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Virtual surgery

Q Xiu, X Chen, T Liu, M X Chen, P Yao, W H Xin
Post-intubation tracheal stenosis was a late time complication after tracheotomy but the happening of dyspnea was unusual. Diagnosing tracheal stenosis after incubation, and figuring out the location and causes of the stenosis were important. Treatment of post-incubation tracheal stenosis relied on accurate diagnosis of the type of tracheal stenosis. Computed tomography (CT) and laryngoscope could be used for detecting the stenosis but not enough. Two patients who were already under the urgent tracheotomy over 1 year were reported...
October 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
L Peng, Z H Wang, Y C Sun, W Qu, Y Han, Y H Liang
OBJECTIVE: To establish an apicoectomy guide template design and manufacturing method, based on multi-source data fusion, computer aided design (CAD) and fused deposition modeling (FDM). The feasibility of the guide template was preliminary evaluated by the in vitro model experiment. METHODS: An extracted upper anterior tooth, after root canal treatment, was optical scanned, after which the extracted upper anterior tooth was poured in an apicoectomy plaster model...
October 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Yary Volpe, Rocco Furferi, Lapo Governi, Francesca Uccheddu, Monica Carfagni, Federico Mussa, Mirko Scagnet, Lorenzo Genitori
BACKGROUND AND OBJECTIVE: The purpose of the present paper is to pave the road to the systematic optimization of complex craniofacial surgical intervention and to validate a design methodology for the virtual surgery and the fabrication of cranium vault custom plates. Recent advances in the field of medical imaging, image processing and additive manufacturing (AM) have led to new insights in several medical applications. The engineered combination of medical actions and 3D processing steps, foster the optimization of the intervention in terms of operative time and number of sessions needed...
October 2018: Computer Methods and Programs in Biomedicine
Yaoyu Fu, Lora Cavuoto, Di Qi, Karthikeyan Panneerselvam, Gene Yang, Venkata Sreekanth Artikala, Andinet Enquobahrie, Suvranu De, Steven D Schwaitzberg
BACKGROUND: Intracorporeal suturing is one of the most important and difficult procedures in laparoscopic surgery. Practicing on a FLS trainer box is effective but requires large number of consumables, and the scoring is somewhat subjective and not immediate. A virtual basic laparoscopic skill trainer (VBLaST©) was developed to simulate the five tasks of the FLS Trainer Box. The purpose of this study is to evaluate the face and content validity of the VBLaST suturing simulator (VBLaST-SS©)...
October 17, 2018: Surgical Endoscopy
Mona W Schmidt, Karl-Friedrich Kowalewski, Marc L Schmidt, Erica Wennberg, Carly R Garrow, Sang Paik, Laura Benner, Marlies P Schijven, Beat P Müller-Stich, Felix Nickel
INTRODUCTION: Virtual reality (VR-)trainers are well integrated in laparoscopic surgical training. However, objective feedback is often provided in the form of single parameters, e.g., time or number of movements, making comparisons and evaluation of trainees' overall performance difficult. Therefore, a new standard for reporting outcome data is highly needed. The aim of this study was to create a weighted, expert-based composite score, to offer simple and direct evaluation of laparoscopic performance on common VR-trainers...
October 16, 2018: Surgical Endoscopy
M E H Wagner, H Essig, M Rücker, T Gander
BACKGROUND: In complex orbital reconstructions ideal positioning of the bony buttress and surrounding soft tissue is a prerequisite for an aesthetic and functional result. The use of computer-assisted surgery can support the surgeon before and during the reconstruction procedure and facilitate quality control processes. This is illustrated using three clinical examples. MATERIAL AND METHODS: The areas of interest (bony defect areas, surrounding tissues) are segmented in a 3D image series...
October 16, 2018: HNO
I A Fernandes, G M de Souza, M L P Pinheiro, S G M Falci
This systematic review aimed to answer the following PICO question: Does the intramuscular injection of dexamethasone result in less pain, swelling, and trismus after mandibular third molar removal when compared to other routes of administration or a control group (saline solution injection or no treatment)? An electronic search was conducted in Virtual Health Library, PubMed, and Web of Science, through March 2018. Eligibility criteria included clinical trials. The search strategy resulted in 331 studies. Following the selection process, 15 articles were included in the systematic review; eight of these were included in the meta-analysis...
