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3D printing fracture

Silvio Giannetti, Nicola Bizzotto, Andrea Stancati, Attilio Santucci
The purpose of our study was to compare the outcome after minimally invasive reconstruction and internal fixation with and without the use of pre- and intra-operative real size 3D printing for patients with displaced tibial plateau fractures (TPFs). We prospectively followed up 40 consecutive adult patients with closed TPF who underwent surgical treatment of reconstruction of the tibial plateau with the use of minimally invasive fixation. Sixteen patients (group 1) were operated using a pre-operative and intra-operative real size 3D-model, while 24 patients (group 2) were operated without 3D-model printing, but using only pre-operative and intra-operative 3D Tc-scan images...
November 18, 2016: Injury
Parang S Sanghavi, Bhavin G Jankharia
Pelvic injuries are not uncommon. The complex anatomy of the pelvic bones, the complex pattern of injuries, associated important structures such as neurovascular bundles, and difficult access make the reduction and fixation of these fractures difficult. Often the surgical outcomes are not satisfactory. Three-dimensional (3D) imaging using computed tomography (CT) scan (3DCT) has been the mainstay of preoperative evaluation since the 1980s, however, even with these images it may be difficult to understand complex injury patterns...
July 2016: Indian Journal of Radiology & Imaging
L Maini, A Sharma, S Jha, A Sharma, A Tiwari
PURPOSE: Due to the complexity of acetabulum, achieving anatomical contouring intra-operatively is difficult for surgeon. A 3D (dimensional) real model can facilitate us both in contouring the plate pre-operatively and in better pre-operative planning. Patient-specific pre-contoured plate in acetabular fracture has been studied by few researchers but randomized case-control study was lacking. Hence, we conducted a case-control study to evaluate the accuracy of patient-specific pre-contoured plate...
October 26, 2016: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
Peng Yang, Di Du, Zhibin Zhou, Nan Lu, Qiang Fu, Jun Ma, Liangyu Zhao, Aimin Chen
INTRODUCTION: Osteotomy and internal fixation are usually the most effective way to treat the malunion of lateral tibial plateau fractures, and the accuracy of the osteotomy is still a challenge for surgeons. This is a report of a series of prospectively study of osteotomy treatment for the malunion of lateral plateau fractures with the aid of 3D printing technology. METHODS: A total of 7 patients with malunion of lateral tibial plateau fractures were enrolled in the study between September 2012 to September 2014 and completed follow up...
December 2016: Injury
Sajad Arabnejad, Burnett Johnston, Michael Tanzer, Damiano Pasini
Current hip replacement femoral implants are made of fully solid materials which all have stiffness considerably higher than that of bone. This mechanical mismatch can cause significant bone resorption secondary to stress shielding, which can lead to serious complications such as peri-prosthetic fracture during or after revision surgery. In this work, a high strength fully porous material with tunable mechanical properties is introduced for use in hip replacement design. The implant macro geometry is based off of a short stem taper-wedge implant compatible with minimally invasive hip replacement surgery...
September 24, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Francisco Chana-Rodríguez, Rubén Pérez Mañanes, José Rojo-Manaute, Pablo Gil, José María Martínez-Gómiz, Javier Vaquero-Martín
We describe the methodical and possibilities of 3D surgical printing in preoperative planning of acetabular fractures showing a case of a 45-year-old with an associated transverse fracture of the left acetabulum with posterior wall fracture, with multiple fragments, and posterior ipsilateral hip dislocation, defending the do it your-self mode.
August 29, 2016: Injury
Donglei Wei, Jinsuh Jung, Huilin Yang, David A Stout, Lei Yang
Unfortunately, osteoporosis, as a worldwide disease, is challenging human health with treatment only available for the symptoms of osteoporosis without managing the disease itself. Osteoporosis can be linked as the common cause of fractures and increased mortality among post-menopausal women, men, and the elderly. Regrettably, due to osteoporosis, incidents of fractures are more frequent among the presented populations and can be afflictive for carrying out everyday life activities. Current treatments of osteoporosis encompass changing lifestyles, taking orthopedic drugs, and invasive surgeries...
