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Séguin B, Liptak JM. Updates in Surgical Oncology. Vet Clin North Am Small Anim Pract 2024; 54:577-589. [PMID: 38238221 DOI: 10.1016/j.cvsm.2023.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2024]
Abstract
New knowledge and data can influence the treatment options of dogs and cats affected by neoplasms. Partial limb amputation with the use of a prosthesis is possible in dogs. Newer studies attempt to define better and understand the complications and limb function associated with this approach. Limb sparing is an alternative to amputation, and three-dimensional printing allows the manufacturing of personalized endoprostheses. Finally, the recommended approach for the excision of cutaneous mast cell tumors (MCTs) is with proportional margins. In dogs, grade shifting might have occurred when removing a recurrent MCT or soft tissue sarcoma.
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Affiliation(s)
- Bernard Séguin
- Central Victoria Veterinary Hospital, 760 Roderick Street, Victoria, British Columbia V8X 2R3, Canada.
| | - Julius M Liptak
- Capital City Specialty & Emergency Animal Hospital, 747 Silver Seven Road, Kanata, Ontario K2V 0A2, Canada
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2
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Kapoor K. 3D visualization and printing: An "Anatomical Engineering" trend revealing underlying morphology via innovation and reconstruction towards future of veterinary anatomy. Anat Sci Int 2024; 99:159-182. [PMID: 38236439 DOI: 10.1007/s12565-023-00755-1] [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: 03/29/2023] [Accepted: 12/14/2023] [Indexed: 01/19/2024]
Abstract
The amalgamation of veterinary anatomy, technology and innovation has led to development of latest technological advancement in the field of veterinary medicine, i.e., three-dimensional (3D) imaging and reconstruction. 3D visualization technique followed by 3D reconstruction has been proven to enhance non-destructive 3D visualization grossly or microscopically, e.g., skeletal muscle, smooth muscle, ligaments, cartilage, connective tissue, blood vessels, nerves, lymph nodes, and glands. The core aim of this manuscript is to document non-invasive 3D visualization methods being adopted currently in veterinary anatomy to reveal underlying morphology and to reconstruct them by 3D softwares followed by printing, its applications, current challenges, trends and future opportunities. 3D visualization methods such as MRI, CT scans and micro-CT scans are utilised in revealing volumetric data and underlying morphology at microscopic levels as well. This will pave a way to transform and re-invent the future of teaching in veterinary medicine, in clinical cases as well as in exploring wildlife anatomy. This review provides novel insights into 3D visualization and printing as it is the future of veterinary anatomy, thus making it spread to become the plethora of opportunities for whole veterinary science.
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Affiliation(s)
- Kritima Kapoor
- Department of Veterinary Anatomy, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, 141004, Punjab, India.
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Broda M, Yelle DJ, Serwańska-Leja K. Biodegradable Polymers in Veterinary Medicine-A Review. Molecules 2024; 29:883. [PMID: 38398635 PMCID: PMC10892962 DOI: 10.3390/molecules29040883] [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: 12/14/2023] [Revised: 02/03/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
During the past two decades, tremendous progress has been made in the development of biodegradable polymeric materials for various industrial applications, including human and veterinary medicine. They are promising alternatives to commonly used non-degradable polymers to combat the global plastic waste crisis. Among biodegradable polymers used, or potentially applicable to, veterinary medicine are natural polysaccharides, such as chitin, chitosan, and cellulose as well as various polyesters, including poly(ε-caprolactone), polylactic acid, poly(lactic-co-glycolic acid), and polyhydroxyalkanoates produced by bacteria. They can be used as implants, drug carriers, or biomaterials in tissue engineering and wound management. Their use in veterinary practice depends on their biocompatibility, inertness to living tissue, mechanical resistance, and sorption characteristics. They must be designed specifically to fit their purpose, whether it be: (1) facilitating new tissue growth and allowing for controlled interactions with living cells or cell-growth factors, (2) having mechanical properties that address functionality when applied as implants, or (3) having controlled degradability to deliver drugs to their targeted location when applied as drug-delivery vehicles. This paper aims to present recent developments in the research on biodegradable polymers in veterinary medicine and highlight the challenges and future perspectives in this area.
