orthopaedic Institute for ChildrenLos AngelesCaliforniaUSA
- Department of BioengineeringUCLALos AngelesCaliforniaUSA
| | - Sang‐Hyun Park
- The J. Vernon Luck, Sr., M.D. Orthopaedic Research CenterLuskin Orthopaedic Institute for ChildrenLos AngelesCaliforniaUSA
- Department of Orthopaedic SurgeryUCLALos AngelesCaliforniaUSA
| | - Sophia N. Sangiorgio
- The J. Vernon Luck, Sr., M.D. Orthopaedic Research CenterLuskin Orthopaedic Institute for ChildrenLos AngelesCaliforniaUSA
- Department of BioengineeringUCLALos AngelesCaliforniaUSA
- Department of Orthopaedic SurgeryUCLALos AngelesCaliforniaUSA
| | - Edward Ebramzadeh
- The J. Vernon Luck, Sr., M.D. Orthopaedic Research CenterLuskin Orthopaedic Institute for ChildrenLos AngelesCaliforniaUSA
- Department of Orthopaedic SurgeryUCLALos AngelesCaliforniaUSA
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24
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Anggoro D, Purba MS, Jiang F, Nishida N, Itoh H, Itamoto K, Nemoto Y, Nakaichi M, Sunahara H, Tani K. Finite element study on post-screw removal stress in toy poodle radius with different plate designs and screw arrangements. Open Vet J 2024; 14:885-894. [PMID: 38682140 PMCID: PMC11052620 DOI: 10.5455/ovj.2024.v14.i3.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 02/29/2024] [Indexed: 05/01/2024] Open
Abstract
Background The study employs finite element analysis to investigate stress distribution in the radius of toy poodles after screw removal. The examination focuses on the biomechanical implications of varied screw hole configurations using 1.5 and 2.0-mm locking compression plates (LCPs) with notched head T-Plates. Aim To provide a noninvasive approach to analyzing the immediate consequences of screw removal from the radius bone in toy poodles. Specifically, it explores the impact of varied plate designs and screw arrangements on stress distribution within the forelimb bones. Methods The study constructs a three-dimensional bone model of the toy poodle's forelimb based on computed tomography (CT) images. Simulations were designed to replicate jumping and landing from a 40 cm height, comparing stress distribution in the radius post-screw removal. Results The analysis reveals significant variations in stress distribution patterns between the two LCPs. The radius implanted with the 2.0-mm LCP displays a uniform stress distribution, contrasting with the 1.5-mm plates. Localized stress concentration is observed around the screw holes, while trabecular bone regions near the screw holes exhibit lower stress levels. Conclusion The study highlights the plate designs and screw configurations that affect bone stress in toy poodle forelimbs post-screw removal. The findings provide valuable insights for veterinarians, aiding informed decisions in veterinary orthopedic practices.
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Affiliation(s)
- Dito Anggoro
- Laboratory of Veterinary Surgery, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Japan
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, Gadjah Mada University, Indonesia
| | - Melpa Susanti Purba
- Laboratory of Veterinary Surgery, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Japan
| | - Fei Jiang
- Department of Mechanical Engineering, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Japan
| | - Norihiro Nishida
- Department of Orthopedic Surgery, Graduate School of Medicine, Yamaguchi University, Japan
| | - Harumichi Itoh
- Laboratory of Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, Japan
| | - Kazuhito Itamoto
- Laboratory of Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, Japan
| | - Yuki Nemoto
- Laboratory of Veterinary Radiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Japan
| | - Munekazu Nakaichi
- Laboratory of Veterinary Radiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Japan
| | - Hiroshi Sunahara
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Japan
| | - Kenji Tani
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Japan
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Lindgren N, Henningsen MJ, Jacobsen C, Villa C, Kleiven S, Li X. Prediction of skull fractures in blunt force head traumas using finite element head models. Biomech Model Mechanobiol 2024; 23:207-225. [PMID: 37656360 PMCID: PMC10902046 DOI: 10.1007/s10237-023-01768-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 08/17/2023] [Indexed: 09/02/2023]
Abstract
Traumatic head injuries remain a leading cause of death and disability worldwide. Although skull fractures are one of the most common head injuries, the fundamental mechanics of cranial bone and its impact tolerance are still uncertain. In the present study, a strain-rate-dependent material model for cranial bone has been proposed and implemented in subject-specific Finite Element (FE) head models in order to predict skull fractures in five real-world fall accidents. The subject-specific head models were developed following an established image-registration-based personalization pipeline. Head impact boundary conditions were derived from accident reconstructions using personalized human body models. The simulated fracture lines were compared to those visible in post-mortem CT scans of each subject. In result, the FE models did predict the actual occurrence and extent of skull fractures in all cases. In at least four out of five cases, predicted fracture patterns were comparable to ones from CT scans and autopsy reports. The tensile material model, which was tuned to represent rate-dependent tensile data of cortical skull bone from literature, was able to capture observed linear fractures in blunt indentation loading of a skullcap specimen. The FE model showed to be sensitive to modeling parameters, in particular to the constitutive parameters of the cortical tables. Nevertheless, this study provides a currently lacking strain-rate dependent material model of cranial bone that has the capacity to accurately predict linear fracture patterns. For the first time, a procedure to reconstruct occurrences of skull fractures using computational engineering techniques, capturing the all-in-all fracture initiation, propagation and final pattern, is presented.
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Affiliation(s)
- Natalia Lindgren
- Division of Neuronic Engineering, KTH Royal Institute of Technology, Stockholm, Sweden.
| | - Mikkel J Henningsen
- Department of Forensic Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Christina Jacobsen
- Department of Forensic Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Chiara Villa
- Department of Forensic Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Svein Kleiven
- Division of Neuronic Engineering, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Xiaogai Li
- Division of Neuronic Engineering, KTH Royal Institute of Technology, Stockholm, Sweden
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Yan Z, Hu Y, Li X, Liu Z, Wang P, Liu B, Tian Y, Zhuang Z. Data-Driven Based Characterization of Anisotropic Mechanical Properties for Cancellous Bone From Low-Resolution CT Images. IEEE Trans Biomed Eng 2024; 71:689-699. [PMID: 37713225 DOI: 10.1109/tbme.2023.3315846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
OBJECTIVES Exploring the anisotropic mechanical behavior of cancellous bone is crucial for in-vivo bone biomechanical analysis. However, it is challenging to characterize anisotropic mechanical behaviors under low-resolution (LR) clinical CT images due to a lack of microstructural information. The data-driven method proposed in this article accurately characterizes the anisotropic mechanical properties of cancellous bone from LR clinical CT images. METHODS The trabecular bone cubes of sheep are used to obtain a high-resolution (HR) micro-CT and an LR clinical CT image dataset. First, an auto-encoder model is trained using HR image data. Microstructural features are extracted by the encoder. A fast super-resolution (FSR) model is trained to map LR bone cubes to the features extracted from corresponding HR samples. The pretrained FSR model is used to convert LR clinical CT images to encoded microstructural features. The features are later used to predict target histomorphological parameters, anisotropic elastic tensors, and fabric tensors based on a fully connected neural network. RESULTS The data-driven model accurately predicts the elastic tensor and fabric tensor of trabecular bones with LR CT images with 0.6 mm/pixel spatial resolution. It was verified that LR clinical CT images could generate microstructural information using a generative deep-learning model and an up-sampling operation. SIGNIFICANCE This study proves that clinical medical images of cancellous bone can be used for analysis of complex mechanical properties using a data-driven method, which is useful for real-time bone defect diagnosis and personalized bone prosthesis design in clinical application.
