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Virtual surgery

Egui Zhu, Uno Fors, Åsa Smedberg
BACKGROUND: One component of the 2009 Chinese health care reform plan is to train general practitioners to improve the delivery of primary care services. This continuing professional development is expected to further improve the physicians' competencies to be general practitioners in primary care. Augmented reality-a combination of virtual information and the real environment-may enhance general practitioners' continuing professional development by allowing their learning experiences to overlap with their workplace practice...
2018: PloS One
Xiu-Ping Zhang, Xu-Biao Wei, Zhen-Hua Chen, Shu-Qun Cheng
No abstract text is available yet for this article.
August 14, 2018: Annals of Surgery
B Bouchet, G Raoul, M Julieron, T Wojcik
INTRODUCTION: Mandibular reconstruction using fibula free flap has been improved in the last decade with computer-aided design and computer-aided manufacturing (CAD/CAM) but any functional and aesthetic evaluation of their reattempts has been realized. Aim of this retrospective study is to compare functional and morphologic outcomes after mandibular reconstruction with fibula free flap using CAD/CAM or conventional per operative shaping for mandible reconstruction. Moreover, we compared quality of life, patient and surgery characteristics in the two groups...
August 8, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
Xiaojun Chen, Pengjie Sun, Denghong Liao
PURPOSE: In the dental implant surgery, there are inevitable risks due to the anatomically complex operation in the cranio-maxillofacial region. Therefore, there is a trend to use computer-aided technology to simulate the process of the implant surgery. In this study, we present a haptic simulator for trainees to study and rehearse the drilling performance of dental implant surgery. MATERIALS AND METHODS: The dental implant surgery simulator (DISS) is developed based on the haptic force-feedback device Omega...
August 10, 2018: International Journal of Computer Assisted Radiology and Surgery
Jennifer Steiman, Sarah A Sullivan, John Scarborough, Lee Wilke, Carla Pugh, Richard H Bell, K Craig Kent
OBJECTIVE: To assess competency in surgical residents with bundled assessments using a surgical entrustable professional activity (SEPA) framework. DESIGN: A pilot study was conducted using a combination of validated assessment tools (multiple choice exam (MCE) questions from the Surgical Council on Resident Education [SCORE], the Clinical Assessment and Management Examination - Outpatient (CAMEO) form, the Virtual Surgical Patient (VSP) website, and a procedure-specific Operative Performance Rating System [OPRS]) to determine competency in surgical residents in the treatment of breast cancer and gallbladder disease, respectively...
August 7, 2018: Journal of Surgical Education
Dimitrios Kloukos, Piotr Fudalej, Patrick Sequeira-Byron, Christos Katsaros
BACKGROUND: Cleft lip and palate is one of the most common birth defects and can cause difficulties with feeding, speech and hearing, as well as psychosocial problems. Treatment of orofacial clefts is prolonged; it typically commences after birth and lasts until the child reaches adulthood or even into adulthood. Residual deformities, functional disturbances, or both, are frequently seen in adults with a repaired cleft. Conventional orthognathic surgery, such as Le Fort I osteotomy, is often performed for the correction of maxillary hypoplasia...
August 10, 2018: Cochrane Database of Systematic Reviews
David R Rutkowski, Scott B Reeder, Luis A Fernandez, Alejandro Roldán-Alzate
This study used magnetic resonance imaging (MRI), computational fluid dynamics (CFD) modeling, and in vitro experiments to predict patient-specific alterations in hepatic hemodynamics in response to partial hepatectomy in living liver donors. 4D Flow MRI was performed on three donors before and after hepatectomy and models of the portal venous system were created. Virtual surgery was performed to simulate (1) surgical resection and (2) post-surgery vessel dilation. CFD simulations were conducted using in vivo flow data for boundary conditions...
2018: Computer Methods in Biomechanics and Biomedical Engineering. Imaging & Visualization
Octavio Cintra, Simonas Grybauskas, Carlos Jorge Vogel, Dalia Latkauskiene, Nilo Alves Gama
Dentofacial deformities usually are surgically treated, and 3D virtual planning has been used to favor accurate outcomes. Cases reported in the present article show that orthognathic surgery carried out to correct facial asymmetries does not comprise only one treatment protocol. 3D virtual planning might be used for surgical planning, but it should also be used to diagnose the deformity, thus allowing for an analysis of the best-recommended possibilities for the orthodontic preparation that suits each individual case...
