scholarly journals Application of 3D Printing in Preoperative Planning

2021 ◽  
Vol 10 (5) ◽  
pp. 917
Author(s):  
Nicole Segaran ◽  
Gia Saini ◽  
Joseph L. Mayer ◽  
Sailen Naidu ◽  
Indravadan Patel ◽  
...  
Keyword(s):  
3D Printing ◽  
Preoperative Planning ◽  
Surgical Simulation ◽  
Three Dimensional ◽  
Anatomical Structures ◽  
Medical Settings ◽  
Innovative Solution ◽  
Surgical Suite ◽  
The Many ◽  
Key Aspects

Preoperative planning is critical for success in the surgical suite. Current techniques for surgical planning are limited; clinicians often rely on prior experience and medical imaging to guide the decision-making process. Furthermore, two-dimensional (2D) presentations of anatomical structures may not accurately portray their three-dimensional (3D) complexity, often leaving physicians ill-equipped for the procedure. Although 3D postprocessed images are an improvement on traditional 2D image sets, they are often inadequate for surgical simulation. Medical 3D printing is a rapidly expanding field and could provide an innovative solution to current constraints of preoperative planning. As 3D printing becomes more prevalent in medical settings, it is important that clinicians develop an understanding of the technologies, as well as its uses. Here, we review the fundamentals of 3D printing and key aspects of its workflow. The many applications of 3D printing for preoperative planning are discussed, along with their challenges.

scholarly journals 3D Printing Aids Acetabular Reconstruction in Complex Revision Hip Arthroplasty

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Andrew J. Hughes ◽  
Cathal DeBuitleir ◽  
Philip Soden ◽  
Brian O’Donnchadha ◽  
Anthony Tansey ◽  
...  
Keyword(s):  
3D Printing ◽  
Hip Arthroplasty ◽  
Surgical Simulation ◽  
Selective Laser Sintering ◽  
Three Dimensional ◽  
3D Models ◽  
Tactile Feedback ◽  
Revision Hip Arthroplasty ◽  
Acetabular Reconstruction ◽  
Acetabular Cup

Revision hip arthroplasty requires comprehensive appreciation of abnormal bony anatomy. Advances in radiology and manufacturing technology have made three-dimensional (3D) representation of osseous anatomy obtainable, which provide visual and tactile feedback. Such life-size 3D models were manufactured from computed tomography scans of three hip joints in two patients. The first patient had undergone multiple previous hip arthroplasties for bilateral hip infections, resulting in right-sided pelvic discontinuity and a severe left-sided posterosuperior acetabular deficiency. The second patient had a first-stage revision for infection and recurrent dislocations. Specific metal reduction protocols were used to reduce artefact. The images were imported into Materialise MIMICS 14.12®. The models were manufactured using selective laser sintering. Accurate templating was performed preoperatively. Acetabular cup, augment, buttress, and cage sizes were trialled using the models, before being adjusted, and resterilised, enhancing the preoperative decision-making process. Screw trajectory simulation was carried out, reducing the risk of neurovascular injury. With 3D printing technology, complex pelvic deformities were better evaluated and treated with improved precision. Life-size models allowed accurate surgical simulation, thus improving anatomical appreciation and preoperative planning. The accuracy and cost-effectiveness of the technique should prove invaluable as a tool to aid clinical practice.

Digital Design and 3D Printing of Aortic Arch Reconstruction in HLHS for Surgical Simulation and Training

2018 ◽  
Vol 9 (4) ◽  
pp. 454-458 ◽  
Author(s):  
Sarah A. Chen ◽  
Chin Siang Ong ◽  
Nagina Malguria ◽  
Luca A. Vricella ◽  
Juan R. Garcia ◽  
...  
Keyword(s):  
3D Printing ◽  
Aortic Arch ◽  
Surgical Simulation ◽  
Three Dimensional ◽  
3D Models ◽  
Digital Design ◽  
Patient Specific ◽  
Aortic Arch Reconstruction ◽  
Arch Reconstruction ◽  
And Training