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27
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Mayor J, Birgel V, Clausen JD, Aktas G, Sehmisch S, Einfeldt AK, Giannoudis V, Abdelaal AHK, Liodakis E. Lessons learned from biomechanical studies on cephalomedullary nails for the management of intertrochanteric fractures. A scoping review. Injury 2024; 55:111180. [PMID: 37972488 DOI: 10.1016/j.injury.2023.111180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/29/2023] [Accepted: 10/31/2023] [Indexed: 11/19/2023]
Abstract
INTRODUCTION The increasing socioeconomic need for optimal treatment of hip fractures in combination with the high diversity of available implants has raised numerous biomechanical questions. This study aims to provide a comprehensive overview of biomechanical research on the treatment of intertrochanteric fractures using cephalomedullary devices. METHODS Following the PRISMA-P guidelines, a systematic literature search was performed on 31.12.2022. The databases PubMed/MEDLINE and Web of Science were searched. Scientific papers published between 01.01.2000 - 31.12.2022 were included when they reported data on implant properties related to the biomechanical stability for intertrochanteric fractures. Data extraction was undertaken using a synthesis approach, gathering data on criteria of implants, sample size, fracture type, bone material, and study results. RESULTS The initial search identified a total of 1459 research papers, out of which forty-three papers were considered for final analysis. Due to the heterogeneous methods and parameters used in the included studies, meta-analysis was not feasible. A comprehensive assessment of implant characteristics and outcome parameters was conducted through biomechanical analysis. Various factors such as proximal and distal locking, nail diameter and length, fracture model, and bone material were thoroughly evaluated. CONCLUSION This scoping review highlights the need for standardization in biomechanical studies on intertrochanteric fractures to ensure reliable and comparable results. Strategies such as avoiding varus, maintaining a sufficient tip-apex-distance, cement augmentation, and optimizing lesser trochanteric osteosynthesis enhance construct stability. Synthetic alternatives may offer advantages over cadaveric bone. Further research and meta-analyses are required to establish standardized protocols and enhance reliability.
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Affiliation(s)
- Jorge Mayor
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg Str. 1, Hannover D-30625, Germany.
| | - Vera Birgel
- Hannover Medical School, Institute for Epidemiology, Social Medicine and Health Systems Research, Hannover, Germany
| | - Jan-Dierk Clausen
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg Str. 1, Hannover D-30625, Germany
| | - Gökmen Aktas
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg Str. 1, Hannover D-30625, Germany
| | - Stephan Sehmisch
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg Str. 1, Hannover D-30625, Germany
| | - Ann-Kathrin Einfeldt
- Laboratory for Biomechanics and Biomaterials, Department of Orthopedic Surgery, Hannover Medical School, Anna-von-Borries-Str. 1-7, Hannover 30625, Germany
| | - Vasilis Giannoudis
- Academic Department of Trauma & Orthopaedics, School of Medicine, University of Leeds, Leeds General Infirmary, Leeds, United Kingdom
| | - Ahmed H K Abdelaal
- Department of Orthopedic Surgery, Faculty of Medicine, Sohag University, Sohag 82524, Egypt
| | - Emmanouil Liodakis
- Department of Trauma Surgery, Hannover Medical School, Carl-Neuberg Str. 1, Hannover D-30625, Germany
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Hou X, Sitthisang S, Song B, Xu X, Jonhson W, Tan Y, Yodmuang S, He C. Entropically Toughened Robust Biodegradable Polymer Blends and Composites for Bone Tissue Engineering. ACS APPLIED MATERIALS & INTERFACES 2024; 16:2912-2920. [PMID: 38174974 DOI: 10.1021/acsami.3c14716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Biodegradable polymers and composites are promising candidates for biomedical implants in tissue engineering. However, state-of-the-art composite scaffolds suffer from a strength-toughness dilemma due to poor interfacial adhesion and filler dispersion. In this work, we propose a facile and scalable strategy to fabricate strong and tough biocomposite scaffolds through interfacial toughening. The immiscible biopolymer matrix is compatible by the direct incorporation of a third polymer. Densely entangled polymer chains lead to massive crazes and global shear yields under tension. Weak chemical interaction and high-shear melt processing create nanoscale dispersion of nanofillers within the matrix. The resultant ternary blends and composites exhibit an 11-fold increase in toughness without compromising stiffness and strength. At 70% porosity, three-dimensional (3D)-printed composite scaffolds demonstrate high compressive properties comparable to those of cancellous bones. In vitro cell culture on the scaffolds demonstrates not only good cell viability but also effective osteogenic differentiation of human mesenchymal stem cells. Our findings present a widely applicable strategy to develop high-performance biocomposite materials for tissue regeneration.
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Affiliation(s)
- Xunan Hou
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Sonthikan Sitthisang
- Research Affairs, Faculty of Medicine, Chulalongkorn University, 1873 Rama IV Road, Pathum Wan, Bangkok 10330, Thailand
| | - Bangjie Song
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Xin Xu
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Win Jonhson
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Yonghao Tan
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Supansa Yodmuang
- Research Affairs, Faculty of Medicine, Chulalongkorn University, 1873 Rama IV Road, Pathum Wan, Bangkok 10330, Thailand
- Center of Excellence in Biomaterial Engineering in Medical and Health, Chulalongkorn University, Bangkok 10330 Thailand
| | - Chaobin He
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
- Institute of Materials Research and Engineering, Agency for Science, Technology, and Research (A*STAR), 2 Fusionopolis Way, Innovis 138635, Singapore
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Malczewska-Lenczowska J, Surała O, Granda D, Szczepańska B, Czaplicki A, Kubacki R. The Relationship between Bone Health Parameters, Vitamin D and Iron Status, and Dietary Calcium Intake in Young Males. Nutrients 2024; 16:215. [PMID: 38257108 PMCID: PMC10818825 DOI: 10.3390/nu16020215] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/29/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
Vitamin D, calcium, and iron are micronutrients crucial for bone health. However, their effect has been studied primarily in the cortical bone, with vitamin D status being assessed mainly from the total 25(OH)D serum fraction. The study aimed to investigate the impact of vitamin D (total and free fraction) and iron status (i.e., serum ferritin or soluble transferrin receptor) and calcium intake (ADOS-Ca questionnaire) on lumbar cortical and trabecular bone. In a cohort of 113 male subjects (76 athletes, 37 non-athletes) aged 15-19, the lumbar spine status (Z-score, bone mineral apparent density (BMAD), and trabecular bone score (TBS)) was determined using dual-energy X-ray absorptiometry (DXA). Relationships between the examined micronutrients and bone health parameters were observed only in athletes. Free 25(OH)D was significantly (p < 0.001) correlated with Z-score and BMAD, while total 25(OH)D (p < 0.001) and iron status (ferritin, Fe stores; p < 0.01) correlated solely with BMAD. Free 25(OH)D and ferritin concentrations were the best determinants of bone status (R2 = 0.330; p < 0.001) and explained 25% and 7% of the BMAD variance, respectively. No relationships were found between the micronutrients and TBS. The results confirmed the positive influence of vitamin D and iron on cortical, but not trabecular, bone status solely in physically active subjects. In athletes, free 25(OH)D seems to be a superior indicator of bone health to a total 25(OH)D fraction.