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Affiliation(s)
- Magdalena Broda
- Department of Wood Science and Thermal Techniques, Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 28, 60-637 Poznan, Poland
| | - Daniel J. Yelle
- Forest Biopolymers Science and Engineering, Forest Products Laboratory, USDA Forest Service, One Gifford Pinchot Drive, Madison, WI 53726, USA;
| | - Katarzyna Serwańska-Leja
- Department of Animal Anatomy, Faculty of Veterinary Medicine and Animal Sciences, Poznan University of Life Sciences, Wojska Polskiego 71c, 60-625 Poznan, Poland;
- Department of Sports Dietetics, Poznan University of Physical Education, 61-871 Poznan, Poland
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4
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Liang W, Zhou C, Zhang H, Bai J, Jiang B, Jiang C, Ming W, Zhang H, Long H, Huang X, Zhao J. Recent advances in 3D printing of biodegradable metals for orthopaedic applications. J Biol Eng 2023; 17:56. [PMID: 37644461 PMCID: PMC10466721 DOI: 10.1186/s13036-023-00371-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 07/31/2023] [Indexed: 08/31/2023] Open
Abstract
The use of biodegradable polymers for treating bone-related diseases has become a focal point in the field of biomedicine. Recent advancements in material technology have expanded the range of materials suitable for orthopaedic implants. Three-dimensional (3D) printing technology has become prevalent in healthcare, and while organ printing is still in its early stages and faces ethical and technical hurdles, 3D printing is capable of creating 3D structures that are supportive and controllable. The technique has shown promise in fields such as tissue engineering and regenerative medicine, and new innovations in cell and bio-printing and printing materials have expanded its possibilities. In clinical settings, 3D printing of biodegradable metals is mainly used in orthopedics and stomatology. 3D-printed patient-specific osteotomy instruments, orthopedic implants, and dental implants have been approved by the US FDA for clinical use. Metals are often used to provide support for hard tissue and prevent complications. Currently, 70-80% of clinically used implants are made from niobium, tantalum, nitinol, titanium alloys, cobalt-chromium alloys, and stainless steels. However, there has been increasing interest in biodegradable metals such as magnesium, calcium, zinc, and iron, with numerous recent findings. The advantages of 3D printing, such as low manufacturing costs, complex geometry capabilities, and short fabrication periods, have led to widespread adoption in academia and industry. 3D printing of metals with controllable structures represents a cutting-edge technology for developing metallic implants for biomedical applications. This review explores existing biomaterials used in 3D printing-based orthopedics as well as biodegradable metals and their applications in developing metallic medical implants and devices. The challenges and future directions of this technology are also discussed.
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Grants
- (LGF22H060023 to WQL) Public Technology Applied Research Projects of Zhejiang Province
- (2022KY433 to WQL, 2023KY1303 to HGL) Medical and Health Research Project of Zhejiang Province
- (2022KY433 to WQL, 2023KY1303 to HGL) Medical and Health Research Project of Zhejiang Province
- (2021FSYYZY45 to WQL) Research Fund Projects of The Affiliated Hospital of Zhejiang Chinese Medicine University
- (2022C31034 to CZ, 2023C31019 to HJZ) Science and Technology Project of Zhoushan
- (2022C31034 to CZ, 2023C31019 to HJZ) Science and Technology Project of Zhoushan
- (2022ZB380 to JYZ, 2023016295 to WYM, 2023007231 to CYJ ) Traditional Chinese Medicine Science and Technology Projects of Zhejiang Province
- (2022ZB380 to JYZ, 2023016295 to WYM, 2023007231 to CYJ ) Traditional Chinese Medicine Science and Technology Projects of Zhejiang Province
- (2022ZB380 to JYZ, 2023016295 to WYM, 2023007231 to CYJ ) Traditional Chinese Medicine Science and Technology Projects of Zhejiang Province
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Affiliation(s)
- Wenqing Liang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Chao Zhou
- Department of Orthopedics, Zhoushan Guanghua Hospital, Zhoushan, 316000 China
| | - Hongwei Zhang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Juqin Bai
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Bo Jiang
- Rehabilitation Department, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Zhoushan, 316000 China