October 13, 2018: International Journal of Oral and Maxillofacial Surgery
Do Hyun Kim, Yeonji Kim, Jae-Sung Park, Sung Won Kim
Endoscopic sinus and skull base surgeries are minimally invasive surgical techniques that reduce postoperative symptoms and complications and enhance patients' quality of life. However, to ensure excellent surgical outcomes after such interventions, intimate familiarity with important landmarks and high-level endoscope manipulation skills are essential. Cadaver training is one possible option, but cadavers are expensive, scarce, and nonreusable and cadaver work requires specialized equipment and staff. In addition, it is difficult to mimic specific diseases using cadavers...
October 18, 2018: Clinical and Experimental Otorhinolaryngology
Venkata Arikatla, Sam Horvath, Yaoyu Fu, Lora Cavuoto, Suvranu De, Steve Schwaitzberg, Andinet Enquobahrie
BACKGROUND: The fundamentals of laparoscopic surgery (FLS) trainer box, which is now established as a standard for evaluating minimally invasive surgical skills, consists of five tasks: peg transfer, pattern cutting, ligation, intra- and extracorporeal suturing. Virtual simulators of these tasks have been developed and validated as part of the Virtual Basic Laparoscopic Skill Trainer (VBLaST) (Arikatla et al. in Int J Med Robot Comput Assist Surg 10:344-355, 2014; Zhang et al. in Surg Endosc 27(10):3603-3615, 2013; Sankaranarayanan et al...
October 15, 2018: Surgical Endoscopy
Ferdinand Köckerling
Introduction: In hernia surgery, too, the influence of the surgeon on the outcome can be demonstrated. Therefore the role of the learning curve, supervised procedures by surgeons in training, simulation-based training courses and surgeon volume on patient outcome must be identified. Materials and Methods: A systematic search of the available literature was carried out in June 2018 using Medline, PubMed, and the Cochrane Library. For the present analysis 81 publications were identified as relevant. Results: Well-structured simulation-based training courses was found to be associated with a reduced perioperative complication rate for patients operated on by trainees...
2018: Frontiers in Surgery
Daniel R Obaid, David Smith, Michael Gilbert, Saeed Ashraf, Alexander Chase
BACKGROUND: We evaluated the utility of the HeartNavigator III software (Philips Healthcare, Netherlands) to create a patient specific three-dimensional model using ECG-gated CT images to plan Transcatheter Aortic Valve Replacement (TAVR) in a patient with previous Starr-Edwards mitral prosthesis. METHODS: A patient with a previous Starr-Edwards mitral prosthesis considered too high risk for conventional surgery required TAVR. It was uncertain whether this would be possible whilst avoiding the complication of the aortic prosthesis interacting with the high-profile Starr-Edwards cage and ball valve mechanism...
October 9, 2018: Journal of Cardiovascular Computed Tomography
Emad Matanes, Roy Lauterbach, Sari Boulus, Amnon Amit, Lior Lowenstein
Robotic laparoendoscopic single-site (R-LESS) seems to be the next route in advancing minimal invasive surgery, with the potential for better cosmetic results and reduced patient morbidity compared with multi-port surgery. This review describes the history and development of (R-LESS) gynecologic surgery and outlines the latest advancements in the realm of gynecology. The review was conducted according to the PRISMA guidelines. Pubmed and ( were the main search engines utilized for retrieval of study data (1990 - present)...
October 3, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
R Bosc, A Fitoussi, B Hersant, T-H Dao, J-P Meningaud
Although the term augmented reality appears increasingly in published studies, the real-time, image-guided (so-called 'hands-free' and 'heads-up') surgery techniques are often confused with other virtual imaging procedures. A systematic review of the literature was conducted to classify augmented reality applications in the fields of maxillofacial surgery. Publications containing the terms 'augmented reality', 'hybrid reality', and 'surgery' were sought through a search of three medical databases, covering the years 1995-2018...
October 10, 2018: International Journal of Oral and Maxillofacial Surgery
Artur Ludwin, Inga Ludwin, Bala Bhagavath, Wellington P Martins, Steven R Lindheim
OBJECTIVES: To demonstrate the hymen-sparing management of a blind hemivagina in obstructed hemivagina and ipsilateral renal anomaly (OHVIRA) syndrome with the use of transrectal ultrasound (TRUS)-guided vaginoscopic septoplasty supported by pre- and postoperative diagnostics with the use of a novel ultrasound technique: 3-dimensional saline-solution infusion contrast sonovaginocervicography (3D-SVC) with virtual speculoscopy. DESIGN: Video presentation of surgical and ultrasound techniques...