Purpose: Patients with hypoplastic left heart syndrome (HLHS) present a diverse spectrum of aortic arch morphology. Suboptimal geometry of the reconstructed aortic arch may result from inappropriate size and shape of an implanted patch and may be associated with poor outcomes. Meanwhile, advances in diagnostic imaging, computer-aided design, and three-dimensional (3D) printing technology have enabled the creation of 3D models. The purpose of this study is to create a surgical simulation and training model for aortic arch reconstruction. Description: Specialized segmentation software was used to isolate aortic arch anatomy from HLHS computed tomography scan images to create digital 3D models. Three-dimensional modeling software was used to modify the exported segmented models and digitally design printable customized patches that were optimally sized for arch reconstruction. Evaluation: Life-sized models of HLHS aortic arch anatomy and a digitally derived customized patch were 3D printed to allow simulation of surgical suturing and reconstruction. The patient-specific customized patch was successfully used for surgical simulation. Conclusions: Feasibility of digital design and 3D printing of patient-specific patches for aortic arch reconstruction has been demonstrated. The technology facilitates surgical simulation. Surgical training that leads to an understanding of optimal aortic patch geometry is one element that may potentially influence outcomes for patients with HLHS.

DOZ047.72: Three-dimensional printing for preoperative planning of open laryngotracheal surgery

2019 ◽  
Vol 32 (Supplement_1) ◽  
Author(s):  
G Fishman ◽  
O Wasserzug ◽  
P Berman ◽  
E Golden ◽  
A DeRow
Keyword(s):  
3D Printing ◽  
Preoperative Planning ◽  
Medical Center ◽  
Cricoid Cartilage ◽  
Three Dimensional ◽  
Balloon Dilation ◽  
3D Models ◽  
Subglottic Stenosis ◽  
Preliminary Results

Abstract Background Three-dimensional (3D) printing is being employed in a variety of surgical specialties to improve patient care. These models enable preoperative in vitro planning, advanced resident training, and better patient education. 3D models of the tracheobronchial tree that can simulate bronchoscopy and 3D printed cricoid cartilage models for balloon dilation training have been reported. A 3D model for preoperative planning of open laryngotracheal surgery has not been reported. Objectives The objective of this study was to report preliminary results with the employment of 3D printing technology for preoperative planning of laryngotracheoplasty (LTP) and cricotracheal resection (CTR). Materials and Methods Actual-size 3D models of the upper airway, from the level of the base of tongue to the level of the carina, have been created by the surgical 3D printing lab in the medical center. The models were based on computed tomography of two patients who were scheduled for LTP and CTR. The models were composed of several elements: the framework of the larynx and the trachea, the air column, the cannula, and the peri-stomal region. Results Two models were created, a model of a patient with grade III subglottic stenosis who subsequently underwent LTP and a model of a patient with grade IV subglottic stenosis who subsequently underwent CTR and end to end anastomosis. The 3D models were found to be useful for preoperative planning of the incision site in the trachea, the status of the tracheal and laryngeal framework, the length of the diseased segment, and the length of the rib cartilage graft to be harvested. Conclusions The preliminary results of this study imply that 3D models can be useful for preoperative planning of open laryngotracheal surgery. Further experience is required to establish its efficacy, the optimal model design, and cost effectiveness.

scholarly journals Personalized Surgical Planning – The Use of 3D Printing in Oncological Pathology

2018 ◽  
Vol 1 (Supplement) ◽  
pp. 40
Author(s):  
E. Liciu ◽  
B. Frumuşeanu ◽  
B.M. Popescu ◽  
D.C. Florea ◽  
L. Niculescu ◽  
...  
Keyword(s):  
3D Printing ◽  
Neoadjuvant Chemotherapy ◽  
Surgical Planning ◽  
Preoperative Planning ◽  
Surgical Simulation ◽  
Malignant Tumors ◽  
Surgical Removal ◽  
Orthopedic Surgeons ◽  
3D Printed ◽  
Children And Young Adults

Abstract Introduction. Among the cases of malignant tumors, gathering 30% of them, the most frequent is the osteosarcoma. It occurs especially in children and young adults, the mean age being 14 years old. The treatment consists initially in neoadjuvant chemotherapy, followed by the surgical removal of the tumor. Due to aggressive malignant features (rapid increase in size, tendency to invade surrounding tissues, variable location), in multiple cases, the surgical treatment of osteosarcoma becomes a true challenge. Materials and methods. Nowadays, it is possible to create 3D printed models, by using CT and MRI, which are superior to the 3D graphical reconstructions. The 3D printing technique facilitates the production of these 1:1 scale printed models that faithfully embody the patient’s particular features concerning the anatomic pathology. The benefits gained from using such a modern tool allow the orthopedic surgeons to establish the measurements of a precise resection and to simulate the surgical maneuvers, as part of an elaborated modern surgical planning. Results. In this article, we presented the case of a 10-year-old patient diagnosed with femoral osteosarcoma and treated with neoadjuvant chemotherapy followed by GMRS surgical approach based on a preoperative planning involving a 3D printed model. This piece was used to provide precise information regarding the tumor, to allow preoperative measurements and a surgical simulation. Conclusion. The surgical accuracy can be increased by using a personalized preoperative planning based on a 3D printed model, leading to a lower rate of long/ short-term complications, recurrences, or metastases.

