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Virtual surgical planning

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https://www.readbyqxmd.com/read/28331927/bilateral-shoulder-arthrodesis-in-a-pekinese-using-three-dimensional-printed-patient-specific-osteotomy-and-reduction-guides
#1
Bill Oxley
OBJECTIVE: To report the use of computer-aided design software for virtual surgical planning and design of three-dimensional printed patient-specific osteotomy and reduction guides for facilitation of bilateral shoulder arthrodesis in a dog. METHODS: A three-year-old male entire Pekinese was presented unable to walk due to bilateral severe medial shoulder instability. Computed tomographic data was processed to yield three-dimensional mesh representations of the humeri and scapulae which could be manipulated in computer-aided design software...
March 23, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28331887/android-application-for-determining-surgical-variables-in-brain-tumor-resection-procedures
#2
Rohan C Vijayan, Reid C Thompson, Lola B Chambless, Peter J Morone, Le He, Logan W Clements, Rebekah H Griesenauer, Hakmook Kang, Michael I Miga
The fidelity of image-guided neurosurgical procedures is often compromised due to the mechanical deformations that occur during surgery. In recent work, a framework was developed to predict the extent of this brain shift in brain-tumor resection procedures. The approach uses preoperatively determined surgical variables to predict brain shift and then subsequently corrects the patient's preoperative image volume to more closely match the intraoperative state of the patient's brain. However, a clinical workflow difficulty with the execution of this framework is the preoperative acquisition of surgical variables...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28328475/virtual-reconstructive-surgical-planning
#3
Eric R Carlson
No abstract text is available yet for this article.
January 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28327467/automated-detection-of-epileptic-ripples-in-meg-using-beamformer-based-virtual-sensors
#4
Carolina Migliorelli, Joan Alonso, Sergio Romero, Rafal Nowak, Antonio Russi, Miguel Mananas
OBJECTIVE: In epilepsy, high-frequency oscillations (HFOs) are considered events highly linked to the seizure onset zone (SOZ). The detection of HFOs in noninvasive signals such as scalp EEG and MEG is still a challenging task. The aim of this study was to automatize the detection of ripples in MEG signals reducing the high-frequency noise using beamformer-based virtual sensors (VS) and applying an automatic procedure exploring the time-frequency content of the detected events. APPROACH: 200 seconds of MEG signals and simultaneous iEEG were selected in nine patients with refractory epilepsy...
March 22, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28325055/-experience-with-hepatoblastoma-treatment-in-small-children-the-use-of-preoperative-3d-virtual-analysis-mevis-for-liver-resections
#5
J Janek, P Bician, P Kenderessy, P Kothaj, K Novotná, J Koňarčík, Ľ Laca, J Ulianko, I Dedinská
INTRODUCTION: Hepatoblastoma is an uncommon but most frequent liver cancer in infants and children. The therapy is complex, including neoadjuvant, surgical, and adjuvant therapy. For surgery, the presence of a specialized surgeon and an anaesthesiologist is required. For planning the surgery, the 3D analysis MeVis is currently available. The objective of the work is the assessment of a group of children operated for a liver hepatoblastoma and the assessment of contribution of a pre-surgery virtual 3D analysis MeVis for a surgeon...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28320612/three-dimensional-image-fusion-of-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-and-contrast-enhanced-computed-tomography-for-computer-assisted-planning-of-maxillectomy-of-recurrent-maxillary-squamous-cell-carcinoma-and-defect-reconstruction
#6
Yao Yu, Wen-Bo Zhang, Xiao-Jing Liu, Chuan-Bin Guo, Guang-Yan Yu, Xin Peng
PURPOSE: The purpose of this study was to describe new technology assisted by 3-dimensional (3D) image fusion of (18)F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/computed tomography (CT) and contrast-enhanced CT (CECT) for computer planning of a maxillectomy of recurrent maxillary squamous cell carcinoma and defect reconstruction. MATERIALS AND METHODS: Treatment of recurrent maxillary squamous cell carcinoma usually includes tumor resection and free flap reconstruction...
