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Virtual surgical planning

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https://www.readbyqxmd.com/read/29330656/3d-imaging-3d-printing-and-3d-virtual-planning-in-endodontics
#1
REVIEW
Pratik Shah, B S Chong
The adoption and adaptation of recent advances in digital technology, such as three-dimensional (3D) printed objects and haptic simulators, in dentistry have influenced teaching and/or management of cases involving implant, craniofacial, maxillofacial, orthognathic and periodontal treatments. 3D printed models and guides may help operators plan and tackle complicated non-surgical and surgical endodontic treatment and may aid skill acquisition. Haptic simulators may assist in the development of competency in endodontic procedures through the acquisition of psycho-motor skills...
January 12, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29318365/-innovations-in-surgical-treatment-of-pediatric-solid-tumors
#2
REVIEW
A Schmidt, S W Warmann, C Urla, J Fuchs
The overall survival of children with solid tumors has shown a substantial increase in the past decades due to progress in all of the disciplines involved in the treatment. The poor prognosis for advanced stages of disease and the morbidity related to therapeutic procedures are still a challenge. Innovations in the surgical treatment of solid tumors can contribute to increase the survival rate of affected children and to decrease the treatment-related morbidity. Considering these aspects, the successful implementation of innovations is described based on four examples...
January 9, 2018: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/29304327/the-use-of-computer-aided-design-and-manufacturing-in-acute-mandibular-trauma-reconstruction
#3
George Kokosis, Edward H Davidson, Rachel Pedreira, Alexandra McMillan, Amir H Dorafshar
PURPOSE: Virtual surgical planning (VSP) with subsequent computer-aided design and manufacturing have proved efficacious in improving the efficiency and outcomes of a plethora of surgical modalities, including mandibular reconstruction and orthognathic surgery. PATIENTS AND METHODS: Five patients underwent complex mandibular reconstruction after traumatic injury using VSP from July 2016 to August 2017 at our institution. The Johns Hopkins University Hospital institutional review board approved the present study...
December 13, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29303857/reconstruction-of-a-compound-oromandibular-defect-by-means-of-chimeric-scapular-parascapular-free-flap-assisted-by-virtual-surgical-planning
#4
Josué Hernando, Antonio Aguilar-Salvatierra, Ignacio Osoitz Leizaola-Cardesa, Juan Antonio Rad, Amaya Vicuña, Rafael Gómez, Javier Martín, Gerardo Gómez-Moreno
BACKGROUND: Reconstruction of an oromandibular defect presents a considerable surgical challenge. But since the advent of microvascularized free flap reconstructive surgery, outcomes have improved significantly so that today almost any defect may be reconstructed. Recently, virtual surgical planning has reduced surgical time, the morbidity associated with surgery, and surgical precision. OBJECTIVE: This article reports a complex patient with a composite oromandibular defect...
January 4, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29275075/accuracy-of-computer-assisted-orthognathic-surgery
#5
Giacomo De Riu, Paola Ilaria Virdis, Silvio Mario Meloni, Aurea Lumbau, Luigi Angelo Vaira
INTRODUCTION: The purpose of this study was to retrospectively evaluate the difference between the planned and the actual movements of the jaws, using three-dimensional (3D) software for PC-assisted orthognathic surgery, to establish the accuracy of the procedure. MATERIAL AND METHODS: A retrospective study was performed with 49 patients who had undergone PC-guided bimaxillary surgery. The accuracy of the protocol was determined by comparing planned movements of the jaws with the actual surgical movements, analysing frontal and lateral cephalometries...
December 5, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29260271/reconstruction-of-mandibular-contour-using-individualized-high-density-porous-polyethylene-medpor%C3%A2-implants-under-the-guidance-of-virtual-surgical-planning-and-3d-printed-surgical-templates
#6
Yu Wang, Yiqun Zhang, Zhen Zhang, Xiang Li, Jianwei Pan, Jihua Li
BACKGROUND: The mandibular contour plays a significant role in the beautiful and youthful look but the reconstruction remains a challenging problem. The objective of this study was to evaluate the use of individualized high-density porous polyethylene (Medpor®) implants for comprehensive reconstruction of mandibular contour with the aid of computer-aided design/computer-aided manufacturing (CAD/CAM). METHODS: From 2010 to 2014, 12 patients with mandibular contour deformities were enrolled in our retrospective study...
December 19, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29250336/preoperative-planning-for-redirective-periacetabular-osteotomies
#7
REVIEW
Christoph E Albers, Piet Rogers, Nicholas Wambeek, Sufian S Ahmad, Piers J Yates, Gareth H Prosser
Redirective, periacetabular osteotomies (PAO) represent a group of surgical procedures for treatment of developmental dysplasia of the hip (DDH) in skeletally mature and immature patients. The ultimate goal of all procedures is to reduce symptoms, improve function and delay or prevent progression of osteoarthritis. During the last two decades, the understanding of the underlying pathomechanisms has continuously evolved. This is mainly attributable to the development of the femoroacetabular impingement concept that has increased the awareness of the underlying three-dimensional complexity associated with DDH...
