Bibliographies thématiques / Custom orthopedic implants

Littérature scientifique sur le sujet « Custom orthopedic implants »

Auteur : Grafiati
Publié le 10 mars 2023

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Articles de revues sur le sujet "Custom orthopedic implants"

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Okazaki, Yoshimitsu. « Development trends of custom-made orthopedic implants ». Journal of Artificial Organs 15, no 1 (11 août 2011) : 20–25. http://dx.doi.org/10.1007/s10047-011-0584-6.

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Ertürk, Cemil, Simel Ayyıldız et Cevdet Erdöl. « Orthopedics and 3D technology in Turkey : A preliminary report ». Joint Diseases and Related Surgery 32, no 2 (11 juin 2021) : 279–89. http://dx.doi.org/10.52312/jdrs.2021.20.

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Objectives: In this study, we present the use of case specific three- dimensional (3D) printed plastic models and custom-made acetabular implants in orthopedic surgery. Materials and methods: Between March 2018 and September 2020, surgeries were simulated using plastic models manufactured by 3D printers on the two patients with pilon fractures. Also, custom-made acetabular implants were used on two patients with an acetabular bone defect for the revision of total hip arthroplasty (THA). Results: More comfortable surgeries were experienced in pilon fractures using preoperative plastic models. Similarly, during the follow-up period, the patients that applied custom-made acetabular implants showed a fixed and well-positioning in radiographic examination. These patients did not experience any surgical complications and achieved an excellent recovery. Conclusion: Preoperative surgical simulation with 3D printed models can increase the comfort of fracture surgeries. Also, custom-made 3D printed acetabular implants can perform an important task in patients treated with revision THA surgery due to severe acetabular defects.
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Sahal, Mohammed, Mu Tao Chen, Shruti Sharma, Sidharth Sukumaran Nair et Vaishakh Gopalakrishnan Nair. « 3DP materials and methods for orthopedic, dental and maxillofacial implants : a brief comparative report ». Journal of 3D Printing in Medicine 3, no 3 (août 2019) : 127–34. http://dx.doi.org/10.2217/3dp-2018-0020.

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The current approach of modifying standardized prosthetics for orthopedic, dental and maxillofacial implants made from conventional manufacturing techniques have been found inconvenient to customize for specific cases as the complex geometry of the skeletal tissue varies appreciably from patient to patient [ 1 , 2 ]. These standard procedures justly demand patient-specific, complex-shaped, custom-made implants be reliably delivered in minimal time. In this specific regard, 3DP implants are extensively researched [ 3 ]. A significant number of research outcomes sufficiently emphasize the desirable superior shape conformity and the short delivery time provided by the custom-made 3DP implants compared over conventional implants. These potential benefits facilitated by the novel 3DP technology can be adequately explained by the inherent ability of various modern 3DP disciplines to manufacture complex shaped implants by efficiently converting any patient-specific x-ray or CT scans into STL files. In this academic paper, we comparatively review the methods and materials utilized for specific 3DP implants.
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Abdelaal, Osama, Saied Darwish, Hassan El-Hofy et Yoshio Saito. « Patient-specific design process and evaluation of a hip prosthesis femoral stem ». International Journal of Artificial Organs 42, no 6 (11 décembre 2018) : 271–90. http://dx.doi.org/10.1177/0391398818815479.