February 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28316122/digital-workflow-for-fixed-implant-rehabilitation-of-an-extremely-atrophic-edentulous-mandible-in-three-appointments
#7
Panos Papaspyridakos, Neha Rajput, Yukio Kudara, Hans-Peter Weber
OBJECTIVE: To present a rationale to reduce treatment complexity, number of surgeries, and overall treatment time for patients with extreme mandibular ridge deficiency. CLINICAL CONSIDERATIONS: A 67-year-old fully edentulous male presented with a chief complaint of poor retention and stability of the mandibular complete denture with consequent discomfort and inability to chew. A novel 3-appointment protocol from guided implant placement to definitive prosthesis delivery was implemented...
March 18, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28302337/the-accuracy-of-computer-guided-piezocision-a-prospective-clinical-pilot-study
#8
M Cassetta, M Ivani
Computer-guided piezocision can be used to overcome the disadvantages of corticotomy in accelerating orthodontic tooth movement. The aim of this clinical pilot study was to determine the accuracy of this technique. STROBE guidelines were followed. Ten patients were selected and treated. Using new dedicated planning software, the piezocision cuts were properly positioned in virtual models. A surgical guide was designed and printed with slots to guide the scalpel blade first and then the piezoelectric micro-saw...
March 13, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28299272/three-dimensional-planning-in-craniomaxillofacial-surgery
#9
Josep Rubio-Palau, Alejandra Prieto-Gundin, Asteria Albert Cazalla, Miguel Bejarano Serrano, Gemma Garcia Fructuoso, Francisco Parri Ferrandis, Alejandro Rivera Baró
INTRODUCTION: Three-dimensional (3D) planning in oral and maxillofacial surgery has become a standard in the planification of a variety of conditions such as dental implants and orthognathic surgery. By using custom-made cutting and positioning guides, the virtual surgery is exported to the operating room, increasing precision and improving results. MATERIALS AND METHODS: We present our experience in the treatment of craniofacial deformities with 3D planning. Software to plan the different procedures has been selected for each case, depending on the procedure (Nobel Clinician, Kodak 3DS, Simplant O&O, Dolphin 3D, Timeus, Mimics and 3-Matic)...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28294207/selecting-the-appropriate-digital-planning-pathway-%C3%A2-for-computer-guided-implant-surgery
#10
Alejandro Lanis, Pablo Llorens, Orlando Álvarez Del Canto
The incorporation of virtual engineering into our profession and the digitalization of information are allowing us new perspectives and innovative alternatives for dental treatment modalities. The use of computer-guided implant-planning software allows the radiographic, prosthetic, surgical, and laboratory fields to be combined under a common virtual scenario, permitting complete virtual treatment planning. Different alternatives for the digital workflow have been described for computer-guided implant placement...
2017: International Journal of Computerized Dentistry
https://www.readbyqxmd.com/read/28294204/investigations-on-the-accuracy-of-3d-printed-drill-guides-for-dental-implantology
#11
André Neumeister, Linda Schulz, Christoph Glodecki
This article describes the computer-aided design/computer-aided manufacture (CAD/CAM) accuracy of dental drill guides for application in guided surgery. Today, the availability of three-dimensional (3D) desktop printers allows for the cost-effective production of drill guides by dental laboratories. Our investigations show the accuracy of produced guides by eliminating influencing factors that exist in the guided surgery workflow. To investigate this accuracy, a method was developed to evaluate the CAD/CAM production technology apart from sources of error from cone beam computed tomography (CBCT) scans, intraoral scans, software or human error...