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Affiliation(s)
- Jadwiga Malczewska-Lenczowska
- Department of Nutrition Physiology, Institute of Sport, National Research Institute, 01-982 Warsaw, Poland; (J.M.-L.); (D.G.); (B.S.)
| | - Olga Surała
- Department of Nutrition Physiology, Institute of Sport, National Research Institute, 01-982 Warsaw, Poland; (J.M.-L.); (D.G.); (B.S.)
| | - Dominika Granda
- Department of Nutrition Physiology, Institute of Sport, National Research Institute, 01-982 Warsaw, Poland; (J.M.-L.); (D.G.); (B.S.)
| | - Beata Szczepańska
- Department of Nutrition Physiology, Institute of Sport, National Research Institute, 01-982 Warsaw, Poland; (J.M.-L.); (D.G.); (B.S.)
| | - Adam Czaplicki
- Faculty of Physical Education and Health in Biała Podlaska, Józef Piłsudski University of Physical Education, 00-968 Warsaw, Poland;
| | - Rafał Kubacki
- Faculty of Physical Education & Sport, University School of Physical Education, 51-612 Wroclaw, Poland;
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30
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Mondal S, MacManus DB, Banche-Niclot F, Vitale-Brovarone C, Fiorilli S, McCarthy HO, Dunne N. Finite element analysis of vertebroplasty in the osteoporotic T11-L1 vertebral body: Effects of bone cement formulation. J Biomed Mater Res B Appl Biomater 2024; 112:e35359. [PMID: 38247244 DOI: 10.1002/jbm.b.35359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 08/24/2023] [Accepted: 11/27/2023] [Indexed: 01/23/2024]
Abstract
Vertebral compression fractures are one of the most severe clinical consequences of osteoporosis and the most common fragility fracture afflicting 570 and 1070 out of 100,000 men and women worldwide, respectively. Vertebroplasty (VP), a minimally invasive surgical procedure that involves the percutaneous injection of bone cement, is one of the most efficacious methods to stabilise osteoporotic vertebral compression fractures. However, postoperative fracture has been observed in up to 30% of patients following VP. Therefore, this study aims to investigate the effect of different injectable bone cement formulations on the stress distribution within the vertebrae and intervertebral discs due to VP and consequently recommend the optimal cement formulation. To achieve this, a 3D finite element (FE) model of the T11-L1 vertebral body was developed from computed tomography scan data of the spine. Osteoporotic bone was modeled by reducing the Young's modulus by 20% in the cortical bone and 74% in cancellous bone. The FE model was subjected to different physiological movements, such as extension, flexion, bending, and compression. The osteoporotic model caused a reduction in the average von Mises stress compared with the normal model in the T12 cancellous bone and an increment in the average von Mises stress value at the T12 cortical bone. The effects of VP using different formulations of a novel injectable bone cement were modeled by replacing a region of T12 cancellous bone with the materials. Due to the injection of the bone cement at the T12 vertebra, the average von Mises stresses on cancellous bone increased and slightly decreased on the cortical bone under all loading conditions. The novel class of bone cements investigated herein demonstrated an effective restoration of stress distribution to physiological levels within treated vertebrae, which could offer a potential superior alternative for VP surgery as their anti-osteoclastogenic properties could further enhance the appeal of their fracture treatment and may contribute to improved patient recovery and long-term well-being.
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Affiliation(s)
- Subrata Mondal
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
| | - David B MacManus
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
- BRAIN Lab, School of Mechanical & Materials Engineering, University College Dublin, Dublin 4, Ireland
| | | | | | - Sonia Fiorilli
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Helen O McCarthy
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7 BL, UK
| | - Nicholas Dunne
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
- Centre for Medical Engineering Research, Dublin City University, Dublin 9, Ireland
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland
- Advanced Manufacturing Research Centre (I-Form), School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Advanced Processing Technology Research Centre, Dublin City University, Dublin 9, Ireland
- Biodesign Europe, Dublin City University, Dublin 9, Ireland
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31
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Abar B, Vail E, Mathey E, Park E, Allen NB, Adams SB, Gall K. A bending model for assessing relative stiffness and strength of orthopaedic fixation constructs. Clin Biomech (Bristol, Avon) 2024; 111:106135. [PMID: 37948989 DOI: 10.1016/j.clinbiomech.2023.106135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/06/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND The purpose of this study is to develop a simple and reproducible bending model that is compatible with a wide range of orthopaedic fixation devices and 3D printed spacers. METHODS A robust 4-point bending model was constructed by securing sawbones blocks with different orthopaedic fixation device constructs. Stress strain curves derived from a fundamental mechanics model were used to assess the effect of bone density, type of hardware (staple vs intramedullary beam), the use of dynamic compression, orientation of staples (dorsal vs plantar), and the use of 3D printed titanium spacers. FINDINGS The high throughput 4-point bending model is simple enough that the methods can be easily repeated to assess a wide range of fixation methods, while complex enough to provide clinically relevant information. INTERPRETATIONS It is recommended that this model is used to assess a large initial set of fixation methods in direct and straightforward comparisons.
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Affiliation(s)
- Bijan Abar
- Duke University, Department of Mechanical Engineering and Material Sciences, USA; Duke University, Department of Orthopaedic Surgery, USA
| | - Elijah Vail
- Duke University, Department of Mechanical Engineering and Material Sciences, USA
| | - Elizabeth Mathey
- University of Colorado Denver, Department of Mechanical Engineering, USA
| | - Ella Park
- Duke University, Department of Mechanical Engineering and Material Sciences, USA
| | | | | | - Ken Gall
- Duke University, Department of Mechanical Engineering and Material Sciences, USA.
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32
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Liu S, Jia X, Hao J, Zhang D, Yang S, Dai B, Mao Y, Li Y. Tissue Engineering of JAK Inhibitor-Loaded Hierarchically Biomimetic Nanostructural Scaffold Targeting Cellular Senescence for Aged Bone Defect Repair and Bone Remolding. Adv Healthc Mater 2023; 12:e2301798. [PMID: 37667873 DOI: 10.1002/adhm.202301798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/26/2023] [Indexed: 09/06/2023]
Abstract
Cell senescence or apoptosis contributes to self-failure and functional loss in specialized cells, leading to incapacity of the body to repair specific damages. Senescent bone marrow mesenchymal stem cells (BMSCs) lose their proliferative abilities and secrete senescence-associated secretory phenotype (SASP), hindering their participation in bone defect repair. Hence, the effective suppression of cell senescence is crucial to restore the self-repair capacity of body to treat bone defects. Since the Janus kinase/signal transducer and activator of transcription (JAK/STAT) signaling pathway is associated with SASP secretion, herein, a new strategy is proposed to inhibit this pathway to suppress SASP secretion and enhance osteoblast activity based on a novel hierarchically biomimetic nanostructural electrospun scaffold with JAK inhibitors (JAKi, Ruxolitinib) loaded. As validated by in vitro and in vivo experiments, the JAKi loaded scaffold reduces SASP expression effectively and alleviates senescent cell burden, creating a pro-regeneration microenvironment that enhances osteoblast function and mineralization activity as well as rejuvenating the bone repair capacity. These findings offer insights into the regulatory role of cellular senescence in bone aging and provide a new and effective strategy to treat age-related bone defects by delivery of JAKi to locally aging bone defect sites.
