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https://www.readbyqxmd.com/read/28328608/tomographic-evaluation-of-prevalence-position-and-diameter-of-the-intraosseous-branch-of-the-posterior-superior-alveolar-artery-in-fully-edentulous-individuals
#1
Guilherme José Pimentel Lopes de Oliveira, Marciel Antônio Abdala, Hugo Nary-Filho, Celso Eduardo Sakakura, Valdir Gouveia Garcia, Felipe Coletti Leite
The objective of this study was to evaluate the presence, position, and diameter of the intraosseous branch (IObr) of the posterior superior alveolar artery in fully edentulous patients. Two-hundred five computed tomography scans of fully edentulous patients were analyzed. The presence of the IObr was investigated in the coronal plane at the lateral wall of the maxillary sinus. In patients in whom the IObr was detected, the artery diameter was measured, and the distance from the artery to the bone crest of the alveolar ridge, the maxillary sinus floor, and the distance of the maxillary sinus floor to the bone crest of the alveolar ridge were measured as well...
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28322901/urethral-mobilization-as-an-alternative-procedure-for-distal-hypospadias-repair
#2
Hamed M El Darawany, Mahmoud E Al Damhogy
OBJECTIVE: To evaluated the urethral mobilization procedure as the main technique in management of glanular, coronal, subcoronal, and distal penile hypospadias. PATIENTS AND METHODS: Sixty patients with distal hypospadias were included in this prospective study between January 2013 and January 2015. All of them repaired by urethral mobilization. All patients were followed up at 2 weeks, 1, 3, 6 and 12 months post operatively. Duration of the operation, hospital stay, position of meatus and its shape before and after the operation and the postoperative complications were recorded...
March 17, 2017: Urology
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
#3
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/28302337/the-accuracy-of-computer-guided-piezocision-a-prospective-clinical-pilot-study
#4
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/28294204/investigations-on-the-accuracy-of-3d-printed-drill-guides-for-dental-implantology
#5
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/28293719/placental-recess-accompanied-by-a-t2-dark-band-a-new-finding-for-diagnosing-placental-invasion
#6
Tomomi Sato, Naoko Mori, Osamu Hasegawa, Takeshi Shigihara, Keiya Fujimori, Kazuhiro Tasaki, Fumio Shishido
PURPOSE: Our aim was to assess the usefulness of a new magnetic resonance imaging (MRI) finding, the placental recess, for diagnosing placental invasion. METHODS: This retrospective study included 51 patients (mean age 34.1 years, range 26-43 years) with suspected placental invasion who underwent cesarean section. Preoperative MRI was performed using a 1.5-T unit and included axial, sagittal, and coronal T2-weighted imaging (T2WI) with half-Fourier fast spin-echo sequences...
March 14, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28283825/temperature-evolution-of-preheated-irrigant-injected-into-a-root-canal-ex-vivo
#7
Ricardo G Macedo, Bram Verhaagen, Michel Versluis, Luc van der Sluis
OBJECTIVES: The aim of this study is to test the influence of the temperature of the surrounding medium, flow rate, duration of irrigation, and apical patency on the evolution of the temperature of irrigants injected in a root canal. MATERIALS AND METHODS: Thermocouples were inserted into an incisor at different positions to monitor irrigant temperature during and after injection at 21, 45, or 60 °C. The tooth was immersed in a water bath at 21 and 37 °C. RESULTS: Preheated syringes were used for up to 2...
March 10, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28282477/movements-of-the-glottis-during-horn-performance-a-pilot-study
#8
Peter W Iltis, Sarah L Gillespie, Jens Frahm, Dirk Voit, Arun Joseph, Eckart Altenmüller
OBJECTIVE: The functional role of the glottis in brass performance is poorly understood and controversial, particularly with respect to pedagogy. Technological limitations have prevented the non-invasive, systematic study of the glottis in the past, but developments in real-time magnetic resonance imaging (RT-MRI) allow representations of glottal movement during performance on a MRI-compatible horn to be recorded and quantified. METHODS: We present RT-MRI data obtained on 6 advanced-level horn players from serial images acquired at an acquisition time of 33...
March 2017: Medical Problems of Performing Artists
https://www.readbyqxmd.com/read/28281005/a-clinical-study-of-the-coronal-plane-deformity-in-parkinson-disease
#9
Xiaoyun Ye, Danning Lou, Xueping Ding, Chaoyan Xie, Jixiang Gao, Yuting Lou, Zhidong Cen, Yuxiang Xiao, Qianzhuang Miao, Fei Xie, Xiaosheng Zheng, Jianxin Wu, Fangcai Li, Wei Luo
BACKGROUND: Postural deformities in the coronal plane were frequent and disabling complications of PD, which reduces the quality of life of patients. This study aimed to garner greater attention to the Parkinson disease (PD)-related postural trunk deviations in the coronal plane by exploring a method for diagnosis because of the lack of any uniform diagnostic criteria and epidemiological studies. It also aimed to provide correlation data in the Chinese PD patients. METHODS: In this cross-sectional study, 503 consecutive outpatients with PD were enrolled who underwent standardized clinical evaluation...