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Introduction: There are several commercially available hip implant systems. However, for some cases, custom implant designed based on patient-specific anatomy can offer the patient the best available implant solution. Currently, there is a growing trend toward personalization of medical implants involving additive manufacturing into orthopedic medical implants’ manufacturing. Methods: This article introduces a systematic design methodology of femoral stem prosthesis based on patient’s computer tomography data. Finite element analysis is used to evaluate and compare the micromotion and stress distribution of the customized femoral component and a conventional stem. Results: The proposed customized femoral stem achieved close geometrical fit and fill between femoral canal and stem surfaces. The customized stem demonstrated lower micromotion (peak: 21 μm) than conventional stem (peak: 34 μm). Stress results indicate up to 89% increase in load transfer by conventional stem than custom stem because the higher stiffness of patient-specific femoral stem proximally increases the custom stem shielding in Gruen’s zone 7. Moreover, patient-specific femoral stem transfers the load widely in metaphyseal region. Conclusion: The customized femoral stem presented satisfactory results related to primary stability, but compromising proximo-medial load transfer due to increased stem cross-sectional area increased stem stiffness.
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Bechtold, Joan E. « Application of Computer Graphics in the Design of Custom Orthopedic Implants ». Orthopedic Clinics of North America 17, no 4 (octobre 1986) : 605–12. http://dx.doi.org/10.1016/s0030-5898(20)32307-5.

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Park, Jong-Woong, Hyun-Guy Kang, June-Hyuk Kim et Han-Soo Kim. « 3D-Printed Connector for Revision Limb Salvage Surgery in Long Bones Previously Using Customized Implants ». Metals 11, no 5 (26 avril 2021) : 707. http://dx.doi.org/10.3390/met11050707.

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In orthopedic oncology, revisional surgery due to mechanical failure or local recurrence is not uncommon following limb salvage surgery using an endoprosthesis. However, due to the lack of clinical experience in limb salvage surgery using 3D-printed custom-made implants, there have been no reports of revision limb salvage surgery using a 3D-printed implant. Herein, we present two cases of representative revision limb salvage surgeries that utilized another 3D-printed custom-made implant while retaining the previous 3D-printed custom-made implant. A 3D-printed connector implant was used to connect the previous 3D-printed implant to the proximal ulna of a 40-year-old man and to the femur of a 69-year-old woman. The connector bodies for the two junctions of the previous implant and the remaining host bone were designed for the most functional position or angle by twisting or tilting. Using the previous 3D-printed implant as a taper, the 3D-printed connector was used to encase the outside of the previous implant. The gap between the previous implant and the new one was subsequently filled with bone cement. For both the upper and lower extremities, the 3D-printed connector showed stable reconstruction and excellent functional outcomes (Musculoskeletal Tumor Society scores of 87% and 100%, respectively) in the short-term follow-up. To retain the previous 3D-printed implant during revision limb salvage surgery, an additional 3D-printed implant may be a feasible surgical option.
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Gao, Terry, Michael Rivlin et John A. Abraham. « Three-dimensional Printing Technology and Role for Custom Implants in Orthopedic Oncology ». Techniques in Orthopaedics 33, no 3 (septembre 2018) : 166–74. http://dx.doi.org/10.1097/bto.0000000000000292.

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Zdravković, Milan, Miroslav Trajanović, Miloš Stojković, Dragan Mišić et Nikola Vitković. « A case of using the Semantic Interoperability Framework for custom orthopedic implants manufacturing ». Annual Reviews in Control 36, no 2 (décembre 2012) : 318–26. http://dx.doi.org/10.1016/j.arcontrol.2012.09.013.

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Mosca, Massimiliano, Alberto Grassi et Silvio Caravelli. « Osteochondral Lesions of Ankle and Knee. Will Future Treatments Really Be Represented by Custom-Made Metal Implants ? » Journal of Clinical Medicine 11, no 13 (1 juillet 2022) : 3817. http://dx.doi.org/10.3390/jcm11133817.

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Tappa, Karthik, Udayabhanu Jammalamadaka, Jeffery Weisman, David Ballard, Dallas Wolford, Cecilia Pascual-Garrido, Larry Wolford, Pamela Woodard et David Mills. « 3D Printing Custom Bioactive and Absorbable Surgical Screws, Pins, and Bone Plates for Localized Drug Delivery ». Journal of Functional Biomaterials 10, no 2 (1 avril 2019) : 17. http://dx.doi.org/10.3390/jfb10020017.