May 2018: Dental Press Journal of Orthodontics
Juan Fernando Aristizábal, Rosana Martínez-Smit, Cristian Díaz, Valfrido Antonio Pereira Filho
It is possible to unify three-dimensional customized orthodontic techniques and three-dimensional surgical technology. In this case report, it is introduced a treatment scheme consisting of passive self-ligation customized brackets and virtual surgical planning combined with the orthognathic surgery-first approach in a Class III malocclusion patient. Excellent facial and occlusal outcomes were obtained in a reduced treatment time of five months.
May 2018: Dental Press Journal of Orthodontics
Yifan Guo, Joseph Lopez, Robin Yang, Alexandra Macmillan, Amir H Dorafshar
Facial skeletal reconstruction of patients with severe Treacher Collins syndrome (TCS) requires correction of both midface and mandibular deficiencies. Implementing virtual surgical planning can provide an accurate three-dimensional analysis of craniofacial abnormalities, creating calvarial donors that match the anatomy of the desired malar augmentation and facilitating bimaxillary movements, positioning, and fixation in orthognathic surgery. We present a case of an 18-year-old patient with TCS, who underwent staged zygomaticomaxillary reconstruction and double-jaw osteotomy with sliding genioplasty, using computer-assisted surgical planning...
September 2018: Craniomaxillofacial Trauma & Reconstruction
Evelien M Overtoom, Tim Horeman, Frank-Willem Jansen, Jenny Dankelman, Henk W R Schreuder
OBJECTIVES: To provide a systematic overview of the literature assessing the value of haptic and force feedback in current simulators teaching laparoscopic surgical skills. DATA SOURCES: The databases of Pubmed, Cochrane, Embase, Web of Science, and Google Scholar were searched to retrieve relevant studies published until January 31st, 2017. The search included laparoscopic surgery, simulation, and haptic or force feedback and all relevant synonyms. METHODS: Duplicates were removed, and titles and abstracts screened...
August 4, 2018: Journal of Surgical Education
E Shaheen, S Shujaat, T Saeed, R Jacobs, C Politis
The purpose of the study was to propose and validate a three-dimensional (3D) tool for the assessment of orthognathic surgery planning accuracy and postoperative follow-up. A total of 15 patients (four male, 11 female; mean age 29.6 years) with skeletal class II and III, who underwent bimaxillary surgery were recruited for the study. All patients had preoperative computed tomography (CT), and cone-beam computerized tomography (CBCT) scans 1-6 weeks and 6 months postoperatively. The data was exported to a customized stepwise module developed in Amira software resulting in the accuracy being presented as translational and rotational differences between the planning and the actual outcome...
August 3, 2018: International Journal of Oral and Maxillofacial Surgery
Samantha G Maliha, J Rodrigo Diaz-Siso, Natalie M Plana, Andrea Torroni, Roberto L Flores
PURPOSE: Surgical residencies have increasingly incorporated both digital and mannequin simulation into their training programs. The aim of our review was to identify all digital and mannequin maxillofacial simulators available for education and training, highlight their benefit, and critically assess the evidence in support of these educational resources. MATERIALS AND METHODS: We performed a comprehensive literature review of all peer-reviewed publications of digital and mannequin simulators that met the inclusion criteria, defined as any simulator used in education or training...
August 3, 2018: Journal of Oral and Maxillofacial Surgery
Ryan A Moore, Kyle W Riggs, Soultana Kourtidou, Kristen Schneider, Nicholas Szugye, Weston Troja, Gavin D'Souza, Mantosh Rattan, Roosevelt Bryant, Michael D Taylor, David L S Morales
Complex unrepaired congenital heart disease requires extensive planning to determine the optimal procedural approach. Conventional noninvasive diagnostic imaging initially provides only two-dimensional (2D) representations of the complex, three-dimensional cardiovascular anatomy. With the expansion of 3D visualization techniques in imaging, a paradigm shift has occurred in complex congenital heart disease surgical planning using digital and 3D printed heart models. There has been early success in demonstrating the benefit of these models in interdisciplinary communication and education...