| | - Chanyi Jiang
- Department of Orthopedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Zhoushan, 316000 Zhejiang Province P.R. China
| | - Wenyi Ming
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Hengjian Zhang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Hengguo Long
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Xiaogang Huang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
| | - Jiayi Zhao
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan, 316000 Zhejiang Province China
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Baumer V, Gunn E, Riegle V, Bailey C, Shonkwiler C, Prawel D. Robocasting of Ceramic Fischer-Koch S Scaffolds for Bone Tissue Engineering. J Funct Biomater 2023; 14:jfb14050251. [PMID: 37233361 DOI: 10.3390/jfb14050251] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
Triply Periodic Minimal Surfaces (TPMS) are promising structures for bone tissue engineering scaffolds due to their relatively high mechanical energy absorption, smoothly interconnected porous structure, scalable unit cell topology, and relatively high surface area per volume. Calcium phosphate-based materials, such as hydroxyapatite and tricalcium phosphate, are very popular scaffold biomaterials due to their biocompatibility, bioactivity, compositional similarities to bone mineral, non-immunogenicity, and tunable biodegradation. Their brittle nature can be partially mitigated by 3D printing them in TPMS topologies such as gyroids, which are widely studied for bone regeneration, as evidenced by their presence in popular 3D-printing slicers, modeling systems, and topology optimization tools. Although structural and flow simulations have predicted promising properties of other TPMS scaffolds, such as Fischer-Koch S (FKS), to the best of our knowledge, no one has explored these possibilities for bone regeneration in the laboratory. One reason for this is that fabrication of the FKS scaffolds, such as by 3D printing, is challenged by a lack of algorithms to model and slice this topology for use by low-cost biomaterial printers. This paper presents an open-source software algorithm that we developed to create 3D-printable FKS and gyroid scaffold cubes, with a framework that can accept any continuous differentiable implicit function. We also report on our successful 3D printing of hydroxyapatite FKS scaffolds using a low-cost method that combines robocasting with layer-wise photopolymerization. Dimensional accuracy, internal microstructure, and porosity characteristics are also presented, demonstrating promising potential for the 3D printing of TPMS ceramic scaffolds for bone regeneration.
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Affiliation(s)
- Vail Baumer
- Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523, USA
| | - Erin Gunn
- Department of Computer Science, Colorado State University, Fort Collins, CO 80523, USA
| | - Valerie Riegle
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO 80523, USA
| | - Claire Bailey
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO 80523, USA
| | - Clayton Shonkwiler
- Department of Mathematics, Colorado State University, Fort Collins, CO 80523, USA
| | - David Prawel
- Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523, USA
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO 80523, USA
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6
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Santos B, Gordo I, Mullins RA. Acute limb shortening and modified pantarsal arthrodesis for the treatment of a highly comminuted distal tibial articular fracture in a dog. J Vet Sci 2023; 24:e28. [PMID: 37012036 PMCID: PMC10071285 DOI: 10.4142/jvs.22257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/20/2022] [Accepted: 01/02/2023] [Indexed: 03/11/2023] Open
Abstract
A three-year-old female spayed Lurcher was referred for the treatment of a highly comminuted distal tibial articular fracture. Resection of the area of comminution with a transverse osteotomy of the tibial diaphysis and talar ridges was performed, followed by modified pantarsal arthrodesis and a calcaneotibial screw. The treatment resulted in 7 cm of tibial shortening, equating to a 28% reduction in the total tibial length. Radiographic union of the arthrodesis was successful. Fair use of the pelvic limb was documented long-term. Combined acute limb shortening and modified pantarsal arthrodesis resulted in an acceptable outcome and could be considered in cases of highly comminuted distal tibial fractures.