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Affiliation(s)
- Shi Liu
- Lab of Low-Dimensional Materials Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Xinlin Jia
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Jina Hao
- Lab of Low-Dimensional Materials Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Dapeng Zhang
- Lab of Low-Dimensional Materials Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Shengchao Yang
- School of Chemistry and Chemical Engineering, State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, 832003, China
| | - Bin Dai
- School of Chemistry and Chemical Engineering, State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, 832003, China
| | - Yuanqing Mao
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yongsheng Li
- Lab of Low-Dimensional Materials Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai, 200237, China
- School of Chemistry and Chemical Engineering, State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, 832003, China
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33
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Marupudi S, Cao Q, Samala R, Petrick N. Characterization of mechanical stiffness using additive manufacturing and finite element analysis: potential tool for bone health assessment. 3D Print Med 2023; 9:32. [PMID: 37978094 PMCID: PMC10656885 DOI: 10.1186/s41205-023-00197-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Bone health and fracture risk are known to be correlated with stiffness. Both micro-finite element analysis (μFEA) and mechanical testing of additive manufactured phantoms are useful approaches for estimating mechanical properties of trabecular bone-like structures. However, it is unclear if measurements from the two approaches are consistent. The purpose of this work is to evaluate the agreement between stiffness measurements obtained from mechanical testing of additive manufactured trabecular bone phantoms and μFEA modeling. Agreement between the two methods would suggest 3D printing is a viable method for validation of μFEA modeling. METHODS A set of 20 lumbar vertebrae regions of interests were segmented and the corresponding trabecular bone phantoms were produced using selective laser sintering. The phantoms were mechanically tested in uniaxial compression to derive their stiffness values. The stiffness values were also derived from in silico simulation, where linear elastic μFEA was applied to simulate the same compression and boundary conditions. Bland-Altman analysis was used to evaluate agreement between the mechanical testing and μFEA simulation values. Additionally, we evaluated the fidelity of the 3D printed phantoms as well as the repeatability of the 3D printing and mechanical testing process. RESULTS We observed good agreement between the mechanically tested stiffness and μFEA stiffness, with R2 of 0.84 and normalized root mean square deviation of 8.1%. We demonstrate that the overall trabecular bone structures are printed in high fidelity (Dice score of 0.97 (95% CI, [0.96,0.98]) and that mechanical testing is repeatable (coefficient of variation less than 5% for stiffness values from testing of duplicated phantoms). However, we noticed some defects in the resin microstructure of the 3D printed phantoms, which may account for the discrepancy between the stiffness values from simulation and mechanical testing. CONCLUSION Overall, the level of agreement achieved between the mechanical stiffness and μFEA indicates that our μFEA methods may be acceptable for assessing bone mechanics of complex trabecular structures as part of an analysis of overall bone health.
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Affiliation(s)
- Sriharsha Marupudi
- Division of Imaging, Diagnostics, and Software Reliability, Office of Science and Engineering Labs, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Qian Cao
- Division of Imaging, Diagnostics, and Software Reliability, Office of Science and Engineering Labs, U.S. Food and Drug Administration, Silver Spring, MD, USA.
| | - Ravi Samala
- Division of Imaging, Diagnostics, and Software Reliability, Office of Science and Engineering Labs, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Nicholas Petrick
- Division of Imaging, Diagnostics, and Software Reliability, Office of Science and Engineering Labs, U.S. Food and Drug Administration, Silver Spring, MD, USA
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34
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Šromová V, Sobola D, Kaspar P. A Brief Review of Bone Cell Function and Importance. Cells 2023; 12:2576. [PMID: 37947654 PMCID: PMC10648520 DOI: 10.3390/cells12212576] [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: 08/31/2023] [Revised: 10/22/2023] [Accepted: 11/02/2023] [Indexed: 11/12/2023] Open
Abstract
This review focuses on understanding the macroscopic and microscopic characteristics of bone tissue and reviews current knowledge of its physiology. It explores how these features intricately collaborate to maintain the balance between osteoblast-mediated bone formation and osteoclast-mediated bone resorption, which plays a pivotal role in shaping not only our physical framework but also overall health. In this work, a comprehensive exploration of microscopic and macroscopic features of bone tissue is presented.
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Affiliation(s)
- Veronika Šromová
- Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, 601 90 Brno, Czech Republic
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, 601 90 Brno, Czech Republic;
| | - Dinara Sobola
- Academy of Sciences of the Czech Republic, Institute of Physics of Materials, Žižkova 22, 616 62 Brno, Czech Republic
| | - Pavel Kaspar
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, 601 90 Brno, Czech Republic;
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35
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Reiner E, Weston F, Pleshko N, Querido W. Application of Optical Photothermal Infrared (O-PTIR) Spectroscopy for Assessment of Bone Composition at the Submicron Scale. APPLIED SPECTROSCOPY 2023; 77:1311-1324. [PMID: 37774686 DOI: 10.1177/00037028231201427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
The molecular basis of bone structure and strength is mineralized collagen fibrils at the submicron scale (∼500 nm). Recent advances in optical photothermal infrared (O-PTIR) spectroscopy allow the investigation of bone composition with unprecedented submicron spatial resolution, which may provide new insights into factors contributing to underlying bone function. Here, we investigated (i) whether O-PTIR-derived spectral parameters correlated to standard attenuated total reflection (ATR) Fourier transform infrared spectroscopy spectral data and (ii) whether O-PTIR-derived spectral parameters, including heterogeneity of tissue, contribute to the prediction of proximal femoral bone stiffness. Analysis of serially demineralized bone powders showed a significant correlation (r = 0.96) between mineral content quantified using ATR and O-PTIR spectroscopy, indicating the validity of this technique in assessing bone mineralization. Using femoral neck sections, the principal component analysis showed that differences between O-PTIR and ATR spectra were primarily attributable to the phosphate ion (PO4) absorbance band, which was typically shifter toward higher wavenumbers in O-PTIR spectra. Additionally, significant correlations were found between hydrogen phosphate (HPO4) content (r = 0.75) and carbonate (CO3) content (r = 0.66) quantified using ATR and O-PTIR spectroscopy, strengthening the validity of this method to assess bone mineral composition. O-PTIR imaging of individual trabeculae at 500 nm pixel resolution illustrated differences in submicron composition in the femoral neck from bones with different stiffness. O-PTIR analysis showed a significant negative correlation (r = -0.71) between bone stiffness and mineral maturity, reflective of newly formed bone being an important contributor to bone function. Finally, partial least squares regression analysis showed that combining multiple O-PTIR parameters (HPO4 content and heterogeneity, collagen integrity, and CO3 content) could significantly predict proximal femoral stiffness (R2 = 0.74, error = 9.7%) more accurately than using ATR parameters. Additionally, we describe new findings in the effects of bone tissue orientation in the O-PTIR spectra. Overall, this study highlights a new application of O-PTIR spectroscopy that may provide new insights into molecular-level factors underlying bone mechanical competence.
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Affiliation(s)
- Emily Reiner
- Department of Bioengineering, Temple University, Philadelphia, PA, USA
| | - Frank Weston
- Photothermal Spectroscopy Corporation, Santa Barbara, CA, USA
| | - Nancy Pleshko
- Department of Bioengineering, Temple University, Philadelphia, PA, USA
| | - William Querido
- Department of Bioengineering, Temple University, Philadelphia, PA, USA
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36
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Zhao P, Yang P, Zhou W, Liu H, Jin X, Zhu X. Injectable Sealants Based on Silk Fibroin for Fast Hemostasis and Wound Repairing. Adv Healthc Mater 2023; 12:e2301310. [PMID: 37531236 DOI: 10.1002/adhm.202301310] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/17/2023] [Indexed: 08/04/2023]
Abstract
Uncontrollable blood loss poses fatality risks and most recently developed sealants still share common limitations on controversial components, degradability, mechanical strength or gelation time. Herein, series of injectable sealants based on silk fibroin (SF) is developed. Random coil/β-sheet conformation transition in SF is achieved by forming dendritic intermediates under induction of the structurally compatible and chemically complementary assembly peptide (Ac-KAEA-KAEA-KAEA-KAEA-NH2 , KA16 ). A ratio of 1:5 (KA-SF-15) shown an accelerating gelation process (≈12 s) and enhanced mechanical strength at physiological conditions. The interweaved nanofibers effectively impeded the bleeding within 30 s and no obvious adverse effects are observed. The supramolecular interactions and in vivo degradation benefit the inflammatory host cells infiltration and cytokines diffusion. Without any exogenous factors, the increased expression of VEGF and PDGF led to a positive feedback regulation on fibroblasts and vascular endothelial cell growth/proliferation and promoted the wound healing. These findings indicated the few assembly-peptide can accelerate fibroin gelation transition at a limited physiological condition, and the injectable amino acid-based sealants show obvious advantages on biocompatibility, degradability, rapid gelation and matched strength, with strong potential to act as next generation of biomedical materials.