October 2016: Current Osteoporosis Reports
W You, L J Liu, H X Chen, J Y Xiong, D M Wang, J H Huang, J L Ding, D P Wang
PURPOSE: This study was conducted to investigate the feasibility and clinical potential of using the 3D printing technology (3DPT) versus typical strategy (thin-layer CT scan) for the treatment of complicated proximal humeral fractures (PHFs) in old people. METHODS: Sixty-six old patients age ranging from 61 to 76 years with persistent complicated PHFs were randomly assigned to two groups as per the controlled randomization table (34 cases in the test group and 32 cases in the control group)...
August 9, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
H Hoekstra, W Rosseels, A Sermon, S Nijs
We describe the step-by-step process of a corrective osteotomy using 3D printed patient specific guides. Before surgery, bilateral computed tomography (CT) scans are made to plan correction in the affected limb. The digital pre-planning defines the location of the K-wires, drill holes, and the osteotomy site(s). Subsequently, a 3D printed patient specific guide is applied, which indicates the exact position of these drill holes and the osteotomies. This increases the accuracy of the surgery by means of patient specific fit of the guide...
October 2016: Injury
Long Yang, Xian-Wen Shang, Jian-Nan Fan, Zhi-Xu He, Jian-Ji Wang, Miao Liu, Yong Zhuang, Chuan Ye
To evaluate the effect of 3D printing in treating trimalleolar fractures and its roles in physician-patient communication, thirty patients with trimalleolar fractures were randomly divided into the 3D printing assisted-design operation group (Group A) and the no-3D printing assisted-design group (Group B). In Group A, 3D printing was used by the surgeons to produce a prototype of the actual fracture to guide the surgical treatment. All patients underwent open reduction and internal fixation. A questionnaire was designed for doctors and patients to verify the verisimilitude and effectiveness of the 3D-printed prototype...
2016: BioMed Research International
Ali Entezari, Seyed-Iman Roohani-Esfahani, Zhongpu Zhang, Hala Zreiqat, Colin R Dunstan, Qing Li
Healing large bone defects, especially in weight-bearing locations, remains a challenge using available synthetic ceramic scaffolds. Manufactured as a scaffold using 3D printing technology, Sr-HT-Gahnite at high porosity (66%) had demonstrated significantly improved compressive strength (53 ± 9 MPa) and toughness. Nevertheless, the main concern of ceramic scaffolds in general remains to be their inherent brittleness and low fracture strength in load bearing applications. Therefore, it is crucial to establish a robust numerical framework for predicting fracture strengths of such scaffolds...
2016: Scientific Reports
Canjun Zeng, Weirong Xing, Zhanglin Wu, Huajun Huang, Wenhua Huang
OBJECTIVE: Treatment of acetabular fractures remains one of the most challenging tasks that orthopaedic surgeons face. An accurate assessment of the injuries and preoperative planning are essential for an excellent reduction. The purpose of this study was to evaluate the feasibility, accuracy and effectiveness of performing 3D printing technology and computer-assisted virtual surgical procedures for preoperative planning in acetabular fractures. We hypothesised that more accurate preoperative planning using 3D printing models will reduce the operation time and significantly improve the outcome of acetabular fracture repair...
March 17, 2016: Injury
Tiago R Correia, Daniela R Figueira, Kevin D de Sá, Sónia P Miguel, Ricardo G Fradique, António G Mendonça, Ilídio J Correia
Nowadays, the incidence of bone disorders has steeply ascended and it is expected to double in the next decade, especially due to the ageing of the worldwide population. Bone defects and fractures lead to reduced patient's quality of life. Autografts, allografts and xenografts have been used to overcome different types of bone injuries, although limited availability, immune rejection or implant failure demand the development of new bone replacements. Moreover, the bacterial colonization of bone substitutes is the main cause of implant rejection...