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Affiliation(s)
- Bruno Santos
- Section of Small Animal Clinical Studies, University College Dublin, Belfield, Dublin 4, Ireland
| | - Inês Gordo
- Section of Small Animal Clinical Studies, University College Dublin, Belfield, Dublin 4, Ireland
| | - Ronan A. Mullins
- Section of Small Animal Clinical Studies, University College Dublin, Belfield, Dublin 4, Ireland
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7
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Mayfield CK, Ayad M, Lechtholz-Zey E, Chen Y, Lieberman JR. 3D-Printing for Critical Sized Bone Defects: Current Concepts and Future Directions. Bioengineering (Basel) 2022; 9:680. [PMID: 36421080 PMCID: PMC9687148 DOI: 10.3390/bioengineering9110680] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/04/2022] [Accepted: 11/08/2022] [Indexed: 11/15/2023] Open
Abstract
The management and definitive treatment of segmental bone defects in the setting of acute trauma, fracture non-union, revision joint arthroplasty, and tumor surgery are challenging clinical problems with no consistently satisfactory solution. Orthopaedic surgeons are developing novel strategies to treat these problems, including three-dimensional (3D) printing combined with growth factors and/or cells. This article reviews the current strategies for management of segmental bone loss in orthopaedic surgery, including graft selection, bone graft substitutes, and operative techniques. Furthermore, we highlight 3D printing as a technology that may serve a major role in the management of segmental defects. The optimization of a 3D-printed scaffold design through printing technique, material selection, and scaffold geometry, as well as biologic additives to enhance bone regeneration and incorporation could change the treatment paradigm for these difficult bone repair problems.
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Affiliation(s)
- Cory K. Mayfield
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - Mina Ayad
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - Elizabeth Lechtholz-Zey
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - Yong Chen
- Department of Aerospace and Mechanical Engineering, Viterbi School of Engineering, University of Southern California, Los Angleles, CA 90089, USA
| | - Jay R. Lieberman
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
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8
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González-Sánchez M, Rivero-Antúnez P, Cano-Crespo R, Morales-Flórez V. Fabrication of Porous Alumina Structures by SPS and Carbon Sacrificial Template for Bone Regeneration. MATERIALS 2022; 15:ma15051754. [PMID: 35268984 PMCID: PMC8911001 DOI: 10.3390/ma15051754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/08/2022] [Accepted: 02/15/2022] [Indexed: 02/06/2023]
Abstract
In this work, a procedure for fabricating porous alumina with the use of a carbon sacrificial template has been tested in order to optimize the fabrication of porous structures mimicking the porosity and mechanical properties of the human cortical bone. Two different sources of sacrificial carbon were used and compared, and different sintering and calcination routes were considered. The porosity of the alumina structures studied by Hg porosimetry revealed that the amount of porosity and the size and shape of the pores are still below the required values, although some acicular pores were clearly observed by SEM. Moreover, measured mechanical properties (Young’s modulus) remained below that of the bone, suggesting the need for further consolidation treatments. In summary, these encouraging results drive the optimization of future fabrication routes.
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Affiliation(s)
- Manuela González-Sánchez
- Departamento Física de la Materia Condensada, Universidad de Sevilla, 41012 Sevilla, Spain; (M.G.-S.); (P.R.-A.); (R.C.-C.)
| | - Pedro Rivero-Antúnez
- Departamento Física de la Materia Condensada, Universidad de Sevilla, 41012 Sevilla, Spain; (M.G.-S.); (P.R.-A.); (R.C.-C.)
- Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC-Universidad de Sevilla, 41092 Sevilla, Spain
| | - Rafael Cano-Crespo
- Departamento Física de la Materia Condensada, Universidad de Sevilla, 41012 Sevilla, Spain; (M.G.-S.); (P.R.-A.); (R.C.-C.)
| | - Víctor Morales-Flórez
- Departamento Física de la Materia Condensada, Universidad de Sevilla, 41012 Sevilla, Spain; (M.G.-S.); (P.R.-A.); (R.C.-C.)
- Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC-Universidad de Sevilla, 41092 Sevilla, Spain
- Correspondence:
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Memarian P, Pishavar E, Zanotti F, Trentini M, Camponogara F, Soliani E, Gargiulo P, Isola M, Zavan B. Active Materials for 3D Printing in Small Animals: Current Modalities and Future Directions for Orthopedic Applications. Int J Mol Sci 2022; 23:ijms23031045. [PMID: 35162968 PMCID: PMC8834768 DOI: 10.3390/ijms23031045] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/10/2022] [Accepted: 01/10/2022] [Indexed: 12/15/2022] Open
Abstract
The successful clinical application of bone tissue engineering requires customized implants based on the receiver's bone anatomy and defect characteristics. Three-dimensional (3D) printing in small animal orthopedics has recently emerged as a valuable approach in fabricating individualized implants for receiver-specific needs. In veterinary medicine, because of the wide range of dimensions and anatomical variances, receiver-specific diagnosis and therapy are even more critical. The ability to generate 3D anatomical models and customize orthopedic instruments, implants, and scaffolds are advantages of 3D printing in small animal orthopedics. Furthermore, this technology provides veterinary medicine with a powerful tool that improves performance, precision, and cost-effectiveness. Nonetheless, the individualized 3D-printed implants have benefited several complex orthopedic procedures in small animals, including joint replacement surgeries, critical size bone defects, tibial tuberosity advancement, patellar groove replacement, limb-sparing surgeries, and other complex orthopedic procedures. The main purpose of this review is to discuss the application of 3D printing in small animal orthopedics based on already published papers as well as the techniques and materials used to fabricate 3D-printed objects. Finally, the advantages, current limitations, and future directions of 3D printing in small animal orthopedics have been addressed.
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Affiliation(s)
- Parastoo Memarian
- Department of Animal Medicine, Productions and Health, University of Padova, 35020 Padova, Italy; (P.M.); (M.I.)
| | - Elham Pishavar
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.P.); (F.Z.); (M.T.); (F.C.)
| | - Federica Zanotti
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.P.); (F.Z.); (M.T.); (F.C.)
| | - Martina Trentini
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.P.); (F.Z.); (M.T.); (F.C.)
| | - Francesca Camponogara
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.P.); (F.Z.); (M.T.); (F.C.)
| | - Elisa Soliani
- Engineering Department, King’s College, London WC2R 2LS, UK;
| | - Paolo Gargiulo
- Institute for Biomedical and Neural Engineering, Reykjavík University, 101 Reykjavík, Iceland;
- Department of Science, Landspítali, 101 Reykjavík, Iceland
| | - Maurizio Isola
- Department of Animal Medicine, Productions and Health, University of Padova, 35020 Padova, Italy; (P.M.); (M.I.)
| | - Barbara Zavan
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.P.); (F.Z.); (M.T.); (F.C.)
- Correspondence:
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10
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Brozovich AA, Lenna S, Paradiso F, Serpelloni S, McCulloch P, Weiner B, Yustein JT, Taraballi F. Osteogenesis in the presence of chemotherapy: A biomimetic approach. J Tissue Eng 2022; 13:20417314221138945. [PMID: 36451687 PMCID: PMC9703557 DOI: 10.1177/20417314221138945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 10/29/2022] [Indexed: 07/13/2024] Open
Abstract
Osteosarcoma (OS) is the most common bone tumor in pediatrics. After resection, allografts or metal endoprostheses reconstruct bone voids, and systemic chemotherapy is used to prevent recurrence. This urges the development of novel treatment options for the regeneration of bone after excision. We utilized a previously developed biomimetic, biodegradable magnesium-doped hydroxyapatite/type I collagen composite material (MHA/Coll) to promote bone regeneration in the presence of chemotherapy. We also performed experiments to determine if human mesenchymal stem cells (hMSCs) seeded on MHA/Coll scaffold migrate less toward OS cells, suggesting that hMSCs will not contribute to tumor growth and therefore the potential of oncologic safety in vitro. Also, hMSCs seeded on MHA/Coll had increased expression of osteogenic genes (BGLAP, SPP1, ALP) compared to hMSCs in the 2D condition, even when exposed to chemotherapeutics. This is the first study to demonstrate that a highly osteogenic scaffold can potentially be oncologically safe because hMSCs on MHA/Coll tend to differentiate and lose the ability to migrate toward tumor cells. Therefore, hMSCs on MHA/Coll could potentially be utilized for bone regeneration after OS excision.