2017: International Journal of Computerized Dentistry
https://www.readbyqxmd.com/read/28292706/effect-of-airflow-and-material-models-on-tissue-displacement-for-surgical-planning-of-pharyngeal-airways-in-pediatric-down-syndrome-patients
#12
Dhananjay Radhakrishnan Subramaniam, Goutham Mylavarapu, Robert J Fleck, Raouf S Amin, Sally R Shott, Ephraim J Gutmark
Pharyngeal narrowing in obstructive sleep apnea (OSA) results from flow-induced displacement of soft tissue. The objective of this study is to evaluate the effect of airflow parameters and material model on soft tissue displacement for planning surgical treatment in pediatric patients with OSA and Down syndrome (DS). Anatomically accurate, three-dimensional geometries of the pharynx and supporting tissue were reconstructed for one pediatric OSA patient with DS using magnetic resonance images. Six millimeters of adenoid tissue was virtually removed based on recommendations from the surgeon, to replicate the actual adenoidectomy...
March 8, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28291860/virtual-preoperative-planning-and-intraoperative-navigation-in-facial-prosthetic-reconstruction-a-technical-note
#13
Suzanne Verma, Marianela Gonzalez, Sterling R Schow, R Gilbert Triplett
This technical protocol outlines the use of computer-assisted image-guided technology for the preoperative planning and intraoperative procedures involved in implant-retained facial prosthetic treatment. A contributing factor for a successful prosthetic restoration is accurate preoperative planning to identify prosthetically driven implant locations that maximize bone contact and enhance cosmetic outcomes. Navigational systems virtually transfer precise digital planning into the operative field for placing implants to support prosthetic restorations...
March 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28291855/guided-immediate-implant-placement-with-wound-closure-by-computer-aided-design-computer-assisted-manufacture-sealing-socket-abutment-case-report
#14
Gary Finelle, Sang J Lee
Digital technology has been widely used in the field of implant dentistry. From a surgical standpoint, computer-guided surgery can be utilized to enhance primary implant stability and to improve the precision of implant placement. From a prosthetic standpoint, computer-aided design/computer-assisted manufacture (CAD/CAM) technology has brought about various restorative options, including the fabrication of customized abutments through a virtual design based on computer-guided surgical planning. This case report describes a novel technique combining the use of a three-dimensional (3D) printed surgical template for the immediate placement of an implant, with CAD/CAM technology to optimize hard and soft tissue healing after bone grafting with the use of a socket sealing abutment...
March 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28288065/how-has-virtual-hepatectomy-changed-the-practice-of-liver-surgery-experience-of-1194-virtual-hepatectomy-before-liver-resection-and-living-donor-liver-transplantation
#15
Yoshihiro Mise, Kiyoshi Hasegawa, Shouichi Satou, Junichi Shindoh, Kenji Miki, Nobuhisa Akamatsu, Junichi Arita, Junichi Kaneko, Yoshihiro Sakamoto, Norihiro Kokudo
OBJECTIVE: To assess how virtual hepatectomy (VH), conducted using surgical planning software, influences the outcomes of liver surgery. BACKGROUND: Imaging technology visualizes the territories of the liver vessels, which were previously impossible. However, the clinical impact of VH has not been evaluated. METHODS: From 2004 to 2013, we performed 1194 VHs preoperatively. Outcomes of living donor liver transplantation (LDLT) and hepatectomy for hepatocellular carcinoma (HCC)/colorectal liver metastases (CRLM) were compared between patients in whom VH was performed (VH) and those without VH evaluation (non-VH)...
March 10, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28284470/virtual-fracture-clinic-management-of-fifth-metatarsal-including-jones-fractures-is-safe-and-cost-effective
#16
Kit Brogan, Simon Bellringer, Harold Akehurst, Christopher Gee, Nada Ibrahim, Lucy Cassidy, Ben Rogers, James Gibbs
Virtual clinics have been shown to be safe and cost-effective in many specialties, yet barriers exist to their implementation in orthopaedics. The aims of this study were to look at whether the management of 5th metatarsal fractures using a virtual fracture clinic model is safe, cost effective and avoids adverse outcomes whilst being acceptable to patients using the service. All patients with a fifth metatarsal fracture between September 2013 and September 2015 had a standardised management plan initiated (blackboot, full weightbearing) in the emergency department (ED)...