December 2017: Journal of Hip Preservation Surgery
https://www.readbyqxmd.com/read/29249974/computational-modeling-in-liver-surgery
#8
REVIEW
Bruno Christ, Uta Dahmen, Karl-Heinz Herrmann, Matthias König, Jürgen R Reichenbach, Tim Ricken, Jana Schleicher, Lars Ole Schwen, Sebastian Vlaic, Navina Waschinsky
The need for extended liver resection is increasing due to the growing incidence of liver tumors in aging societies. Individualized surgical planning is the key for identifying the optimal resection strategy and to minimize the risk of postoperative liver failure and tumor recurrence. Current computational tools provide virtual planning of liver resection by taking into account the spatial relationship between the tumor and the hepatic vascular trees, as well as the size of the future liver remnant. However, size and function of the liver are not necessarily equivalent...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29242648/enhancing-airway-assessment-of-patients-with-head-and-neck-pathology-using-virtual-endoscopy
#9
Imran Ahmad, Oliver Keane, Sarah Muldoon
Studies have demonstrated that poor assessment and planning contribute to airway complications and that current airway assessment strategies have a poor diagnostic accuracy in predicting difficult intubation in the general population. Patients with head and neck pathology are at higher risk for difficulties during airway management and are more likely to need emergency surgical access. Therefore, thorough assessment of this group of patients is mandatory. The addition of virtual endoscopy (VE) to clinical history and computerised tomography imaging has been shown to improve diagnostic accuracy for supraglottic, glottic and infraglottic lesions and has a positive influence in formulating a more cautious and thorough airway management strategy in this high-risk group of patients...
October 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/29241171/virtual-reality-surgical-simulation-implications-for-resection-of-intracranial-gliomas
#10
Ayoub Dakson, Murray Hong, David B Clarke
Surgical simulation has the potential to play important roles in surgical training and preoperative planning. The advent of virtual reality (VR) with tactile haptic feedback has revolutionized surgical simulation, creating a novel environment for residents to learn manual skills without compromising patient safety. This concept is particularly relevant in neurosurgical training where the acquired skill set demands performance of technically challenging tasks under pressure and where the consequences of error are significant...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29224810/utilization-of-a-pre-bent-plate-positioning-surgical-guide-system-in-precise-mandibular-reconstruction-with-a-free-fibula-flap
#11
Tingwei Bao, Jianfeng He, Changyang Yu, Wenquan Zhao, Yi Lin, Huiming Wang, Jianhua Liu, Huiyong Zhu
OBJECTIVES: We evaluated the effects of three-dimensional virtual planning and the use of a plate-embedded surgical guide in mandibular reconstruction with microvascular fibula flaps. MATERIALS AND METHODS: We retrospectively reviewed 35 patients who underwent primary mandibular reconstruction with a free fibula flap. They were divided into three groups according to the therapy they received. In group A, 12 patients underwent reconstruction using the modified surgical guide system, including virtual surgeries, pre-bent titanium plates, screw-predesignated cutting guides for mandibular and fibular osteotomies, and plate-embedded shaping guides...
December 2017: Oral Oncology
https://www.readbyqxmd.com/read/29215500/feasibility-and-accuracy-of-thoracolumbar-minimally-invasive-pedicle-screw-placement-with-augmented-reality-navigation-technology
#12
Adrian Elmi-Terander, Rami Nachabe, Halldor Skulason, Kyrre Pedersen, Michael Söderman, John Racadio, Drazenko Babic, Paul Gerdhem, Erik Edström
STUDY DESIGN: Cadaveric laboratory study. OBJECTIVE: To assess the feasibility and accuracy of minimally invasive thoracolumbar pedicle screw placement using augmented reality (AR) surgical navigation SUMMARY OF BACKGROUND DATA.: Minimally invasive spine (MIS) surgery has increasingly become the method of choice for a wide variety of spine pathologies. Navigation technology based on AR has been shown to be feasible, accurate and safe in open procedures. AR technology may also be used for MIS surgery...
December 19, 2017: Spine
https://www.readbyqxmd.com/read/29198889/virtual-reality-based-simulators-for-cranial-tumor-surgery-a-systematic-review
#13
REVIEW
Travis Mazur, Tarek R Mansour, Luke Mugge, Azedine Medkour
BACKGROUND: Virtual reality (VR) simulators have become useful tools in various fields of medicine. Prominent uses of VR technologies include assessment of physician skills and for pre-surgical planning. VR has demonstrated effectiveness in multiple surgical specialties, yet its use in the field of neurosurgery remains limited to date. OBJECTIVES: To examine all current literature on VR based simulation for pre-surgical planning and training in cranial tumor surgeries and to assess the quality of these studies...
