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3D printing fracture

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https://www.readbyqxmd.com/read/29782615/feasibility-study-applying-a-parametric-model-as-the-design-generator-for-3d-printed-orthosis-for-fracture-immobilization
#1
Jianyou Li, Hiroya Tanaka
Background: Applying 3D printing technology for the fabrication of custom-made orthoses provides significant advantages, including increased ventilation and lighter weights. Currently, the design of such orthoses is most often performed in the CAD environment, but creating the orthosis model is a time-consuming process that requires significant CAD experience. This skill gap limits clinicians from applying this technology in fracture treatment. The purpose of this study is to develop a parametric model as the design generator for 3D-printed orthoses for an inexperienced CAD user and to evaluate its feasibility and ease of use via a training and design exercise...
2018: 3D printing in medicine
https://www.readbyqxmd.com/read/29725736/conventional-plate-fixation-method-versus-pre-operative-virtual-simulation-and-three-dimensional-printing-assisted-contoured-plate-fixation-method-in-the-treatment-of-anterior-pelvic-ring-fracture
#2
Chun-Chi Hung, Yuan-Ta Li, Yu-Ching Chou, Jia-En Chen, Chia-Chun Wu, Hsain-Chung Shen, Tsu-Te Yeh
PURPOSE: Treating pelvic fractures remains a challenging task for orthopaedic surgeons. We aimed to evaluate the feasibility, accuracy, and effectiveness of three-dimensional (3D) printing technology and computer-assisted virtual surgery for pre-operative planning in anterior ring fractures of the pelvis. We hypothesized that using 3D printing models would reduce operation time and significantly improve the surgical outcomes of pelvic fracture repair. METHODS: We retrospectively reviewed the records of 30 patients with pelvic fractures treated by anterior pelvic fixation with locking plates (14 patients, conventional locking plate fixation; 16 patients, pre-operative virtual simulation with 3D, printing-assisted, pre-contoured, locking plate fixation)...
May 3, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29682523/biocompatibility-of-bespoke-3d-printed-titanium-alloy-plates-for-treating-acetabular-fractures
#3
Xuezhi Lin, Xingling Xiao, Yimeng Wang, Cheng Gu, Canbin Wang, Jiahui Chen, Han Liu, Juan Luo, Tao Li, Di Wang, Shicai Fan
Treatment of acetabular fractures is challenging, not only because of its complicated anatomy but also because of the lack of fitting plates. Personalized titanium alloy plates can be fabricated by selective laser melting (SLM) but the biocompatibility of these three-dimensional printing (3D-printed) plates remains unknown. Plates were manufactured by SLM and their cytocompatibility was assessed by observing the metabolism of L929 fibroblasts incubated with culture medium extracts using a CCK-8 assay and their morphology by light microscopy...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29618349/3d-printing-based-minimally-invasive-cannulated-screw-treatment-of-unstable-pelvic-fracture
#4
Leyi Cai, Yingying Zhang, Chunhui Chen, Yiting Lou, Xiaoshan Guo, Jianshun Wang
BACKGROUND: Open reduction and internal fixation of pelvic fractures could restore the stability of the pelvic ring, but there were several problems. Minimally invasive closed reduction cannulated screw treatment of pelvic fractures has lots advantages. However, how to insert the cannulated screw safely and effectively to achieve a reliable fixation were still hard for orthopedist. Our aim was to explore the significance of 3D printing technology as a new method for minimally invasive cannulated screw treatment of unstable pelvic fracture...
April 4, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29589802/the-dependence-of-broadband-ultrasound-attenuation-on-phase-interference-in-thin-plates-of-variable-thickness-and-curvature-a-comparison-of-experimental-measurement-and-computer-simulation
#5
Ali Hamed Alomari, Marie-Luise Wille, Christian M Langton
The measurement of broadband ultrasound attenuation describes the linear increase in ultrasound attenuation with frequency (dB/MHz); this is generally performed at the calcaneus, consisting of a high proportion of metabolically active cancellous bone. Although broadband ultrasound attenuation is not routinely implemented within clinical management since it cannot provide a reliable estimation of bone mineral density and hence clinical definition of osteopenia and osteoporosis, it offers a reliable means to predict osteoporotic fracture risk...
March 1, 2018: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29581985/the-feasibility-of-3d-printing-technology-on-the-treatment-of-pilon-fracture-and-its-effect-on-doctor-patient-communication
#6
Wenhao Zheng, Chunhui Chen, Chuanxu Zhang, Zhenyu Tao, Leyi Cai
Purpose: The aim of this study was to assess the feasibility and effectiveness of the three-dimensional (3D) printing technology in the treatment of Pilon fractures. Methods: 100 patients with Pilon fractures from March 2013 to December 2016 were enrolled in our study. They were divided randomly into 3D printing group ( n = 50) and conventional group ( n = 50). The 3D models were used to simulate the surgery and carry out the surgery according to plan in 3D printing group...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29531306/visualization-method-for-stress-field-evolution-during-rapid-crack-propagation-using-3d-printing-and-photoelastic-testing-techniques
#7
Yang Ju, Heping Xie, Xi Zhao, Lingtao Mao, Zhangyu Ren, Jiangtao Zheng, Fu-Pen Chiang, Yongliang Wang, Feng Gao
Quantitative visualization and characterization of stress-field evolution during fracture rapid growth is critical for understanding the mechanisms that govern the deformation and failure of solids in various engineering applications. However, the direct capture and accurate characterization of a rapidly-changing stress field during crack propagation remains a challenge. We report an experimental method to quantitatively visualize and characterize rapid evolution of the stress-field during crack propagation in a transparent disc model containing a penetrating fusiform crack...