Is Preoperative Planning for Hip Surgery Using Three-Dimensional Printed Models Associated with Improved Intra- and Postoperative Outcomes? A Systematic Review

2019 ◽  
Vol 03 (03) ◽  
pp. 151-160
Author(s):  
Michael J. Mosca ◽  
Pablo Castañeda
Keyword(s):  
3D Printing ◽  
Clinical Outcomes ◽  
Preoperative Planning ◽  
Three Dimensional ◽  
Postoperative Outcomes ◽  
Hip Surgery ◽  
Patient Specific ◽  
Original Research ◽  
Surgical Guides ◽  
3D Printed

AbstractUse of three-dimensional (3D) printed models for preoperative planning, patient-specific surgical guides, and implants in orthopaedic surgery is a burgeoning technology. It has not been established if 3D-printed models for preoperative planning are associated with improved clinical outcomes or if they are cost-effective for hip surgeries including total hip arthroplasty (THA), periacetabular osteotomy (PAO), proximal femoral osteotomy (PFO), and/or hip fractures. The purpose of this study was to conduct a systematic search and literature review to determine if preoperative planning for hip surgery using 3D-printed models was associated with improved intra- and postoperative outcomes. Specific aims were to determine the (1) types of applications and studies conducted, (2) types of 3D printing/materials used, (3) specific outcomes evaluated, (4) efficacy of 3D printing in planning for hip surgery, and (5) limitations of current research. The authors searched Medline, Embase, Cochrane Database of Systematic Reviews, CINAHL, and PubMed from inception through July 2017. Original research publications were included if the primary purpose was to evaluate 3D-printed models' ability to assist with the planning of hip surgeries. Papers were excluded if they were reviews, abstracts, and not available in English, their models were not patient-specific, or their research did not evaluate surgery of the acetabulofemoral joint or pelvis. Of the 3,369 unique papers identified, 21 met inclusion criteria after full-text review. Among the included studies, six evaluated 3D printing in THA, seven in PAO/PFO, and eight in fracture repairs/reconstruction. The research included nine case reports, three case series, one retrospective uncontrolled study, six prospective uncontrolled studies, and two prospective controlled studies. 3D printed models resulted in: reduced intraoperative improvisation, operating room time, blood loss/transfusions, improved positioning of plates/screws/implants, clinical scores, measures of realignment, and functional status. Recent innovations in 3D printing are promising but unproven to improve clinical outcomes in hip surgeries due to limitations of published research. This may impact utilization and reimbursement of 3D-printed models in hip surgery. Studies of resource utilization, cost-effectiveness, and controlled trials with standardized methods and clinical outcomes of relevance are needed.

3D PRINTING FOR PREOPERATIVE PLANNING AND SURGICAL SIMULATION OF VAD IMPLANTATION IN A FAILING RIGHT SYSTEMIC VENTRICLE

2018 ◽  
Vol 71 (11) ◽  
pp. A545 ◽  
Author(s):  
Jacob Miller ◽  
Joseph Billadello ◽  
Rachel Simon-Lee ◽  
Monica Sharma ◽  
Gautam Singh ◽  
...  
Keyword(s):  
3D Printing ◽  
Preoperative Planning ◽  
Surgical Simulation ◽  
Systemic Ventricle

scholarly journals Overview of In-Hospital 3D Printing and Practical Applications in Hand Surgery

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Marco Keller ◽  
Alissa Guebeli ◽  
Florian Thieringer ◽  
Philipp Honigmann
Keyword(s):  
3D Printing ◽  
Preoperative Planning ◽  
Three Dimensional ◽  
Hand Surgery ◽  
Practical Experience ◽  
Practical Applications ◽  
Clinical Endpoints ◽  
Surgical Guides ◽  
Patient’S Outcome ◽  
High Level

