keyword
MENU ▼
Read by QxMD icon Read
search

3D printing fracture

keyword
https://www.readbyqxmd.com/read/29152500/application-of-3d-technology-and-printing-for-femoral-derotation-osteotomy-case-and-technical-report
#1
Nicolás Fiz, Diego Delgado, Xabier Sánchez, Pello Sánchez, Ane Miren Bilbao, Jaime Oraa, Mikel Sánchez
In some surgical techniques like femoral derotation osteotomy, accuracy is a key factor that often is not optimal because of the lack of appropriate technology. 3D printing is emerging in many professional areas and its use in the medical field may enhance the results of certain surgeries. This case describes a patient who underwent an intramedullary nail fixation to treat a femoral shaft fracture. After nine months, the patient presented hip pain and "in toe" walking caused by a malrotation produced during the surgery...
October 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29107127/cyclodextrins-as-versatile-building-blocks-for-regenerative-medicine
#2
REVIEW
Carmen Alvarez-Lorenzo, Carlos A García-González, Angel Concheiro
Cyclodextrins (CDs) are one of the most versatile substances produced by nature, and it is in the aqueous biological environment where the multifaceted potential of CDs can be completely unveiled. CDs form inclusion complexes with a variety of guest molecules, including polymers, producing very diverse biocompatible supramolecular structures. Additionally, CDs themselves can trigger cell differentiation to distinct lineages depending on the substituent groups and also promote salt nucleation. These features together with the affinity-driven regulated release of therapeutic molecules, growth factors and gene vectors explain the rising interest for CDs as building blocks in regenerative medicine...
October 26, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29067535/prebending-of-osteosynthesis-plate-using-3d-printed-models-to-treat-symptomatic-os-acromiale-and-acromial-fracture
#3
Hanne Beliën, Hanne Biesmans, Anny Steenwerckx, Eric Bijnens, Carl Dierickx
BACKGROUND: A symptomatic os acromiale can lead to impingement syndrome and rotator cuff tendinopathy. An acromion fracture is often part of a more complex scapular trauma that needs stabilisation. METHODS: We developed a new technique using a three-dimensional (3D) model and a distal clavicle reconstruction plate to treat os acromiale and acromion fractures. Our hypothesis was that such an approach would be a useful addition to the existing techniques. First, a 3D model of the acromion was printed, then an osteosynthesis plate was pre-bent to fit the exact shape and curve of the acromion...
October 24, 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/29064570/effects-of-scaffold-microstructure-and-low-intensity-pulsed-ultrasound-on-chondrogenic-differentiation-of-human-mesenchymal-stem-cells
#4
Mitra Aliabouzar, Se-Jun Lee, Xuan Zhou, Grace Lijjie Zhang, Kausik Sarkar
The effects of low intensity pulsed ultrasound (LIPUS) on proliferation and chondrogenic differentiation of human mesenchymal stem cells (hMSCs) seeded on 3D printed poly-(ethylene glycol)-diacrylate (PEG-DA) scaffolds with varying pore geometries (square and hexagonal channels) were investigated. The scaffold with square pores resulted in higher hMSC growth and chondrogenic differentiation than a solid or a hexagonally porous scaffold. The optimal LIPUS parameters at 1.5 MHz were found to be 100 mW/cm(2) and 20% duty cycle...
October 24, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29062036/3d-printing-bioinspired-ceramic-composites
#5
Ezra Feilden, Claudio Ferraro, Qinghua Zhang, Esther García-Tuñón, Eleonora D'Elia, Finn Giuliani, Luc Vandeperre, Eduardo Saiz
Natural structural materials like bone and shell have complex, hierarchical architectures designed to control crack propagation and fracture. In modern composites there is a critical trade-off between strength and toughness. Natural structures provide blueprints to overcome this, however this approach introduces another trade-off between fine structural manipulation and manufacturing complex shapes in practical sizes and times. Here we show that robocasting can be used to build ceramic-based composite parts with a range of geometries, possessing microstructures unattainable by other production technologies...