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Affiliation(s)
- Peng Zhao
- State Key Laboratory of Metal Matrix Composites, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Peilang Yang
- Department of Burn, Ruijin Hospital Affliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| | - Wei Zhou
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Haoyang Liu
- Shanghai World Foreign Language Academy, 400 Baihua Street, Shanghai, 200233, P. R. China
| | - Xin Jin
- State Key Laboratory of Metal Matrix Composites, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Xinyuan Zhu
- State Key Laboratory of Metal Matrix Composites, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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Rojas-Rojas L, Tozzi G, Guillén-Girón T. A Comprehensive Mechanical Characterization of Subject-Specific 3D Printed Scaffolds Mimicking Trabecular Bone Architecture Biomechanics. Life (Basel) 2023; 13:2141. [PMID: 38004281 PMCID: PMC10672154 DOI: 10.3390/life13112141] [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: 09/27/2023] [Revised: 10/25/2023] [Accepted: 10/28/2023] [Indexed: 11/26/2023] Open
Abstract
This study presents a polymeric scaffold designed and manufactured to mimic the structure and mechanical compressive characteristics of trabecular bone. The morphological parameters and mechanical behavior of the scaffold were studied and compared with trabecular bone from bovine iliac crest. Its mechanical properties, such as modulus of elasticity and yield strength, were studied under a three-step monotonic compressive test. Results showed that the elastic modulus of the scaffold was 329 MPa, and the one for trabecular bone reached 336 MPa. A stepwise dynamic compressive test was used to assess the behavior of samples under various loading regimes. With microcomputed tomography (µCT), a three-dimensional reconstruction of the samples was obtained, and their porosity was estimated as 80% for the polymeric scaffold and 88% for trabecular bone. The full-field strain distribution of the samples was measured using in situ µCT mechanics and digital volume correlation (DVC). This provided information on the local microdeformation mechanism of the scaffolds when compared to that of the tissue. The comprehensive results illustrate the potential of the fabricated scaffolds as biomechanical templates for in vitro studies. Furthermore, there is potential for extending this structure and fabrication methodology to incorporate suitable biocompatible materials for both in vitro and in vivo clinical applications.
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Affiliation(s)
- Laura Rojas-Rojas
- Materials Science and Engineering School, Tecnológico de Costa Rica, Cartago 30109, Costa Rica;
| | - Gianluca Tozzi
- School of Engineering, University of Greenwich, Chatham ME4 4TB, UK;
- School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK
| | - Teodolito Guillén-Girón
- Materials Science and Engineering School, Tecnológico de Costa Rica, Cartago 30109, Costa Rica;
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38
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Szybiak W, Kujawa B, Miedziaszczyk M, Lacka K. Effect of Growth Hormone and Estrogen Replacement Therapy on Bone Mineral Density in Women with Turner Syndrome: A Meta-Analysis and Systematic Review. Pharmaceuticals (Basel) 2023; 16:1320. [PMID: 37765128 PMCID: PMC10536543 DOI: 10.3390/ph16091320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/27/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Osteoporosis is a serious implication of Turner syndrome (TS). Common methods for the treatment of TS are growth hormone (GHT) and estrogen replacement therapy (ERT). We examined the relationship between the treatment of TS and bone mineral density (BMD) of the lumbar spine. The purpose of our study was to show the currency of BMD states among patients with TS for treatment with GHT and ERT. We searched databases for studies published from inception to April 2023. The articles were related to TS, osteoporosis, ERT, GHT, BMD and treatment patients with TS. We applied the selection criteria: lumbar spine values at L1-L4; dual-energy X-ray absorptiometry (DXA); treatment which was applied: one group of articles: ERT and two group of articles: GHT; results performed as means ± SD. In total, 79 articles were analyzed, of which 20 studies were included and 5 were considered for meta-analysis. The total number of women in the articles selected was 71. Based on the results of the meta-analysis, the effect of ERT on BMD demonstrated a significant increase in BMD (the standardized mean difference in the random model was 0.593 g/cm2, 95% CI: 0.0705 to 1.116; p = 0.026), which showed that treatment with estrogen particularly increases bone mass during treatment, which contributes to reducing the risk of fractures. The effect of GHT on BMD demonstrated a non-significant decrease in BMD in patients with TS. The results for growth hormone show that this therapy does not improve bone density. However, our review emphasizes the beneficial effect of supplementing growth hormone (GH) on the clinical presentation of TS.
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Affiliation(s)
- Weronika Szybiak
- Students’ Scientific Section at the Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Science, 60-355 Poznan, Poland; (W.S.); (B.K.)
| | - Barbara Kujawa
- Students’ Scientific Section at the Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Science, 60-355 Poznan, Poland; (W.S.); (B.K.)
| | - Miłosz Miedziaszczyk
- Department of Nephrology, Transplantology and Internal Medicine, Poznan University of Medical Science, 60-355 Poznan, Poland;
| | - Katarzyna Lacka
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Science, 60-355 Poznan, Poland
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Jarrell L. Osteoporosis management in primary care. Nurse Pract 2023; 48:11-20. [PMID: 37643140 DOI: 10.1097/01.npr.0000000000000090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
ABSTRACT Osteoporosis is the most prevalent bone disease in the US. Once diagnosed, osteoporosis requires ongoing management; therefore, primary care providers are vital in managing both primary and secondary fracture prevention. Safe, efficacious, and economical medications are available, but osteoporosis remains underdiagnosed and undertreated. Bisphosphonates, selective estrogen receptor modulators (raloxifene), conjugated estrogens/bazedoxifene, estrogen therapy/hormone therapy, parathyroid hormone analogues, RANK ligand inhibitors (denosumab), sclerostin inhibitors (romosozumab), and calcitonin are all drugs or drug classes commonly used to treat osteoporosis that are discussed in this article.
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Affiliation(s)
- Lynda Jarrell
- Lynda Jarrell is a clinical assistant professor at University of Texas at Arlington in Fort Worth, Tex
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40
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Chen NF, Lin YY, Yao ZK, Tseng CC, Liu YW, Hung YP, Jean YH, Wen ZH. Oral Administration of Protease-Soluble Chicken Type II Collagen Ameliorates Anterior Cruciate Ligament Transection-Induced Osteoarthritis in Rats. Nutrients 2023; 15:3589. [PMID: 37630779 PMCID: PMC10459594 DOI: 10.3390/nu15163589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/08/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
This study investigated whether oral supplementation with protease-soluble chicken type II collagen (PSCC-II) mitigates the progression of anterior cruciate ligament transection (ACLT)-induced osteoarthritis (OA) in rats. Eight-week-old male Wistar rats were randomly assigned to the following groups: control, sham, ACLT, group A (ACLT + pepsin-soluble collagen type II collagen (C-II) with type I collagen), group B (ACLT + Amano M-soluble C-II with type I collagen), group C (ACLT + high-dose Amano M-soluble C-II with type I collagen), and group D (ACLT + unproteolyzed C-II). Various methods were employed to analyze the knee joint: nociceptive tests, microcomputed tomography, histopathology, and immunohistochemistry. Rats treated with any form of C-II had significant reductions in pain sensitivity and cartilage degradation. Groups that received PSCC-II treatment effectively mitigated the ACLT-induced effects of OA concerning cancellous bone volume, trabecular number, and trabecular separation compared with the ACLT alone group. Furthermore, PSCC-II and unproteolyzed C-II suppressed ACLT-induced effects, such as the downregulation of C-II and upregulation of matrix metalloproteinase-13, tumor necrosis factor-α, and interleukin-1β. These results indicate that PSCC-II treatment retains the protective effects of traditional undenatured C-II and provide superior benefits for OA management. These benefits encompass pain relief, anti-inflammatory effects, and the protection of cartilage and cancellous bone.