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Additive manufacturing has great potential for personalized medicine in osseous fixation surgery, including maxillofacial and orthopedic applications. The purpose of this study was to demonstrate 3D printing methods for the fabrication of patient-specific fixation implants that allow for localized drug delivery. 3D printing was used to fabricate gentamicin (GS) and methotrexate (MTX)-loaded fixation devices, including screws, pins, and bone plates. Scaffolds with different infill ratios of polylactic acid (PLA), both without drugs and impregnated with GS and MTX, were printed into cylindrical and rectangular-shaped constructs for compressive and flexural strength mechanical testing, respectively. Bland PLA constructs showed significantly higher flexural strength when printed in a Y axis at 100% infill compared to other axes and infill ratios; however, there was no significant difference in flexural strength between other axes and infill ratios. GS and MTX-impregnated constructs had significantly lower flexural and compressive strength as compared to the bland PLA constructs. GS-impregnated implants demonstrated bacterial inhibition in plate cultures. Similarly, MTX-impregnated implants demonstrated a cytotoxic effect in osteosarcoma assays. This proof of concept work shows the potential of developing 3D printed screws and plating materials with the requisite mechanical properties and orientations. Drug-impregnated implants were technically successful and had an anti-bacterial and chemotherapeutic effect, but drug addition significantly decreased the flexural and compressive strengths of the custom implants.
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Thèses sur le sujet "Custom orthopedic implants"

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Cronskär, Marie. « The use of additive manufacturing in the custom design of orthopedic implants ». Licentiate thesis, Mittuniversitetet, Institutionen för teknik och hållbar utveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-14390.

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Nioti, Antonia Evgenia. « Additive Manufacturing in Orthopedics and Craniomaxillofacial Surgery for the Development of High-risk Custom-made Implants : A Qualitative Study of Implementation Factors from a Multi-stakeholder Perspective ». Thesis, Uppsala universitet, Industriell teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-424980.

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Additive manufacturing (AM) has enabled the possibility for the hospitals to become their own implant producers developing implants that are tailored to patient’s anatomy. Despite the enormous potential of custom-made implants there are challenges that complicate the implementation of them into clinical practice. The aim of this research is to (1) identify the main driving forces and barriers for the delivery of custom-made implants; (2) explore staff stakeholder views and practices related to the implementation of AM in surgery for the development of custom-made implants; (3) formulate recommendations on how to cope with the implementation challenges. The research method was an explorative qualitative study consisted of a literature review on the challenges of custom-made implants in clinical applications coupled with the collection and inductive analysis of empirical data. The empirical study was based on ten semi-structured interviews conducted among both domestic and international hospital managers medical doctors and research engineers. The consolidated framework for implementation research (CFIR) was utilized for data collection. Using the five domains of CFIR, the following results were obtained: (1) Characteristics of individuals: Most research participants indicated a positive attitude towards the innovation expressing self-efficacy to its use; (2) Intervention characteristics: Custom-made implants were perceived to have a relative advantage in surgical practice due to their high degree of observability and geometrical adaptability providing increased surgical quality, perfect patient fit and better understanding of pathologies. However, high implementation costs, low degree of trialability and high degree of complexity in the development process were regarded as drawbacks of the innovation; (3) Outer setting: the regulatory uncertainty and lack of reimbursement limit the accessibility of custom-made implants to low income populations; (4) Inner setting: scarcity of resources, staff resistance to change, insufficient management support, communication difficulties, limited access to educational materials and training opportunities as well as lack of time and innovative capacity were regarded by the majority of participants as implementation barriers; (5) Process: central for the success of implementation is the need for a coherent implementation plan and evaluation process as well as the engagement of key stakeholders such as hospital managers, payers, regulatory and implementation advisors. This dissertation proffers a deeper understanding of the implementation issues related to custom-made implants and offers preliminary recommendations on how to cope with implementation impediments through the use of Rogers diffusion of innovation coupled with concepts from the field of organizational change and innovation management including Clayton’s disruptive innovation.
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Guariento, Lorenzo. « Design automation of lattice-based customized orthopedic for load-bearing implants ». Doctoral thesis, 2022. http://hdl.handle.net/2158/1264388.