October 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29044984/3d-printed-calcium-phosphate-and-poly-caprolactone-composites-with-improved-mechanical-properties-and-preserved-microstructure
#6
Joseph B Vella, Ryan P Trombetta, Michael D Hoffman, Jason Inzana, Hani Awad, Danielle S W Benoit
Biphasic calcium phosphate scaffolds formed via 3D printing technology to exhibit porosity and chemical resorbability to promote osseointegration often lack the strength and toughness required to withstand loading in bone tissue engineering applications. Herein, sintering and CaP:poly(caprolactone) (PCL) composite formation were explored to improve 3D printed scaffold strength and toughness. Hydroxyapatite and α-tricalcium phosphate (α-TCP) biphasic calcium powders were printed using phosphoric acid binder, which generated monetite and hydroxyapatite scaffolds...
October 16, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29042960/application-of-3d-printing-rapid-prototyping-assisted-percutaneous-fixation-in-the-treatment-of-intertrochanteric-fracture
#7
Sheng-Nai Zheng, Qing-Qiang Yao, Feng-Yong Mao, Peng-Fei Zheng, Shu-Chang Tian, Jia-Yi Li, Yi-Fan Yu, Shuai Liu, Jin Zhou, Jun Hu, Yan Xu, Kai Tang, Yue Lou, Li-Ming Wang
The aim of the present study was to investigate the application of 3D printing (3DP) rapid prototyping (RP) technique-assisted percutaneous fixation in the treatment of femoral intertrochanteric fracture (ITF) using proximal femoral nail anti-rotation (PFNA). A total of 39 patients with unstable ITF were included in the current study. Patients were divided into two groups: 19 patients were examined using computed tomography scanning and underwent PFNA with SDP-RP whereas the other 20 patients underwent conventional PFNA treatment...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28990838/3d-printing-calcaneal-fractures-continuously-improving-our-care-by-making-a-complex-problem-tangible
#8
Tim Schepers, Dominique Misselyn
Calcaneal fractures are amongst the most complex injuries known to man. Their intricate anatomy and extensive damage after trauma make them difficult to understand and treat. Most surgeons specialized in foot and ankle trauma agree that in most patients surgical managements yields the best result. Functional outcome is largely dependent on preventing complications and restoring anatomy. Reconstruction of height and suntalar joint congruency for example are both associated with improved outcome. Over the years insight in the complex (patho-)anatomy has increased...
October 9, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28966386/laparoscopic-acetabular-fracture-fixation-after-three-dimensional-modelling-and-printing
#9
Can-Jun Zeng, Wen-Hua Huang, Hua-Jun Huang, Zhang-Lin Wu
Current surgical treatment of acetabular fractures is open reduction and internal fixation and requires a large incision resulting in considerable blood loss and a potentially long duration of recovery. We report a case of an acetabular fracture that received laparoscopic internal fixation after three-dimensional (3D) modelling and printing of the acetabulum. A 43 year old male fell from a height of 3 m resulting in a right acetabulum anterior column fracture. Thin section computed tomography scanning with 0...
September 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28934914/new-concept-of-3d-printed-bone-clip-polylactic-acid-hydroxyapatite-silk-composite-for-internal-fixation-of-bone-fractures
#10
Yeung Kyu Yeon, Hae Sang Park, Jung Min Lee, Ji Seung Lee, Young Jin Lee, Md Tipu Sultan, Ye Bin Seo, Ok Joo Lee, Soon Hee Kim, Chan Hum Park
Open reduction with internal fixation is commonly used for the treatment of bone fractures. However, postoperative infection associated with internal fixation devices (intramedullary nails, plates, and screws) remains a significant complication, and it is technically difficult to fix multiple fragmented bony fractures using internal fixation devices. In addition, drilling in the bone to install devices can lead to secondary fracture, bone necrosis associated with postoperative infection. In this study, we developed bone clip type internal fixation device using three- dimensional (3D) printing technology...