March 9, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28275657/utility-of-coronal-contrast-enhanced-fat-suppressed-flair-in-the-evaluation-of-optic-neuropathy-and-atrophy
#10
Kevin H Boegel, Andrew E Tyan, Veena R Iyer, Jeffrey B Rykken, Alexander M McKinney
BACKGROUND AND PURPOSE: Evaluating chronic sequelae of optic neuritis, such as optic neuropathy with or without optic nerve atrophy, can be challenging on whole brain MRI. This study evaluated the utility of dedicated coronal contrast-enhanced fat-suppressed FLAIR (CE-FS-FLAIR) MR imaging to detect optic neuropathy and optic nerve atrophy. MATERIALS AND METHODS: Over 4.5 years, a 3 mm coronal CE-FS-FLAIR sequence at 1.5T was added to the routine brain MRIs of 124 consecutive patients, 102 of whom had suspected or known demyelinating disease...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28274039/evaluation-of-gengigel%C3%A2-application-in-the-management-of-furcation-with-coronally-advanced-flap-through-surgical-re-entry-a-split-mouth-clinical-study
#11
Sugandha Gupta, Suresh D Kediege, Akanksha Gupta, Kanu Jain
INTRODUCTION: One of the challenging and unique periodontal problem of Grade II furcation defect has been managed through different treatment modalities in the past. A successful approach is based on complete closure of the defect. Different regenerative approaches have been tried. AIM: This study was carried out with an aim to evaluate the role of Gengigel® (0.8% hyaluronic acid) as a potential material for regeneration of lost attachment apparatus. MATERIALS AND METHODS: A total of 20 sites with Grade II furcation defects from 10 patients were selected using random sampling technique...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28262985/smith-s-fracture-generally-occurs-after-falling-on-the-palm-of-the-hand
#12
Yusuke Matsuura, Tomoyuki Rokkaku, Kazuki Kuniyoshi, Kazuhisa Takahashi, Takane Suzuki, Aya Tanaka, Tomoyo Akasaka, Naoya Hirosawa, Maki Iwase, Atsuro Yamazaki, Sumihisa Orita, Seiji Ohtori
Orthopedic trauma surgeons often encounter Smith's fracture in patients who report that they have fallen on the palms of their hands. The aim of this study was to clarify the pathogenesis of Smith's fracture in basic clinical aspects. First, a survey was conducted for investigating the mechanism of injury and arm position at the time of injury among patients with Smith's fractures who consulted at our outpatient clinic. Second, we created three-dimensional finite element models (FEMs) to predict the influence of arm position on the type of injury resulting from a fall...
March 6, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28251190/upright-prone-and-supine-spinal-morphology-and-alignment-in-adolescent-idiopathic-scoliosis
#13
Rob C Brink, Dino Colo, Tom P C Schlösser, Koen L Vincken, Marijn van Stralen, Steve C N Hui, Lin Shi, Winnie C W Chu, Jack C Y Cheng, René M Castelein
BACKGROUND: Patients with adolescent idiopathic scoliosis (AIS) are usually investigated by serial imaging studies during the course of treatment, some imaging involves ionizing radiation, and the radiation doses are cumulative. Few studies have addressed the correlation of spinal deformity captured by these different imaging modalities, for which patient positioning are different. To the best of our knowledge, this is the first study to compare the coronal, axial, and sagittal morphology of the scoliotic spine in three different body positions (upright, prone, and supine) and between three different imaging modalities (X-ray, CT, and MRI)...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28236185/the-accuracy-of-the-lateral-vertebral-notch-referred-pedicle-screw-insertion-technique-in-subaxial-cervical-spine-a-human-cadaver-study
#14
Jiaquan Luo, Chunyang Wu, Zhongren Huang, Zhimin Pan, Zhiyun Li, Junlong Zhong, Yiwei Chen, Zhimin Han, Kai Cao
STUDY DESIGN: This is a cadaver specimen study to confirm new pedicle screw (PS) entry point and trajectory for subaxial cervical PS insertion. OBJECTIVE: To assess the accuracy of the lateral vertebral notch-referred PS insertion technique in subaxial cervical spine in cadaver cervical spine. BACKGROUNDS: Reported morphometric landmarks used to guide the surgeon in PS insertion show significant variability. In the previous study, we proposed a new technique (as called "notch-referred" technique) primarily based on coronal multiplane reconstruction images (CMRI) and cortical integrity after PS insertion in cadavers...