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Affiliation(s)
- Ava A Brozovich
- Texas A&M College of Medicine, Bryan, TX, USA
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston, TX, USA
- Houston Methodist Orthopedics & Sports Medicine, Houston Methodist Hospital, Houston, TX, USA
| | - Stefania Lenna
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston, TX, USA
- Houston Methodist Orthopedics & Sports Medicine, Houston Methodist Hospital, Houston, TX, USA
| | - Francesca Paradiso
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston, TX, USA
- Houston Methodist Orthopedics & Sports Medicine, Houston Methodist Hospital, Houston, TX, USA
- Reproductive Biology and Gynaecological Oncology Group, Swansea University Medical School, Singleton Park, Swansea, UK
| | - Stefano Serpelloni
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston, TX, USA
- Houston Methodist Orthopedics & Sports Medicine, Houston Methodist Hospital, Houston, TX, USA
- Politecnico di Milano, Department of Electronics, Informatics, and Bioengineering (DEIB), Milan, Italy
| | - Patrick McCulloch
- Houston Methodist Orthopedics & Sports Medicine, Houston Methodist Hospital, Houston, TX, USA
| | - Bradley Weiner
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston, TX, USA
- Houston Methodist Orthopedics & Sports Medicine, Houston Methodist Hospital, Houston, TX, USA
| | - Jason T Yustein
- Texas Children’s Cancer and Hematology Center and The Faris D. Virani Ewing Sarcoma Center, Baylor College of Medicine, Houston, TX, USA
| | - Francesca Taraballi
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston, TX, USA
- Houston Methodist Orthopedics & Sports Medicine, Houston Methodist Hospital, Houston, TX, USA
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11
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Lee MI, Kwak HH, Kim JH, Shin HS, Woo HM, Kang BJ. Surgical Ectrodactyly Repair Using Limb-lengthening and Bone Tissue Engineering Techniques in a Toy Dog Breed. In Vivo 2020; 34:815-824. [PMID: 32111789 PMCID: PMC7157858 DOI: 10.21873/invivo.11843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/05/2019] [Accepted: 11/12/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND/AIM Bone tissue engineering is an emerging field of regenerative medicine that holds promise for the restoration of bones affected by trauma, neoplastic diseases, and congenital deformity. During the past decade, bone tissue engineering has evolved from the use of biomaterials that can only replace small areas of damaged bone, to the use of scaffolds in which grafts can be seeded before implantation. This case report proposes an alternative option for a veterinary patient suffering from ectrodactyly, which is one of several congenital deformities in dogs. A 2-month-old male toy poodle dog with ectrodactyly was treated using several stages of surgery involving pancarpal arthrodesis, limb lengthening, and bone tissue engineering techniques. RESULTS AND CONCLUSION Over a period of 2 years, the operated limb gained almost the same function as the contralateral limb. Bone tissue engineering techniques can be used for the treatment of congenital deformities in dogs.