September 22, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28925760/comparison-of-the-conventional-surgery-and-the-surgery-assisted-by-3d-printing-technology-in-the-treatment-of-calcaneal-fractures
#11
Wenhao Zheng, Zhenyu Tao, Yiting Lou, Zhenhua Feng, Hang Li, Liang Cheng, Hui Zhang, Jianshun Wang, Xiaoshan Guo, Hua Chen
PURPOSE: This study was aimed to compare conventional surgery and surgery assisted by 3D printing technology in the treatment of calcaneal fractures. In addition, we also investigated the effect of 3D printing technology on the communication between doctors and patients. METHODS: we enrolled 75 patients with calcaneal fracture from April 2014 to August 2016. They were divided randomly into two groups: 35 cases of 3D printing group, 40 cases of conventional group...
September 19, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28899562/the-design-production-and-clinical-application-of-3d-patient-specific-implants-with-drilling-guides-for-acetabular-surgery
#12
B J Merema, J Kraeima, K Ten Duis, K W Wendt, R Warta, E Vos, R H Schepers, M J H Witjes, F F A IJpma
An innovative procedure for the development of 3D patient-specific implants with drilling guides for acetabular fracture surgery is presented. By using CT data and 3D surgical planning software, a virtual model of the fractured pelvis was created. During this process the fracture was virtually reduced. Based on the reduced fracture model, patient-specific titanium plates including polyamide drilling guides were designed, 3D printed and milled for intra-operative use. One of the advantages of this procedure is that the personalised plates could be tailored to both the shape of the pelvis and the type of fracture...
August 30, 2017: Injury
https://www.readbyqxmd.com/read/28899557/can-the-recovery-of-lower-limb-fractures-be-achieved-by-use-of-3d-printing-mirror-model
#13
Wenxi Zhang, Yueping Ji, Xinming Wang, Jie Liu, Dong Li
INTRODUCTION: The mirror imaging 3D printing model can be used a as a reference for anatomical reduction in unilateral lower limb fractures. However, the premise of using mirror technology is that the bilateral lower limb bones are similar enough. Because one side had a fracture, it was impossible to compare this directly to the other side. Usually, surgeons think that the bilateral bones are symmetrical and use mirror technology without judging their symmetry. METHODS: In patients with a unilateral lower limb bone fracture, we measured the long axis and short axis of the three selected transverse sections of the bilateral long bone for comparison to judge the symmetry of the bilateral long bones on CT images...
September 6, 2017: Injury
https://www.readbyqxmd.com/read/28894837/dental-occlusion-ties-a-rapid-safe-and-non-invasive-maxillo-mandibular-fixation-technology
#14
Alan W Johnson
OBJECTIVES: For decades, Erich arch bars have been a standard in establishing maxillo-mandibular fixation (MMF). While reliable, the approach risks sharps injury, consumes operating room time, and inflicts gingival trauma. Newer technologies including screw-based techniques and "hybrid" techniques have improved MMF by reducing sharps injuries and operating room time, but risk injury to tooth roots, nerves, and gingiva. This study aims to establish the application, strengths, and limitations of dental occlusion ties as a novel alternative in maxillo-mandibular fixation...
August 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/28882373/a-paradigm-shift-in-surgical-planning-and-simulation-using-3dgraphy-experience-of-first-50-surgeries-done-using-3d-printed-biomodels
#15
Vaibhav Bagaria, Kshitij Chaudhary
INTRODUCTION: Preoperative planning is an important aspect of any orthopedic surgery. Traditionally, surgeons mentally rehearse the operation and anticipate problems based on data available from "radiography" like MRI and CT. 3D printed bio-models and tools, or "3Dgraphy" can simplify this mental exercise and provide a realistic and user-friendly portrayal of this radiographic data. METHODS: Five surgeons participated in this multicenter study. 3D printed biomodels were obtained for 50 surgical cases that included periarticular trauma (24), pelvic trauma (11), complex primary (7), and revision arthroplasty (8)...