Three-dimensional (3D) printing is spreading in hand surgery. There is an increasing number of practical applications like the training of junior hand surgeons, patient education, preoperative planning, and 3D printing of customized casts, customized surgical guides, implants, and prostheses. Some high-quality studies highlight the value for surgeons, but there is still a lack of high-level evidence for improved clinical endpoints and hence actual impact on the patient’s outcome. This article provides an overview over the latest applications of 3D printing in hand surgery and practical experience of implementing them into daily clinical routine.

scholarly journals Three-dimensional printing simulated operation combined with robot-aided minimally invasive lumbopelvic fixation in treatment of unstable bilateral sacral fractures: technical notes and 8 case series

2020 ◽  
Author(s):  
Zhaojie liu ◽  
Wei Tian ◽  
Xin Jin ◽  
Haotian Qi ◽  
Yuxi Sun ◽  
...  
Keyword(s):  
3D Printing ◽  
Minimally Invasive ◽  
Preoperative Planning ◽  
Three Dimensional ◽  
Case Series ◽  
Fluoroscopy Time ◽  
Type I ◽  
Sacral Fractures ◽  
Lumbopelvic Fixation ◽  
Sacroiliac Screw Fixation

Abstract Background Despite their seldom appearance, unstable bilateral sacral fractures are severe injuries and always cause surgical management difficulties. Lumbopelvic fixation is reliable for rigid method, but wound-related complications with open procedure have been relatively common. Methods Data of 8 patients with unstable bilateral sacral fractures who were treated surgically in our institution from March 2016 to April 2019 were retrospectively analyzed. There were 5 men and 3 women with an average age of 38.5 years (range, 19-60years). According to the sharp of sacral fractures, there were one case with simple bilateral vertical fracture lines, 6 cases with “U” and one case with “H”. According to Roy-Camille classification, 7 of 8 sacral fractures involving sacral canal were classified with type I 2 cases, type II 4 cases and type III 1 case. Three-dimensional(3D) printing pelvis were performed to simulate lumbopelvic and sacroiliac screw fixation for preoperative planning. Eight bilateral sacral fractures were treated with minimally invasive lumbopelvic fixation under robotic guidance. Results The screws inserted with robotic assistance were exposed to radiation with an average of 41.6±10.2 times (range, 27–53 times) intraoperatively. The total fluoroscopy time was 32–59 s, and the average fluoroscopy time for each screw was 4.2±0.6s. According to modified Gras classification of screw position, there were Grade I in 7 cases and Grade II in one case (left S1 screw). The average operation time was 150.6 min (range, 95-220 min), and intraoperative blood loss was 87.5 ml (range, 60-120 ml). Eight patients were followed up consecutively for at least 12 months, with an average of 17.0 months (range, 12–24months). No patient suffered a neurovascular injury intraoperatively. There were no incision-related complications. All fractures healed with an average time of 4.2 months (range, 3–10 months). According to Majeed functional assessment investigation, the mean score was 88.4 points (range, 78–98 points), which were graded as follows: 5, excellent and 3, good. Conclusion Under robot guidance, minimally invasive lumbopelvic fixation for unstable bilateral sacral fractures is a feasible option with the advantages of accuracy, less radiation and safety. Simulated operation with 3D printing for preoperative planning can simplify the actual surgery.

scholarly journals Application of 3D-printing in the process of treating cerebral aneurysms affecting the intracranial arterial circle

2019 ◽  
Author(s):  
Biccari Elia ◽  
Castellani Alessandro ◽  
Costantini Giacomo ◽  
Fiacca Andrea ◽  
Piergentini Marco
Keyword(s):  
3D Printing ◽  
Preoperative Planning ◽  
Three Dimensional ◽  
Cerebral Aneurysms ◽  
Resonance Imaging ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
3D Sequence ◽  
Magnetic Resonance Imaging Mri ◽  
Do So

In this study we wanted to analyse how additive manufacturing could bring benefit to the treatment of intracranial aneurysms. To be able to do so we segmented Magnetic Resonance Imaging (MRI) images, specifically we used images from a Time-Of-Flight (TOF) 3D sequence. Once we obtained the virtual three-dimensional model from the diagnostic images, we proceeded to create a physical model through 3D-printing that was later used by the surgeon for a preoperative planning.

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