October 2018: Fertility and Sterility
Greg T Bishop, Brian A Evans, Krystal L Kyle, Lori R Kogan
OBJECTIVE To evaluate owner satisfaction with a home-based, synchronous videoconferencing telemedicine application as an alternative to in-clinic appointments for conducting recheck examinations after surgical sterilization in dogs. DESIGN Randomized controlled clinical trial. ANIMALS 30 client-owned dogs undergoing elective surgical sterilization and postsurgical recheck examination between September 27, 2017, and February 23, 2018. PROCEDURES Dogs were randomly assigned to have their recheck examinations performed remotely (the telemedicine group) or at the veterinary clinic (the control group)...
November 1, 2018: Journal of the American Veterinary Medical Association
Jitsuo Usuda
Recently small peripheral lesions have been discovered due to development of computed tomography (CT) instruments and dissemination of CT examination etc. Histological or cytological diagnosis for peripheral lesions is recommended to be performed. The diagnostic yield for peripheral pulmonary lesion depends on the size. Transbronchial lung biopsy (TBLB) was developed using techniques such as navigation system( vitual bronchoscopic navigation:VBN), endobronchial ultrasonography(EBUS) using guide sheath(GS), extremely small bronchoscope and the like for lesions of 2...
September 2018: Kyobu Geka. the Japanese Journal of Thoracic Surgery
Young Park, Hitoshi Yokoyama
Dr. William Halsted started residency-based surgical training at Johns Hopkins University in 1889. On the job training(OnJT) conducted there is an in-hospital training that residents imitate what senior doctors are doing with their patients. [ See one, do one, teach one] is the word briefly expressing this traditional training. Since then all surgeons learned surgery from the mentors and senior doctors in this way. In this OnJT, surgeons spent many years and years and accumulated experience and tried to crime up step by step from beginners to experts...
September 2018: Kyobu Geka. the Japanese Journal of Thoracic Surgery
Shaolong Kuang, Yucun Tang, Andi Lin, Shumei Yu, Lining Sun
Cooperation between surgeon and robot is one of the key technologies that limit the robot to be widely used in orthopedic clinics. In this study, the evolution of human-robot cooperation methods and the control strategies for typical human-robot cooperation in robot-assisted orthopedics surgery were reviewed at first. Then an intelligent admittance control method, which combines the fuzzy model reference learning control with the virtual constraint control, is proposed to solve the requirements of intuitive human-robot interaction during orthopedics surgery...
2018: Advances in Experimental Medicine and Biology
Guoyan Zheng, Lutz-P Nolte
Introduced more than two decades ago, computer-aided orthopaedic surgery (CAOS) has emerged as a new and independent area, due to the importance of treatment of musculoskeletal diseases in orthopaedics and traumatology, increasing availability of different imaging modalities and advances in analytics and navigation tools. The aim of this chapter is to present the basic elements of CAOS devices and to review state-of-the-art examples of different imaging modalities used to create the virtual representations, of different position tracking devices for navigation systems, of different surgical robots, of different methods for registration and referencing, and of CAOS modules that have been realized for different surgical procedures...
2018: Advances in Experimental Medicine and Biology
Bengt Karlsson, Hidefumi Jokura, Huai-Che Yang, Masaaki Yamamoto, Roberto Martinez, Jun Kawagishi, Wan-Yuo Guo, Guus Beute, David H C Pan, Hitoshi Aiyama, Wen-Yuh Chung, Michael Söderman, Tseng Tsai Yeo
BACKGROUND: The optimal management of unruptured brain arteriovenous malformations (AVMs) is controversial after the ARUBA trial. OBJECTIVE: To confirm or repudiate the ARUBA conclusion that "medical management only is superior to medical management with interventional therapy for unruptured brain arteriovenous malformations." METHODS: Data were collected from 1351 patients treated with Gamma Knife Surgery (GKS; Elekta AB, Stockholm, Sweden) for unruptured and untreated AVMs The follow-up was 8817 yr (median 5...
October 8, 2018: Neurosurgery
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