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Affiliation(s)
- Nan-Fu Chen
- Division of Neurosurgery, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan;
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
| | - Yen-You Lin
- Department of Sports Medicine, China Medical University, Taichung 40402, Taiwan;
| | - Zhi-Kang Yao
- Department of Orthopedics, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan;
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
| | - Chung-Chih Tseng
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
| | - Yu-Wei Liu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
| | - Ya-Ping Hung
- R&D Department, Taiyen Biotech Co., Ltd., Tainan 70263, Taiwan;
| | - Yen-Hsuan Jean
- Department of Orthopedic Surgery, Pingtung Christian Hospital, Pingtung 90059, Taiwan
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
- Institute of BioPharmaceutical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
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41
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Sadeghzadeh H, Dianat-Moghadam H, Del Bakhshayesh AR, Mohammadnejad D, Mehdipour A. A review on the effect of nanocomposite scaffolds reinforced with magnetic nanoparticles in osteogenesis and healing of bone injuries. Stem Cell Res Ther 2023; 14:194. [PMID: 37542279 PMCID: PMC10403948 DOI: 10.1186/s13287-023-03426-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 07/24/2023] [Indexed: 08/06/2023] Open
Abstract
Many problems related to disorders and defects of bone tissue caused by aging, diseases, and injuries have been solved by the multidisciplinary research field of regenerative medicine and tissue engineering. Numerous sciences, especially nanotechnology, along with tissue engineering, have greatly contributed to the repair and regeneration of tissues. Various studies have shown that the presence of magnetic nanoparticles (MNPs) in the structure of composite scaffolds increases their healing effect on bone defects. In addition, the induction of osteogenic differentiation of mesenchymal stem cells (MSCs) in the presence of these nanoparticles has been investigated and confirmed by various studies. Therefore, in the present article, the types of MNPs, their special properties, and their application in the healing of damaged bone tissue have been reviewed. Also, the molecular effects of MNPs on cell behavior, especially in osteogenesis, have been discussed. Finally, the present article includes the potential applications of MNP-containing nanocomposite scaffolds in bone lesions and injuries. In summary, this review article highlights nanocomposite scaffolds containing MNPs as a solution for treating bone defects in tissue engineering and regenerative medicine.
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Affiliation(s)
- Hadi Sadeghzadeh
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Science, Tabriz, Iran
| | - Hassan Dianat-Moghadam
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Azizeh Rahmani Del Bakhshayesh
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Daryush Mohammadnejad
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Anatomical Sciences, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahmad Mehdipour
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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Liu Z, Liu J, Li J, Li Y, Sun J, Deng Y, Zhou H. Discovery of CTSK+ Periosteal Stem Cells Mediating Bone Repair in Orbital Reconstruction. Invest Ophthalmol Vis Sci 2023; 64:30. [PMID: 37639249 PMCID: PMC10461643 DOI: 10.1167/iovs.64.11.30] [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: 12/29/2022] [Accepted: 07/28/2023] [Indexed: 08/29/2023] Open
Abstract
Purpose The purpose of this study was to explore the role of cathepsin K positive (CTSK+) periosteal stem cells (PSCs) in orbital bone repair and to clarify the source of endogenous stem cells for orbital bone self-repair. Methods Periosteum samples obtained by clinical orbital bone repair surgery were analyzed, after which immunofluorescence and immunohistochemical staining were used to detect the content of bone marrow-derived cells and CTSK+ PSCs in periosteum as well as the mobilization of PSCs. CTSK+ PSCs were characterized by flow cytometry. Transcriptome sequencing was used to compare the transcriptomic characteristics of CTSK+ PSCs and bone marrow mesenchymal stem cells (BMSCs). Results The orbital periosteum contained CTSK+CD200+ cell lineage, including CD200+CD105- PSCs and CD200+CD105+ progenitor cells. CTSK and osteocalcin (OCN) colocalized in the inner layer of the orbital periosteum, suggesting the osteogenic differentiation potential of CTSK+ PSCs. CTSK expression was much higher in periosteum after mobilization. Immunofluorescence showed low amounts of scattered CD31+ and CD45+ cells in the orbital periosteum. The stem cell characteristics of CTSK+ PSCs were verified by multidirectional differentiation. Flow cytometry found CD200+CD105- CTSK+ PSCs and CD200variantCD105+ progenitor cells. Transcriptome sequencing of CTSK+ PSCs and BMSCs found 3613 differential genes with significant differences. Gene Ontology (GO) analysis showed the differences between the two types of stem cells, revealing that PSCs were more suitable for intramembranous osteogenesis. Conclusions CTSK+ PSCs may be endogenous stem cells for orbital bone repair. They are mobilized after orbital fracture and have unique features suitable for intramembranous osteogenesis, completely different from BMSCs.
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Affiliation(s)
- Zeyang Liu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Jin Liu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Jipeng Li
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Yinwei Li
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Jing Sun
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Yuan Deng
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Huifang Zhou
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
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Arsentev MY, Sysoev EI, Makogon AI, Balabanov SV, Sychev MM, Hammouri MH, Moshnikov VA. High-Throughput Screening of 3D-Printed Architected Materials Inspired by Crystal Lattices: Procedure, Challenges, and Mechanical Properties. ACS OMEGA 2023; 8:24865-24874. [PMID: 37483245 PMCID: PMC10357429 DOI: 10.1021/acsomega.3c00874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 06/26/2023] [Indexed: 07/25/2023]
Abstract
The search for load-bearing, impact-resistant, and energy-absorbing cellular materials is of central interest in many fields including aerospace, automotive, civil, sports, packaging, and biomedical. In order to achieve the desired characteristic geometry and/or topology, a perspective approach may be used, such as utilization of atomic models as input data for 3D printing of macroscopic objects. In this paper, we suggest a new approach for the development of advanced cellular materials-crystallomorphic design based on selection of perspective crystal structures and modeling of their electron density distribution and utilization of isoelectronic surfaces as a generatrix for 3D-printed cellular materials. The ATLAS database, containing more than 10 million existing and predicted zeolites, was used as a source of data. Herein, we introduced a high-throughput screening of a data array of crystalline compounds. Several perspective designs were identified, implemented by 3D printing, and showed high characteristics. A linear correlation was found between the strength of the samples and the minimum angle and minimum bond length in the simplified crystal structures. A new cellular geometry with reinforcement struts and increased strength was discovered. This property was found by us independent of the other works, in which the cellular structures were developed by an explicit method. Thus, the developed approach holds perspective for the design of new cellular structures with increased characteristics and for the prediction of their properties.