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Chapitres de livres sur le sujet "Custom orthopedic implants"

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Harrysson, Ola L. A., et Denis R. Cormier. « Direct Fabrication of Custom Orthopedic Implants Using Electron Beam Melting Technology ». Dans Advanced Manufacturing Technology for Medical Applications, 191–206. Chichester, UK : John Wiley & Sons, Ltd, 2006. http://dx.doi.org/10.1002/0470033983.ch9.

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Papagelopoulos, Panayiotis J., et Olga Savvidou. « Implant Reconstruction of the Foot 3D-Printed Custom-Made Prosthesis ». Dans Orthopedic Surgical Oncology For Bone Tumors, 367–78. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73327-8_35.

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Donati, Davide Maria, et Tommaso Frisoni. « Implant Reconstruction of the Pelvis : IV : 3D-Printed Custom-Made Prosthesis ». Dans Orthopedic Surgical Oncology For Bone Tumors, 121–31. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73327-8_12.

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Papagelopoulos, Panayiotis J., et Olga Savvidou. « Implant Reconstruction of the Tibial Diaphysis and Ankle : 3D-Printed Custom-Made Prosthesis ». Dans Orthopedic Surgical Oncology For Bone Tumors, 345–54. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73327-8_33.

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Actes de conférences sur le sujet "Custom orthopedic implants"

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Neamah, Zaineb Hameed, Luma A. H. Al-Kindi et Ghassan Al-Kindi. « Additive Manufacturing of Custom Orthopedic Implants : A Review ». Dans 2022 International Conference for Natural and Applied Sciences (ICNAS). IEEE, 2022. http://dx.doi.org/10.1109/icnas55512.2022.9944673.

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Dooley, R. L., G. Heimke, Aijt Dingankar, E. Berg et E. Kimbrough. « Automated design and analysis system for design of custom orthopedic implants ». Dans the first international conference. New York, New York, USA : ACM Press, 1988. http://dx.doi.org/10.1145/51909.51955.

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Hong Chen, Chen Jia, Yi Chen, Ming Liu, Chun Zhang et Zihua Wang. « A low-power IC design for the wireless monitoring system of the orthopedic implants ». Dans 2008 IEEE Custom Integrated Circuits Conference - CICC 2008. IEEE, 2008. http://dx.doi.org/10.1109/cicc.2008.4672097.

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Helguero, Carlos G., Juan Castro, César Ochoa, Fausto Maldonado, Emilio A. Ramírez et Jorge L. Amaya. « Improving Cutting Path on Custom 3D-Printed Surgical Guides for Bone-Tumor Resection ». Dans ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10627.

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Abstract Custom three-dimensional (3D) printed guides are being used in the operative room as an aid to surgeons for increasing the accuracy of their cutting and resection techniques. In terms of bone-tumor resection, the cutting path printed in the custom jig is significantly important for two main purposes: first, the required fit for the implant that will replace the resected bone section and, second, the interaction between the remaining, healthy bone and the new implant in terms of forces, stresses and deformation. Bone tumor resection has posed a challenge in orthopedic oncology, specifically due to a high level of difficulty in performing a limb-sparing surgery with negative margins on the remaining bone. A straight cutting path is usually used in clinical procedures due to the type of tooling available inside the operative room. 3D printed cutting path guides offer the possibility to evolve from a straight to a different path, e.g. a tapered path, and overcome fitting problems during surgery. This work investigates the current straight cutting path used for typical bone tumor resection and compares it to a proposed tapered cutting path in terms of both implant fitting and stress analysis. Finite element analysis software is used to simulate a compression force exerted over the femur bone. Different taper cut angles are studied and results are reported to obtain an ideal angle for resection. Results are presented to evidence the need to evolve from the current resection technique in order to minimize the number of revision surgeries and for a better quality of life of patients under this type of surgical procedure.
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