August 6, 2018: Birth Defects Research
Anurup Ganguli, Gelson J Pagan-Diaz, Lauren Grant, Caroline Cvetkovic, Mathew Bramlet, John Vozenilek, Thenkurussi Kesavadas, Rashid Bashir
Surgeons typically rely on their past training and experiences as well as visual aids from medical imaging techniques such as magnetic resonance imaging (MRI) or computed tomography (CT) for the planning of surgical processes. Often, due to the anatomical complexity of the surgery site, two dimensional or virtual images are not sufficient to successfully convey the structural details. For such scenarios, a 3D printed model of the patient's anatomy enables personalized preoperative planning. This paper reviews critical aspects of 3D printing for preoperative planning and surgical training, starting with an overview of the process-flow and 3D printing techniques, followed by their applications spanning across multiple organ systems in the human body...
August 4, 2018: Biomedical Microdevices
Peter A J Pijpker, Jos M A Kuijlen, Joep Kraeima, Chris Faber
OBJECTIVE: To describe the use of 3D virtual planning and 3D printed patient specific osteotomy templates in the surgical correction of a complex spinal deformity. BACKGROUND: Pedicle subtraction osteotomies (PSO) for the correction of severe spinal deformities are technically demanding procedures with risk for major complications. Especially operations of the severely deformed spine call for new, more precise, methods of surgical planning. The new 3D technology can give rise to new possibilities for the surgical planning of spinal deformities...
August 1, 2018: World Neurosurgery
Yu-Fang Liao, Shu Hsien Lo
The aims of this study were to establish guidelines for the surgical occlusion setup of surgery-first orthognathic surgery, and evaluate the resulting characteristics and accuracy. Skeletal Class III patients (N = 53) underwent Le Fort I osteotomy and bilateral sagittal split osteotomy. Study models before orthognathic surgery were set according to the guidelines. Occlusion was measured and computer-aided surgical simulation was used to evaluate the characteristics and accuracy of the surgical occlusion...
August 3, 2018: Scientific Reports
L Mark Knab, Mazen S Zenati, Anton Khodakov, Maryjoe Rice, Amr Al-Abbas, David L Bartlett, Amer H Zureikat, Herbert J Zeh, Melissa E Hogg
BACKGROUND: Robotic surgery is increasingly being used for complex oncologic operations, although currently there is no standardized curriculum in place for surgical oncologists. We describe the evolution of a proficiency-based robotic training program implemented for surgical oncology fellows, and demonstrate the outcomes of the program. METHODS: A 5-step robotic curriculum began integration in July 2013. Fellows from July 2013 to August 2017 were included. An education portfolio was created for each fellow, including pre-fellowship experience, fellowship experience with data from robotic curriculum and operative experience, and post-fellowship practice information...
August 2, 2018: Annals of Surgical Oncology
Darshan D Ruikar, Ravindra S Hegadi, K C Santosh
Precise simulators can replicate complete understanding of the models. In this survey, we focus on orthopedic simulators that are not only in replicating real-world models but also in educating with complete procedure: surgical, for instance. It covers 18 hip replacement, three-knee replacement, three facial surgeries, one spine surgery and six orthopedic psycho-motor skills training and assessment-based simulators. We also provide comparative studies and highlight current trends and possible challenges. We observed that orthopedic training methodologies have undergone a paradigm shift...
August 2, 2018: Journal of Medical Systems
George Daskalakis, Diamantis Diamantopoulos, Mariana Theodora, Anysia Semertzidou, Kaliopi Pappa, Panagiotis Antsaklis, Mihail Sindos, Alexandros Rodolakis, Konstantinos Kalmantis
PURPOSE: To evaluate the tumor's volume and intratumoral vascularization with 3D vocal power Doppler ultrasound in patients with stage 1B1 cervical cancer. METHODS: This was a prospective study on patients with cervical cancer and stage 1B1 disease, which took place between 2012 and 2015. All women had an initial 2D ultrasound examination for the estimation of the tumor volume. Following this, 3D volumes of the cervix were acquired and were further analyzed using the Virtual Organ Computer Aided Analysis (VOCAL) program...
September 2018: Archives of Gynecology and Obstetrics
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