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Affiliation(s)
- Maxim Yu. Arsentev
- Institute
of Silicate Chemistry, Russian Academy of Sciences, St. Petersburg 199034, Russia
| | - Evgeny I. Sysoev
- Department
of Micro- and Nanoelectronics, Saint Petersburg
Electrotechnical University “LETI”, Professor Popov Str. 5, St. Petersburg 197376, Russia
| | - Alexey I. Makogon
- Institute
of Silicate Chemistry, Russian Academy of Sciences, St. Petersburg 199034, Russia
| | - Sergey V. Balabanov
- Institute
of Silicate Chemistry, Russian Academy of Sciences, St. Petersburg 199034, Russia
| | - Maxim M. Sychev
- Institute
of Silicate Chemistry, Russian Academy of Sciences, St. Petersburg 199034, Russia
| | - Mahmoud H. Hammouri
- Department
of Physics, Natural and Applied Sciences, University of Wisconsin-Green Bay, Green Bay, Wisconsin 54311, United States
| | - Vyacheslav A. Moshnikov
- Department
of Micro- and Nanoelectronics, Saint Petersburg
Electrotechnical University “LETI”, Professor Popov Str. 5, St. Petersburg 197376, Russia
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Woodbury SM, Swanson WB, Mishina Y. Mechanobiology-informed biomaterial and tissue engineering strategies for influencing skeletal stem and progenitor cell fate. Front Physiol 2023; 14:1220555. [PMID: 37520820 PMCID: PMC10373313 DOI: 10.3389/fphys.2023.1220555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/05/2023] [Indexed: 08/01/2023] Open
Abstract
Skeletal stem and progenitor cells (SSPCs) are the multi-potent, self-renewing cell lineages that form the hematopoietic environment and adventitial structures of the skeletal tissues. Skeletal tissues are responsible for a diverse range of physiological functions because of the extensive differentiation potential of SSPCs. The differentiation fates of SSPCs are shaped by the physical properties of their surrounding microenvironment and the mechanical loading forces exerted on them within the skeletal system. In this context, the present review first highlights important biomolecules involved with the mechanobiology of how SSPCs sense and transduce these physical signals. The review then shifts focus towards how the static and dynamic physical properties of microenvironments direct the biological fates of SSPCs, specifically within biomaterial and tissue engineering systems. Biomaterial constructs possess designable, quantifiable physical properties that enable the growth of cells in controlled physical environments both in-vitro and in-vivo. The utilization of biomaterials in tissue engineering systems provides a valuable platform for controllably directing the fates of SSPCs with physical signals as a tool for mechanobiology investigations and as a template for guiding skeletal tissue regeneration. It is paramount to study this mechanobiology and account for these mechanics-mediated behaviors to develop next-generation tissue engineering therapies that synergistically combine physical and chemical signals to direct cell fate. Ultimately, taking advantage of the evolved mechanobiology of SSPCs with customizable biomaterial constructs presents a powerful method to predictably guide bone and skeletal organ regeneration.
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Affiliation(s)
- Seth M. Woodbury
- Yuji Mishina Laboratory, University of Michigan School of Dentistry, Department of Biologic and Materials Science & Prosthodontics, Ann Arbor, MI, United States
- University of Michigan College of Literature, Science, and Arts, Department of Chemistry, Ann Arbor, MI, United States
- University of Michigan College of Literature, Science, and Arts, Department of Physics, Ann Arbor, MI, United States
| | - W. Benton Swanson
- Yuji Mishina Laboratory, University of Michigan School of Dentistry, Department of Biologic and Materials Science & Prosthodontics, Ann Arbor, MI, United States
| | - Yuji Mishina
- Yuji Mishina Laboratory, University of Michigan School of Dentistry, Department of Biologic and Materials Science & Prosthodontics, Ann Arbor, MI, United States
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Goller SS, Rischewski JF, Liebig T, Ricke J, Siller S, Schmidt VF, Stahl R, Kulozik J, Baum T, Kirschke JS, Foreman SC, Gersing AS. Automated Opportunistic Trabecular Volumetric Bone Mineral Density Extraction Outperforms Manual Measurements for the Prediction of Vertebral Fractures in Routine CT. Diagnostics (Basel) 2023; 13:2119. [PMID: 37371014 DOI: 10.3390/diagnostics13122119] [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: 05/09/2023] [Revised: 06/16/2023] [Accepted: 06/18/2023] [Indexed: 06/29/2023] Open
Abstract
Opportunistic osteoporosis screening using multidetector CT-scans (MDCT) and convolutional neural network (CNN)-derived segmentations of the spine to generate volumetric bone mineral density (vBMD) bears the potential to improve incidental osteoporotic vertebral fracture (VF) prediction. However, the performance compared to the established manual opportunistic vBMD measures remains unclear. Hence, we investigated patients with a routine MDCT of the spine who had developed a new osteoporotic incidental VF and frequency matched to patients without incidental VFs as assessed on follow-up MDCT images after 1.5 years. Automated vBMD was generated using CNN-generated segmentation masks and asynchronous calibration. Additionally, manual vBMD was sampled by two radiologists. Automated vBMD measurements in patients with incidental VFs at 1.5-years follow-up (n = 53) were significantly lower compared to patients without incidental VFs (n = 104) (83.6 ± 29.4 mg/cm3 vs. 102.1 ± 27.7 mg/cm3, p < 0.001). This comparison was not significant for manually assessed vBMD (99.2 ± 37.6 mg/cm3 vs. 107.9 ± 33.9 mg/cm3, p = 0.30). When adjusting for age and sex, both automated and manual vBMD measurements were significantly associated with incidental VFs at 1.5-year follow-up, however, the associations were stronger for automated measurements (β = -0.32; 95% confidence interval (CI): -20.10, 4.35; p < 0.001) compared to manual measurements (β = -0.15; 95% CI: -11.16, 5.16; p < 0.03). In conclusion, automated opportunistic measurements are feasible and can be useful for bone mineral density assessment in clinical routine.
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Affiliation(s)
- Sophia S Goller
- Department of Radiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Jon F Rischewski
- Institute for Diagnostic and Interventional Neuroradiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Thomas Liebig
- Institute for Diagnostic and Interventional Neuroradiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Jens Ricke
- Department of Radiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Sebastian Siller
- Department of Neurosurgery, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Vanessa F Schmidt
- Department of Radiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Robert Stahl
- Institute for Diagnostic and Interventional Neuroradiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Julian Kulozik
- Institute of Micro Technology and Medical Device Technology (MIMED), Technical University of Munich, Boltzmannstr. 15, 85748 Garching, Germany
| | - Thomas Baum
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Jan S Kirschke
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Sarah C Foreman
- Department of Diagnostic and Interventional Radiology, Klinikum Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Alexandra S Gersing
- Institute for Diagnostic and Interventional Neuroradiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
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Kedziora S, Decker T, Museyibov E. Application of Functionally Graded Shell Lattice as Infill in Additive Manufacturing. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4401. [PMID: 37374591 DOI: 10.3390/ma16124401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/28/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023]
Abstract
The significance of lightweight designs has become increasingly paramount due to the growing demand for sustainability. Consequently, this study aims to demonstrate the potential of utilising a functionally graded lattice as an infill structure in designing an additively manufactured bicycle crank arm to achieve construction lightness. The authors seek to determine whether functionally graded lattice structures can be effectively implemented and explore their potential real-world applications. Two aspects determine their realisations: the lack of adequate design and analysis methods and the limitations of existing additive manufacturing technology. To this end, the authors employed a relatively simple crank arm and design exploration methods for structural analysis. This approach facilitated the efficient identification of the optimal solution. A prototype was subsequently developed using fused filament fabrication for metals, enabling the production of a crank arm with the optimised infill. As a result, the authors developed a lightweight and manufacturable crank arm showing a new design and analysis method implementable in similar additively manufactured elements. The percentage increase of a stiffness-to-mass ratio of 109.6% was achieved compared to the initial design. The findings suggest that the functionally graded infill based on the lattice shell improves structural lightness and can be manufactured.