February 12, 2017: Injury
https://www.readbyqxmd.com/read/28283212/-identification-of-perforating-vessels-by-augmented-reality-application-for-the-deep-inferior-epigastric-perforator-flap
#17
R Bosc, A Fitoussi, F Pigneur, V Tacher, B Hersant, J-P Meningaud
The augmented reality on smart glasses allows the surgeon to visualize three-dimensional virtual objects during surgery, superimposed in real time to the anatomy of the patient. This makes it possible to preserve the vision of the surgical field and to dispose of added computerized information without the need to use a physical surgical guide or a deported screen. TECHNIQUE: The three-dimensional objects that we used and visualized in augmented reality came from the reconstructions made from the CT-scans of the patients...
March 7, 2017: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/28281114/value-of-3d-printing-for-the-comprehension-of-surgical-anatomy
#18
Stefania Marconi, Luigi Pugliese, Marta Botti, Andrea Peri, Emma Cavazzi, Saverio Latteri, Ferdinando Auricchio, Andrea Pietrabissa
BACKGROUND: In a preliminary experience, we claimed the potential value of 3D printing technology for pre-operative counseling and surgical planning. However, no objective analysis has ever assessed its additional benefit in transferring anatomical information from radiology to final users. We decided to validate the pre-operative use of 3D-printed anatomical models in patients with solid organs' diseases as a new tool to deliver morphological information. METHODS: Fifteen patients scheduled for laparoscopic splenectomy, nephrectomy, or pancreatectomy were selected and, for each, a full-size 3D virtual anatomical object was reconstructed from a contrast-enhanced MDCT (Multiple Detector Computed Tomography) and then prototyped using a 3D printer...
March 9, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28280668/zygomatico-maxillary-reconstruction-with-computer-aided-manufacturing-of-a-free-dcia-osseous-flap-and-intraoral-anastomoses
#19
Andrée-Anne Roy, Johnny I Efanov, Geneviève Mercier-Couture, André Chollet, Daniel E Borsuk
Craniomaxillofacial reconstruction using virtual surgical planning, computer-aided manufacturing, and new microsurgical techniques optimizes patient-specific and defect-directed reconstruction. A 3D customized free deep circumflex iliac artery (DCIA) flap with intraoral anastomoses was performed on a 23-year-old man with a posttraumatic right zygomatico-maxillary defect with failure of alloplastic implant reconstruction. An osseous iliac crest flap was sculpted based on a customized 3D model of the mirror image of the patient's unaffected side to allow for perfect fit to the zygomatico-maxillary defect...
February 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28275282/additive-manufacturing-for-surgical-planning-of-mandibular-fracture
#20
Nadja Maria da Silva Oliveira Brito, Renata de Souza Coelho Soares, Erik Lafitt Tavares Monteiro, Sergio Charifker Ribeiro Martins, Josuel Raimundo Cavalcante, Rafael Grotta Grempel, José Augusto de Oliveira Neto
Currently, imaging techniques such as Computed Tomography with three-dimensional reconstruction (3D) and Magnetic Resonances are being routinely used in pre-surgical planning in all fields of medicine. Nowadays, virtual three-dimensional images, commonly displayed on two-dimensional surfaces, such as the computer screen, can be used to produce rapidly prototyped models, with excellent dimensional accuracy and fine reproduction of anatomical structures, providing professionals with the ability to use the biomodel in planning and simulating medical and dental procedures (oral and maxillofacial surgery, making individualized facial implants and prostheses, measurements and previous adaptations of prefabricated fixation plates), thus contributing to considerable reductions in surgical time and consequently the duration of anesthesia, minimizing infection risks and reducing hospital costs...
December 2016: Acta Stomatologica Croatica
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