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Affiliation(s)
- Mun-Ik Lee
- Department of Veterinary Surgery, College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Ho-Hyun Kwak
- Department of Veterinary Surgery, College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Jun-Hyung Kim
- Department of Veterinary Surgery, College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Hyeok-Soo Shin
- Department of Veterinary Surgery, College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Heung-Myong Woo
- Department of Veterinary Surgery, College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Byung-Jae Kang
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea
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Vidal L, Kampleitner C, Brennan MÁ, Hoornaert A, Layrolle P. Reconstruction of Large Skeletal Defects: Current Clinical Therapeutic Strategies and Future Directions Using 3D Printing. Front Bioeng Biotechnol 2020; 8:61. [PMID: 32117940 PMCID: PMC7029716 DOI: 10.3389/fbioe.2020.00061] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 01/24/2020] [Indexed: 12/25/2022] Open
Abstract
The healing of bone fractures is a well-orchestrated physiological process involving multiple cell types and signaling molecules interacting at the fracture site to replace and repair bone tissue without scar formation. However, when the lesion is too large, normal healing is compromised. These so-called non-union bone fractures, mostly arising due to trauma, tumor resection or disease, represent a major therapeutic challenge for orthopedic and reconstructive surgeons. In this review, we firstly present the current commonly employed surgical strategies comprising auto-, allo-, and xenograft transplantations, as well as synthetic biomaterials. Further to this, we discuss the multiple factors influencing the effectiveness of the reconstructive therapy. One essential parameter is adequate vascularization that ensures the vitality of the bone grafts thereby supporting the regeneration process, however deficient vascularization presents a frequently encountered problem in current management strategies. To address this challenge, vascularized bone grafts, including free or pedicled fibula flaps, or in situ approaches using the Masquelet induced membrane, or the patient’s body as a bioreactor, comprise feasible alternatives. Finally, we highlight future directions and novel strategies such as 3D printing and bioprinting which could overcome some of the current challenges in the field of bone defect reconstruction, with the benefit of fabricating personalized and vascularized scaffolds.
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Affiliation(s)
- Luciano Vidal
- INSERM, UMR 1238, PHY-OS, Bone Sarcomas and Remodeling of Calcified Tissues, Faculty of Medicine, University of Nantes, Nantes, France
| | - Carina Kampleitner
- Department of Pharmacology and Toxicology, University of Vienna, Vienna, Austria
| | - Meadhbh Á Brennan
- INSERM, UMR 1238, PHY-OS, Bone Sarcomas and Remodeling of Calcified Tissues, Faculty of Medicine, University of Nantes, Nantes, France.,Harvard School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States
| | - Alain Hoornaert
- INSERM, UMR 1238, PHY-OS, Bone Sarcomas and Remodeling of Calcified Tissues, Faculty of Medicine, University of Nantes, Nantes, France.,CHU Nantes, Department of Implantology, Faculty of Dental Surgery, University of Nantes, Nantes, France
| | - Pierre Layrolle
- INSERM, UMR 1238, PHY-OS, Bone Sarcomas and Remodeling of Calcified Tissues, Faculty of Medicine, University of Nantes, Nantes, France
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The Potential Selective Cytotoxicity of Poly (L- Lactic Acid)-Based Scaffolds Functionalized with Nanohydroxyapatite and Europium (III) Ions toward Osteosarcoma Cells. MATERIALS 2019; 12:ma12223779. [PMID: 31752084 PMCID: PMC6888250 DOI: 10.3390/ma12223779] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 01/08/2023]
Abstract
Osteosarcoma (OSA) is malignant bone tumor, occurring in children and adults, characterized by poor prognosis. Despite advances in chemotherapy and surgical techniques, the survival of osteosarcoma patients is not improving significantly. Currently, great efforts are taken to identify novel selective strategies, distinguishing between cancer and normal cells. This includes development of biomimetic scaffolds with anticancer properties that can simultaneously support and modulate proper regeneration of bone tissue. In this study cytotoxicity of scaffolds composed from poly (L-lactic acid) functionalized with nanohydroxyapatite (nHAp) and doped with europium (III) ions-10 wt % 3 mol % Eu3+: nHAp@PLLA was tested using human osteosarcoma cells: U-2 OS, Saos-2 and MG-63. Human adipose tissue-derived stromal cells (HuASCs) were used as non-transformed cells to determine the selective cytotoxicity of the carrier. Analysis included evaluation of cells morphology (confocal/scanning electron microscopy (SEM)), metabolic activity and apoptosis profile in cultures on the scaffolds. Results obtained indicated on high cytotoxicity of scaffolds toward all OSA cell lines, associated with a decrease of cells' viability, deterioration of metabolic activity and activation of apoptotic factors determined at mRNA and miRNA levels. Simultaneously, the biomaterials did not affect HuASCs' viability and proliferation rate. Obtained scaffolds showed a bioimaging function, due to functionalization with luminescent europium ions, and thus may find application in theranostics treatment of OSA.
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