March 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29510286/creation-of-3-dimensional-life-size-patient-specific-c1-fracture-models-for-screw-fixation
#8
Figen Govsa, Mehmet Asim Ozer, Huseyin Biceroglu, Asli Beril Karakas, Sedat Cagli, Cenk Eraslan, Ahmet Kemal Alagoz
BACKGROUND: Transarticular screw fixation has fatal complications such as vertebral artery (VA), carotid artery, and spinal cord injuries. The landmarks for deciding the entry point for C1 lateral mass screws were clarified by using life-size 3-dimensional (3D) patient-specific spine models. METHODS: This study included a total of 10 patients with C1 fractures. Dual-energy computed tomography (CT) scan data from C1 pre- and postscrewing were modified into 3D patient-specific life-size cervical spine models...
March 3, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29486449/in-vitro-characterization-of-3d-printed-scaffolds-aimed-at-bone-tissue-regeneration
#9
João C Boga, Sónia P Miguel, Duarte de Melo-Diogo, António G Mendonça, Ricardo O Louro, Ilídio J Correia
The incidence of fractures and bone-related diseases like osteoporosis has been increasing due to aging of the world's population. Up to now, grafts and titanium implants have been the principal therapeutic approaches used for bone repair/regeneration. However, these types of treatment have several shortcomings, like limited availability, risk of donor-to-recipient infection and tissue morbidity. To overcome these handicaps, new 3D templates, capable of replicating the features of the native tissue, are currently being developed by researchers from the area of tissue engineering...
May 1, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29457442/-development-and-application-of-artificial-vertebral-body
#10
REVIEW
Jian-Tao Liu, Feng Zhang, Zheng-Chao Gao, Bin-Bin Niu, Yu-Huan Li, Xi-Jing He
Artificial vertebral body has achieved good results in treating spinal tumors, tuberculosis, fracture and other diseases. Currently, artificial vertebral body with variety of kinds and pros and cons, is generally divided into two types: fusion type and movable type. The former according to whether the height could be adjusted and strength of self-stability is divided into three types: support-fixed type, adjust-fixed type and self-fixed type. Whether the height of self-fixed type could be adjusted is dependent on structure of collar thread rotation...
December 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29457412/-linical-application-of-personalized-3d-printing-guided-template-of-intramedullary-lag-screw-insertion-on-lateral-superior-ramous-of-pubic
#11
Yi Zheng, Xin-Hua Yuan, Wei-Bin Wang, Qing-Song Fu, Qing-Jiang Pang
OBJECTIVE: To evaluate the efficacy and advantages of personalized 3D printing-guided template of lateral superior ramous of pubic intramedullary lag screw. METHODS: From July 2015 to December 2016, 20 patients with the superior and inferior ramous of pubis fracture were treated with lag screws placement. All the patients were divided into test group(with guided template) and control group(with general operation). There were 7 males and 3 females with an average age of (46...
October 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29446490/a-3-dimensional-printed-patient-specific-guide-system-for-minimally-invasive-plate-osteosynthesis-of-a-comminuted-mid-diaphyseal-humeral-fracture-in-a-cat
#12
Bill Oxley
OBJECTIVE: To report the use of a 3-dimensional (3D)-printed patient-specific reduction guide system to facilitate minimally invasive plate osteosynthesis (MIPO) of a humeral fracture in a cat. STUDY DESIGN: Case report. ANIMALS: A 9-year-old male neutered domestic short hair cat weighing 4.4 kg. METHODS: A 9-year-old male domestic short hair cat was presented with a comminuted, mid-diaphyseal left humeral fracture. Computed tomographic data were processed to yield 3D mesh representations of both humeri and subsequently manipulated in computer-aided design software...
April 2018: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/29432987/3d-printed-microchannel-networks-to-direct-vascularisation-during-endochondral-bone-repair
#13
Andrew C Daly, Pierluca Pitacco, Jessica Nulty, Gráinne M Cunniffe, Daniel J Kelly
Bone tissue engineering strategies that recapitulate the developmental process of endochondral ossification offer a promising route to bone repair. Clinical translation of such endochondral tissue engineering strategies will require overcoming a number of challenges, including the engineering of large and often anatomically complex cartilage grafts, as well as the persistence of core regions of avascular cartilage following their implantation into large bone defects. Here 3D printing technology is utilized to develop a versatile and scalable approach to guide vascularisation during endochondral bone repair...