February 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28224306/localization-of-the-fetal-conus-medullaris-by-oblique-view-extended-imaging
#15
Shui-Hua Yang, Zuo-Jian Yang, Yuan-Yuan Li, Huan Huang, Xiao-Xian Tian
OBJECTIVE: To evaluate the accuracy of oblique view extended imaging (OVEI) in locating the position of the fetal conus medullaris. METHODS: One hundred and twenty-two normal fetuses and five counterparts with spinal bifida received prenatal ultrasound examination. The vertebral body at the terminal of the conus medullaris and the coronal section of over five vertebral bodies were reconstructed using OVEI. Development of the nervous system of normal fetuses was assessed at postnatal day 28...
February 21, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28220268/anterolateral-ligament-expert-group-consensus-paper-on-the-management-of-internal-rotation-and-instability-of-the-anterior-cruciate-ligament-deficient-knee
#16
REVIEW
Bertrand Sonnery-Cottet, Matthew Daggett, Jean-Marie Fayard, Andrea Ferretti, Camilo Partezani Helito, Martin Lind, Edoardo Monaco, Vitor Barion Castro de Pádua, Mathieu Thaunat, Adrian Wilson, Stefano Zaffagnini, Jacco Zijl, Steven Claes
Purpose of this paper is to provide an overview of the latest research on the anterolateral ligament (ALL) and present the consensus of the ALL Expert Group on the anatomy, radiographic landmarks, biomechanics, clinical and radiographic diagnosis, lesion classification, surgical technique and clinical outcomes. A consensus on controversial subjects surrounding the ALL and anterolateral knee instability has been established based on the opinion of experts, the latest publications on the subject and an exchange of experiences during the ALL Experts Meeting (November 2015, Lyon, France)...
February 20, 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/28210787/articular-surface-mounted-navigated-total-knee-arthroplasty-improves-the-reliability-of-component-alignment
#17
N D Clement, D MacDonald, A G Burgess, C R Howie
PURPOSE: The primary aim was to compare the early knee-specific functional outcome after articular surface mounted (ASM) navigation with non-navigated TKA. The secondary aims were to compare general physical and mental health improvement, patient satisfaction, and reliability of component alignment in the sagittal and coronal planes between ASM navigated TKA with that of non-navigated TKA. METHODS: Prospective functional outcome and radiographic data were collect for 123 patients undergoing ASM navigation and 172 patients undergoing non-navigated TKA by a high volume single surgeon...
February 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28209278/the-impact-of-coronal-plane-alignment-on-polyethylene-wear-and-damage-in-total-knee-arthroplasty-a-retrieval-study
#18
Pieter-Jan T K Vandekerckhove, Matthew G Teeter, Douglas D R Naudie, James L Howard, Steven J MacDonald, Brent A Lanting
BACKGROUND: Coronal plane alignment is one of the contributing factors to polyethylene wear in total knee arthroplasty. METHODS: Based on 95 retrieved polyethylene inserts, wear and damage patterns were analyzed in relationship to the overall mechanical alignment and to the position of the tibial component. RESULTS: A progression of wear was observed with progressively mechanical varus alignment. However, there was significantly more damage in the lateral compartment in the mild and moderate varus group compared to the valgus group...
January 4, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28203419/diagnosis-of-mitral-valve-cleft-using-real-time-3-dimensional-echocardiography
#19
Xinchun Yuan, Aiyun Zhou, Li Chen, Cheng Zhang, Yan Zhang, Pan Xu
BACKGROUND: Mitral valve cleft (MVC) is the most common cause of congenital mitral insufficiency, and MVC may occur alone or in association with other congenital heart lesions. Direct suture and valvuloplasty are the major and effective treatments for mitral regurgitation (MR) caused by MVC. Therefore, it is important to determine the location and magnitude of the pathological damage due to MVC when selecting a surgical procedure for treatment. This study explored the application value of transthoracic real-time 3-dimensional (3D) echocardiography (RT-3DE) in the diagnosis of MVC...
January 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28196158/hybrid-implants-in-healthy-and-periodontally-compromised-patients-a-preliminary-clinical-and-radiographic-study
#20
Sergio Spinato, Fabio Bernardello, Paolo Sassatelli, Davide Zaffe
This preliminary clinical and radiographic study examined the survival of, the marginal bone loss (MBL) around, and the influence of prosthetic abutment height (AH) on MBL around hybrid implants placed in two groups of partially edentulous patients: healthy (HPs) and periodontally compromised (PCPs) patients. A total of 93 patients requiring single or multiunit implant restoration, in the mandible or maxilla, were treated while undergoing cement-retained prosthetic restoration. A total of 54 implants (35 in the maxilla and 19 in the mandible) were placed in 45 HPs, and 56 implants (31 in the maxilla and 25 in the mandible) in 48 PCPs...
March 2017: International Journal of Periodontics & Restorative Dentistry
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