September 1, 2017: Injury
https://www.readbyqxmd.com/read/28856399/three-dimensional-printing-technology-and-materials-for-treatment-of-elbow-fractures
#16
Long Yang, Brian Grottkau, Zhixu He, Chuan Ye
PURPOSE: 3D printing is a rapid prototyping technology that uses a 3D digital model to physically build an object. The aim of this study was to evaluate the peri-operative effect of 3D printing in treating complex elbow fractures and its role in physician-patient communication and determine which material is best for surgical model printing. METHOD: Forty patients with elbow fractures were randomly divided into a 3D printing-assisted surgery group (n = 20) and a conventional surgery group (n = 20)...
November 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28842703/in-situ-repair-of-bone-and-cartilage-defects-using-3d-scanning-and-3d-printing
#17
Lan Li, Fei Yu, Jianping Shi, Sheng Shen, Huajian Teng, Jiquan Yang, Xingsong Wang, Qing Jiang
Three-dimensional (3D) printing is a rapidly emerging technology that promises to transform tissue engineering into a commercially successful biomedical industry. However, the use of robotic bioprinters alone is not sufficient for disease treatment. This study aimed to report the combined application of 3D scanning and 3D printing for treating bone and cartilage defects. Three different kinds of defect models were created to mimic three orthopedic diseases: large segmental defects of long bones, free-form fracture of femoral condyle, and International Cartilage Repair Society grade IV chondral lesion...
August 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28828975/customized-titanium-mesh-based-on-the-3d-printed-model-vs-manual-intraoperative-bending-of-titanium-mesh-for-reconstructing-of-orbital-bone-fracture-a-randomized-clinical-trial
#18
Shahrokh Raisian, Hamid Reza Fallahi, Kazem S Khiabani, Mehdi Heidarizadeh, Sadaf Azdoo
BACKGROUND: This study was aimed to compare the efficacy of customized patient-specific titanium mesh based on 3D printed model with intra-operative bending of titanium mesh for reconstructing of orbital floor fracture. METHODS: This study was prospectively conducted on 10 patients with unilateral orbital floor fractures caused by accident or falls. In intervention group (n=5), the CT-scan slices were used for generating 3D reconstruction of both affected and unaffected orbits...
August 21, 2017: Reviews on Recent Clinical Trials
https://www.readbyqxmd.com/read/28820570/engineering-of-micro-to-nanostructured-3d-printed-drug-releasing-titanium-implants-for-enhanced-osseointegration-and-localized-delivery-of-anticancer-drugs
#19
Shaheer Maher, Gagandeep Kaur, Luis Lima-Marques, Andreas Evdokiou, Dusan Losic
Primary and secondary bone cancers are major causes of pathological bone fractures which are usually treated through implant fixation and chemotherapy. However, both approaches face many limitations. On one hand, implants may suffer from poor osseointegration, and their rejection results in repeated surgery, patient's suffering, and extensive expenses. On the other hand, there are severe systemic adverse effects of toxic chemotherapeutics which are administrated systemically. In this paper, in order to address these two problems, we present a new type of localized drug-releasing titanium implants with enhanced implants' biointegration and drug release capabilities that could provide a high concentration of anticancer drugs locally to treat bone cancers...
August 24, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28801685/investigation-on-ti6al4v-v-cr-fe-ss316-multi-layers-metallic-structure-fabricated-by-laser-3d-printing
#20
Wei Li, Frank Liou, Joseph Newkirk, Karen M Brown Taminger, William J Seufzer
Joining titanium alloy and stainless steel is becoming an urgent need since their outstanding mechanical properties can be utilized integratedly. However, direct fusion joining of Ti6Al4V to SS316 can cause brittle Ti-Fe intermetallics which compromise join bonds' mechanical properties. In this research, Laser 3D Printing was applied to explore a new Ti6Al4V to SS316 multi-metallic structure. A novel filler transition route was introduced (Ti6Al4V → V → Cr → Fe → SS316) to avoid the Ti-Fe intermetallics...
August 11, 2017: Scientific Reports
keyword
keyword
67372
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"