April 2018: Biomaterials
https://www.readbyqxmd.com/read/29424152/-application-of-the-computer-assisted-virtual-reduction-combined-with-3d-printing-technique-in-acetabular-fractures
#14
Yu-Chen Wang, Yong Ma, Wei-Zhong Yu, Yun-Feng Li, Yan-Hui Liu
OBJECTIVE: To investigate the computer-assisted virtual reduction combined with 3D printing technique as preoperative planning and assess their therapeutic effects. METHODS: Thirty-five cases of acetabular fracture treated by internal fixation from March 2011 and March 2014 were retrospectively analyzed. All patients underwent operations with internal fixations implanted. The patients were divided into 2 groups according whether they used the computer-assisted virtual reduction combined with 3D printing technology...
July 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29404793/design-of-an-orthopedic-product-by-using-additive-manufacturing-technology-the-arm-splint
#15
Fernando Blaya, Pilar San Pedro, Julia López Silva, Roberto D'Amato, Enrique Soriano Heras, Juan Antonio Juanes
The traditional fabrication process of custom-made splints has hardly undergone any progress since the beginning of its use at the end of the eighteenth century. New manufacturing techniques and the new materials can help to modernize this treatment method of fractures. The use of Additive Manufacturing has been proposed in recent years as an alternative process for the manufacture of splints and there has been an increase in public awareness and exploration. For this reason, in this study a splint model printed in 3D, that replaces the deficiencies of the cast maintaining its virtues, has been proposed...
February 5, 2018: Journal of Medical Systems
https://www.readbyqxmd.com/read/29402427/novel-implant-for-peri-prosthetic-proximal-tibia-fractures
#16
Ton Tran, Bernard K Chen, Xinhua Wu, Chung Lun Pun
BACKGROUND: Repair of peri-prosthetic proximal tibia fractures is very challenging in patients with a total knee replacement or arthroplasty. The tibial component of the knee implant severely restricts the fixation points of the tibial implant to repair peri-prosthetic fractures. A novel implant has been designed with an extended flange over the anterior of tibial condyle to provide additional points of fixation, overcoming limitations of existing generic locking plates used for proximal tibia fractures...
March 2018: Injury
https://www.readbyqxmd.com/read/29398511/improved-interobserver-reliability-of-the-sanders-classification-in-calcaneal-fractures-using-segmented-three-dimensional-prints
#17
Dominique Misselyn, Stefaan Nijs, Steffen Fieuws, Eman Shaheen, Tim Schepers
We examined the added value of 3-dimensional (3D) prints in improving the interobserver reliability of the Sanders classification of displaced intraarticular calcaneal fractures. Twenty-four observers (radiologists, trainees, and foot surgeons) were asked to rate 2-dimensional (2D) computed tomography images and 3D prints of a series of 11 fractures, selected from cases treatment at our level I trauma center between 2014 and 2016. The interobserver reliability for the Sanders classification was assessed using kappa coefficients...
May 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29387309/correction-of-a-posttraumatic-orbital-deformity-using-three-dimensional-modeling-virtual-surgical-planning-with-computer-assisted-design-and-three-dimensional-printing-of-custom-implants
#18
Kristopher M Day, Paul M Phillips, Larry A Sargent
We describe a case of complex, posttraumatic skull and orbital deformities that were evaluated and treated with advanced computer technology, including virtual surgical planning, three-dimensional (3D) modeling, and printed patient custom implants (PCI) fabricated by 3D printing. A 50-year-old man presented to our craniofacial referral center 1 year after failed reduction of complex left orbital, zygomatic, and frontal bone fractures due to a motorcycle collision. The patient's chief complaint was debilitating diplopia in all fields of gaze...
March 2018: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29368178/evaluation-of-accuracy-of-virtual-surgical-planning-for-patient-specific-pre-contoured-plate-in-acetabular-fracture-fixation
#19
Lalit Maini, Tarun Verma, Amit Sharma, Ankur Sharma, Abhishek Mishra, Sunil Jha
BACKGROUND: Acetabular fractures are amongst the most challenging fractures to treat because of complex anatomy. Open reduction and internal fixation remains the standard treatment for displaced acetabular fractures to achieve anatomical reduction as in any other intra-articular fracture. Patient-specific pre-contoured reconstruction plate template made by a pre-operative virtual surgical planning can be useful to respect patient's morphology, reduce surgical invasiveness and simplify the surgical procedure...
January 24, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29353526/using-3-dimensional-modeling-to-customize-titanium-plates-for-repair-of-chest-wall-trauma
#20
Justin A Smith, Vanessa P Ho, Christopher W Towe
BACKGROUND: Open reduction and internal fixation of rib fractures is recommended to decrease mortality, shorten the duration of mechanical ventilation, and lower hospital length of stay. Prosthetic titanium plates are frequently used to repair chest wall trauma, and are typically contoured to the patient's anatomy at the time of implant in the operating room. We describe the use of 3-dimensional (3D) digitally corrected rapid prototyping to generate a model of a patient's skeletal anatomy for the purposes of preoperative customization of standard titanium plates for fixation of rib fractures...
January 1, 2018: Surgical Innovation
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