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Affiliation(s)
- Slawomir Kedziora
- Faculty of Science, Technology and Medicine, University of Luxembourg, 6 rue Coudenhove-Kalergi, L-1359 Luxembourg, Luxembourg
| | - Thierry Decker
- Faculty of Science, Technology and Medicine, University of Luxembourg, 6 rue Coudenhove-Kalergi, L-1359 Luxembourg, Luxembourg
| | - Elvin Museyibov
- Faculty of Science, Technology and Medicine, University of Luxembourg, 6 rue Coudenhove-Kalergi, L-1359 Luxembourg, Luxembourg
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Lavigne A, Chicoine D, Esculier JF, Desmeules F, Frémont P, Dubois B. The Role of Footwear, Foot Orthosis, and Training-Related Strategies in the Prevention of Bone Stress Injuries: A Systematic Review and Meta-Analysis. INTERNATIONAL JOURNAL OF EXERCISE SCIENCE 2023; 16:721-743. [PMID: 37649463 PMCID: PMC10464778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Objective To evaluate the effectiveness of footwear, foot orthoses and training-related strategies to prevent lower extremity bone stress injury (BSI). Design Systematic review and meta-analysis. Data sources Four bibliographic databases (from inception until November 2021): Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE and CINAHL. Eligibility criteria Randomised controlled trials (RCTs) that assessed the risk of developing a BSI when using particular footwear, foot orthoses or training-related strategies such as muscle strengthening, stretching, and mechanical loading exercises. Results Eleven studies were included in this systematic review. When wearing foot orthoses, the risk ratio of developing a BSI on any lower extremity bone is 0.47 (95% CI 0.26 to 0.87; p = 0.02). When doing pre-exercise dynamic stretching, the risk ratio of suffering a tibial BSI is 1.06 (95% CI 0.67 to 1.68; p = 0.79). No meta-analyses could be performed for footwear or training-related strategies. The quality of evidence for all these results is low considering the high risk of bias in each study, the low number of studies and the low number of cases in each study. Conclusion This systematic review reveals the lack of high-quality studies in BSI prevention. Based on studies at high risk of bias, foot orthoses could potentially help prevent BSIs in the military setting. It is still unknown whether footwear and training-related strategies have any benefits. It is crucial to further investigate potential BSI prevention strategies in women and athletes. Research is also needed to assess the influence of running shoes and loading management on BSI incidence.
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Affiliation(s)
- Alexandre Lavigne
- Department of Physical Medicine and Rehabilitation, Faculty of Medicine, University of Montreal, Montreal, QC, CANADA
| | | | - Jean-François Esculier
- The Running Clinic, Lac Beauport, QC, CANADA
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, QC, CANADA
| | - François Desmeules
- School of Rehabilitation, Faculty of Medicine, University of Montreal, Montreal, QC, CANADA
- Centre de Recherche de l'Hôpital Maisonneuve-Rosemont, Montreal, QC, CANADA
| | - Pierre Frémont
- Département de Réadaptation, Faculté de Médecine, Université Laval, Québec, QC, CANADA
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Zhang H, Wu S, Chen W, Hu Y, Geng Z, Su J. Bone/cartilage targeted hydrogel: Strategies and applications. Bioact Mater 2023; 23:156-169. [PMID: 36406248 PMCID: PMC9661677 DOI: 10.1016/j.bioactmat.2022.10.028] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 11/13/2022] Open
Abstract
The skeletal system is responsible for weight-bearing, organ protection, and movement. Bone diseases caused by trauma, infection, and aging can seriously affect a patient's quality of life. Bone targeted biomaterials are suitable for the treatment of bone diseases. Biomaterials with bone-targeted properties can improve drug utilization and reduce side effects. A large number of bone-targeted micro-nano materials have been developed. However, only a few studies addressed bone-targeted hydrogel. The large size of hydrogel makes it difficult to achieve systematic targeting. However, local targeted hydrogel still has significant prospects. Molecules in bone/cartilage extracellular matrix and bone cells provide binding sites for bone-targeted hydrogel. Drug delivery systems featuring microgels with targeting properties is a key construction strategy for bone-targeted hydrogel. Besides, injectable hydrogel drug depot carrying bone-targeted drugs is another strategy. In this review, we summarize the bone-targeted hydrogel through application environment, construction strategies and disease applications. We hope this article will provide a reference for the development of bone-targeted hydrogels. We also hope this article could increase awareness of bone-targeted materials. Introducing the microenvironment and target molecules in different parts of long bones. Summarizing the construction strategy of micro/nanoparticle hydrogel with bone targeting properties. Summarizing the construction strategy of hydrogel based depot carrying bone-targeted drugs. Reporting the application and effect of bone targeting hydrogel in common bone diseases.
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49
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Chim LK, Williams IL, Bashor CJ, Mikos AG. Tumor-associated macrophages induce inflammation and drug resistance in a mechanically tunable engineered model of osteosarcoma. Biomaterials 2023; 296:122076. [PMID: 36931102 PMCID: PMC11132719 DOI: 10.1016/j.biomaterials.2023.122076] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 02/21/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023]
Abstract
The tumor microenvironment is a complex and dynamic ecosystem composed of various physical cues and biochemical signals that facilitate cancer progression, and tumor-associated macrophages are especially of interest as a treatable target due to their diverse pro-tumorigenic functions. Engineered three-dimensional models of tumors more effectively mimic the tumor microenvironment than monolayer cultures and can serve as a platform for investigating specific aspects of tumor biology within a controlled setting. To study the combinatorial effects of tumor-associated macrophages and microenvironment mechanical properties on osteosarcoma, we co-cultured human osteosarcoma cells with macrophages within biomaterials-based bone tumor niches with tunable stiffness. In the first 24 h of direct interaction between the two cell types, macrophages induced an inflammatory environment consisting of high concentrations of tumor necrosis factor alpha (TNFα) and interleukin (IL)-6 within moderately stiff scaffolds. Expression of Yes-associated protein (YAP), but not its homolog, transcriptional activator with PDZ-binding motif (TAZ), in osteosarcoma cells was significantly higher than in macrophages, and co-culture of the two cells slightly upregulated YAP in both cells, although not to a significant degree. Resistance to doxorubicin treatment in osteosarcoma cells was correlated with inflammation in the microenvironment, and signal transducer and activator of transcription 3 (STAT3) inhibition diminished the inflammation-related differences in drug resistance but ultimately did not improve the efficacy of doxorubicin. This work highlights that the biochemical cues conferred by tumor-associated macrophages in osteosarcoma are highly variable, and signals derived from the immune system should be considered in the development and testing of novel drugs for cancer.
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Affiliation(s)
- Letitia K Chim
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Isabelle L Williams
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Caleb J Bashor
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Antonios G Mikos
- Department of Bioengineering, Rice University, Houston, TX, USA; Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA.
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50
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Ho M, Dasari S, Visram A, Drake MT, Charlesworth MC, Johnson KL, Pujari GP, Jevremovic D, Kourelis T. An atlas of the bone marrow bone proteome in patients with dysproteinemias. Blood Cancer J 2023; 13:63. [PMID: 37105956 PMCID: PMC10140150 DOI: 10.1038/s41408-023-00840-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/12/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Multiple myeloma (MM) bone disease is a significant cause of morbidity but there is a paucity of data on the impact of malignant plasma cells on adjacent trabecular bone within the BM. Here, we characterize the proteome of trabecular bone tissue from BM biopsies of 56 patients with monoclonal gammopathy of undetermined significance (MGUS), smoldering (SMM), newly diagnosed (NDMM), relapsed MM (RMM), and normal controls. Proteins involved in extracellular matrix (ECM) formation and immunity pathways were decreased in SMM and active MM. Among the proteins most decreased were immunoglobulins, type IV collagen, and TIMP3, suggesting increased immunoparesis and decreased ECM remodelling within trabecular bone. Proteins most increased in SMM/MM were APP (enhances osteoclast activity), ENPP1 (enhances bone mineralization), and MZB1 (required for normal plasmablast differentiation). Pathway analyses showed that proteins involved in gamma -carboxylation, a pathway implicated in osteocalcin function, osteoblast differentiation, and normal hematopoiesis, were also overexpressed in SMM/MM. This study is the first comprehensive proteomic atlas of the BM bone proteome in dysproteinemias. We identify new key proteins and pathways for MM bone disease and potentially impaired hematopoiesis, and show for the first time that gamma -carboxylation pathways are increased in the bone tissue of SMM/MM.
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Affiliation(s)
- Matthew Ho
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Surendra Dasari
- Division of Biomedical Statistics and Informatics, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Alissa Visram
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Matthew T Drake
- Division of Endocrinology, Department of Medicine, Rochester, USA
| | | | | | | | - Dragan Jevremovic
- Department of Laboratory Medicine, Division of Hematopathology, Rochester, USA
| | - Taxiarchis Kourelis
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
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