November 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29198733/virtual-medicine-utilization-of-the-advanced-cardiac-imaging-patient-avatar-for-procedural-planning-and-facilitation
#14
REVIEW
Jerold S Shinbane, Leslie A Saxon
Advances in imaging technology have led to a paradigm shift from planning of cardiovascular procedures and surgeries requiring the actual patient in a "brick and mortar" hospital to utilization of the digitalized patient in the virtual hospital. Cardiovascular computed tomographic angiography (CCTA) and cardiovascular magnetic resonance (CMR) digitalized 3-D patient representation of individual patient anatomy and physiology serves as an avatar allowing for virtual delineation of the most optimal approaches to cardiovascular procedures and surgeries prior to actual hospitalization...
November 16, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29194961/computational-simulation-of-postoperative-pulmonary-flow-distribution-in-alagille-patients-with-peripheral-pulmonary-artery-stenosis
#15
Weiguang Yang, Frank L Hanley, Frandics P Chan, Alison L Marsden, Irene E Vignon-Clementel, Jeffrey A Feinstein
BACKGROUND: Up to 90% of individuals with Alagille syndrome have congenital heart diseases. Peripheral pulmonary artery stenosis (PPS), resulting in right ventricular hypertension and pulmonary flow disparity, is one of the most common abnormalities, yet the hemodynamic effects are ill-defined, and optimal patient management and treatment strategies are not well established. The purpose of this pilot study is to use recently refined computational simulation in the setting of multiple surgical strategies, to examine the influence of pulmonary artery reconstruction on hemodynamics in this population...
December 1, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/29184663/quantifying-attention-shifts-in-augmented-reality-image-guided-neurosurgery
#16
Étienne Léger, Simon Drouin, D Louis Collins, Tiberiu Popa, Marta Kersten-Oertel
Image-guided surgery (IGS) has allowed for more minimally invasive procedures, leading to better patient outcomes, reduced risk of infection, less pain, shorter hospital stays and faster recoveries. One drawback that has emerged with IGS is that the surgeon must shift their attention from the patient to the monitor for guidance. Yet both cognitive and motor tasks are negatively affected with attention shifts. Augmented reality (AR), which merges the realworld surgical scene with preoperative virtual patient images and plans, has been proposed as a solution to this drawback...
October 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29178981/translating-computer-aided-design-and-surgical-planning-into-successful-mandibular-reconstruction-using-a-vascularized-iliac-crest-flap
#17
Lei Zheng, Xiaoming Lv, Jie Zhang, Shuming Liu, Jianguo Zhang, Yi Zhang
PURPOSE: This study evaluated the computer-aided approach to the reconstruction of mandibular defects using a vascularized iliac-crest flap. MATERIALS AND METHODS: From December 2015 to October 2016, 14 patients (8 men and 6 women) 18 to 64 years old (median age, 29 yr) were treated at the Peking University School and Stomatology Hospital (Beijing, China). Biopsy specimens from all patients were subjected to histologic examination before segmental mandibulectomy...
November 3, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29140385/virtual-treatment-planning-for-implant-retained-nasal-prosthesis-a-clinical-report
#18
Muaiyed Mahmoud Buzayan, Norsiah Binti Yunus, Ha Kien Oon, Omar Tawfiq
Osseointegrated craniofacial implants have improved retention and patients' perceptions of implant-retained nasal prostheses; however, the determination of the available bone sites for implant placement post-rhinectomy is difficult. This case report describes the use of cone beam computed tomography scanning and computer-assisted virtual planning in conjunction with digital photographs for rehabilitation of a facial defect with an implant-retained silicon nasal prosthesis. Two implants were planned in the anatomical area with adequate bone volume to achieve favorable cosmetic outcomes and accessibility for hygiene maintenance...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29127451/development-and-validation-of-3d-printed-virtual-models-for-robot-assisted-radical-prostatectomy-and-partial-nephrectomy-urologists-and-patients-perception
#19
Francesco Porpiglia, Riccardo Bertolo, Enrico Checcucci, Daniele Amparore, Riccardo Autorino, Prokar Dasgupta, Peter Wiklund, Ashutosh Tewari, Evangelos Liatsikos, Cristian Fiori
PURPOSE: To test the face and content validity of 3D virtual-rendered printed models used before robot-assisted prostate cancer and nephron-sparing surgery. METHODS: Patients who underwent live surgery during an international urological meeting organized in January 2017 were enrolled. Those with organ-confined prostate cancer underwent robot-assisted radical prostatectomy. Patients with a single renal tumor underwent minimally invasive nephron-sparing surgery. High-resolution (HR) imaging was obtained for all patients...
November 10, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/29101640/computational-modeling-of-abdominal-hernia-laparoscopic-repair-with-a-surgical-mesh
#20
Silvia Todros, Paola Pachera, Nicola Baldan, Piero G Pavan, Silvia Pianigiani, Stefano Merigliano, Arturo N Natali
PURPOSE: Although new techniques and prostheses have been introduced in ventral hernia surgery, abdominal hernia repair still presents complications, such as recurrence, pain, and discomfort. Thus, this work implements a computational method aimed at evaluating biomechanical aspects of the abdominal hernia laparoscopic repair, which can support clinical research tailored to hernia surgery. METHODS: A virtual solid model of the abdominal wall is obtained from MRI scans of a healthy subject...
November 3, 2017: International Journal of Computer Assisted Radiology and Surgery
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