June 3, 2016: International Journal of Biological Macromolecules
Péter Zádori, Gábor Bajzik, Gergely Biró, Zsuzsanna Lelovics, Timea Balassa, Zsolt Bernert, Sándor Evinger, Hajdu Tamás, Antónia Marcsik, Erika Molnar, Brigitta Osz, György Pálfi, Katalin Wolff, Imre Repa
BACKGROUND AND PURPOSE: Introducing the multidisciplinary paleoradiology research at the Institute of Diagnostic Imaging and Radiation Oncology of the Kaposvár University, highlighting the cases with potential central nervous system involvement--from the scanning methods to the 3D printing--in order to draw attention to the historical background and clinical aspects of certain pathological conditions. METHODS: The authors developed the examination protocols for three different CT scanners...
March 30, 2016: Ideggyógyászati Szemle
Maarten Vehmeijer, Maureen van Eijnatten, Niels Liberton, Jan Wolff
Fractures of the orbital floor are often a result of traffic accidents or interpersonal violence. To date, numerous materials and methods have been used to reconstruct the orbital floor. However, simple and cost-effective 3-dimensional (3D) printing technologies for the treatment of orbital floor fractures are still sought. This study describes a simple, precise, cost-effective method of treating orbital fractures using 3D printing technologies in combination with autologous bone. Enophthalmos and diplopia developed in a 64-year-old female patient with an orbital floor fracture...
August 2016: Journal of Oral and Maxillofacial Surgery
Victor A Lifton
Oil production is a critical industrial process that affects the entire world population and any improvements in its efficiency while reducing its environmental impact are of utmost societal importance. The paper reviews recent applications of microfluidics and microtechnology to study processes of oil extraction and recovery. It shows that microfluidic devices can be useful tools in investigation and visualization of such processes used in the oil & gas industry as fluid propagation, flooding, fracturing, emulsification and many others...
May 21, 2016: Lab on a Chip
Yi-Tian Wang, Xin-Jian Yang, Bin Yan, Teng-Hui Zeng, Yi-Yan Qiu, Si-Jin Chen
PURPOSE: To investigate the usefulness of three-dimensional (3D) printing in complex spinal surgery. METHODS: The study was conducted from October 2014 to March 2015 in Shenzhen Second Peoples' Hospital and 4 cases of complex severe spinal disorders were selected from our department. Among them one patient combined with congenital scoliosis, one with atlas neoplasm, one with atlantoaxial dislocation, and the rest one with atlantoaxial fracture-dislocation. The data of the diseased region was collected from computerized tomography scans for 3D digital reconstruction and rapid prototyping to prepare photosensitive resin models, which were applied in the treatment of these cases...
2016: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
B Oxley, S Behr
No abstract text is available yet for this article.
May 2016: Journal of Small Animal Practice
Jai Hyung Park, Yongkoo Lee, Oog-Jin Shon, Hyun Chul Shon, Ji Wan Kim
INTRODUCTION: The surgical management of atypical femoral fractures (AFFs) is complex in cases with severe bowing of the femur, being associated with a high rate of failure. Our first aim was to use preoperative templating and 3D printed model characterise the technical difficulties associated with use of current commercially available intramedullary nail (IMN) systems for the management of AFFs with severe bowing. Our second aim was to use outcomes of our 3D printing analysis to define technical criteria to overcome these problems...
June 2016: Injury
Can-Jun Zeng, Xin-Yu Tan, Hua-Jun Huang, Wei-Qi Huang, Tao Li, Da-di Jin, Guo-Dong Zhang, Wen-Hua Huang
OBJECTIVE: To evaluate the clinical effect of 3D printing-assisted minimal invasive surgery on pelvic fracture by plate internal fixation through a small incision lateral to the rectus abdominis. METHODS: This retrospective study was conducted among 50 patients with pelvic fracture undergoing anteromedial plate internal fixation between September, 2013 and June, 2015. Thin-layer computed tomography scan data of the patients were input into Mimics software in DICOM format for 3D editing and virtual surgery before the operation...
February 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
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