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https://www.readbyqxmd.com/read/28735346/anatomical-relation-between-nasal-septum-deviation-and-oropharynx-volume-in-different-facial-patterns-evaluated-through-cone-beam-computed-tomography
#1
Ana Márcia Viana Wanzeler, Maria Daniela Oliveira Renda, Maria Eduarda de Oliveira Pereira, Sérgio Melo Alves-Junior, Fabricio Mesquita Tuji
INTRODUCTION: The objective of this study was to establish the anatomical relation between nasal septum deviation (NSD) and oropharynx volume in different facial patterns using cone beam computed tomography (CBCT). METHODS: Ninety CBCT examinations were analyzed. InVivoDental software was used to evaluate cephalometric image reconstructions in terms of facial type, determined from cephalometric measurements indicative of growth direction; the presence of NSD was also evaluated...
July 22, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28734956/fast-carotid-artery-mr-angiography-with-compressed-sensing-based-three-dimensional-time-of-fight-sequence
#2
Bo Li, Hao Li, Li Dong, Guofu Huang
OBJECTIVE: In this study, we sought to investigate the feasibility of fast carotid artery MR angiography (MRA) by combining three-dimensional time-of-flight (3D TOF) with compressed sensing method (CS-3D TOF). MATERIALS AND METHODS: A pseudo-sequential phase encoding order was developed for CS-3D TOF to generate hyper-intense vessel and suppress background tissues in under-sampled 3D k-space. Seven healthy volunteers and one patient with carotid artery stenosis were recruited for this study...
July 19, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28734847/noise-optimized-virtual-monoenergetic-dual-energy-ct-improves-diagnostic-accuracy-for-the-detection-of-active-arterial-bleeding-of-the-abdomen
#3
Simon S Martin, Julian L Wichmann, Jan-Erik Scholtz, Doris Leithner, Tommaso D'Angelo, Hendrik Weyer, Christian Booz, Lukas Lenga, Thomas J Vogl, Moritz H Albrecht
PURPOSE: To evaluate diagnostic accuracy of a noise-optimized virtual monoenergetic imaging (VMI+) reconstruction technique for detection of active arterial abdominal bleeding on dual-energy (DE) CT angiography compared with standard image reconstruction. MATERIALS AND METHODS: DE CT angiography data sets of 71 patients (46 men; age 63.6 y ± 13.3) with suspected arterial bleeding of the abdomen or pelvis were reconstructed with standard linearly blended (F_0.5), VMI+, and traditional virtual monoenergetic imaging (VMI) algorithms in 10-keV increments from 40 to 100 keV...
July 19, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28734754/cost-analysis-of-microtia-treatment-in-the-netherlands
#4
M N Kolodzynski, C V A van Hövell Tot Westerflier, M Kon, C C Breugem
INTRODUCTION: Ear reconstruction for microtia is a challenging procedure. Although analyzing esthetic outcome is crucial, there is a paucity of information with regard to financial aspects of microtia reconstruction. This study was conducted to analyze the costs associated with ear reconstruction with costal cartilage in patients with microtia. METHODS: Ten consecutive children with autologous ear reconstruction of a unilateral microtia were included in this analysis...
June 28, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28734752/long-term-effect-of-oncoplastic-breast-conserving-surgery-using-latissimus-dorsi-miniflaps-on-mammographic-surveillance-and-the-detection-of-local-recurrence
#5
S Mele, D Wright, N Paramanathan, S Laws, L Peiris, R Rainsbury
INTRODUCTION: Latissimus dorsi miniflap is a breast-conserving volume replacement technique for the reconstruction of large breast defects. While mammographic features of miniflap reconstruction have been described, little is known about the incidence, mode of presentation and size of local recurrence after this procedure. This study aimed to investigate the impact of latissimus dorsi miniflap reconstruction on the frequency, presentation and detection of local recurrence. METHODS: Clinical, radiological and pathological data were reviewed in 261 patients...
June 28, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28734533/changes-in-pitching-mechanics-after-ulnar-collateral-ligament-reconstruction-in-major-league-baseball-pitchers
#6
Daniel A Portney, Jake M Lazaroff, Lucas T Buchler, Stephen M Gryzlo, Matthew D Saltzman
BACKGROUND: Medial ulnar collateral ligament (UCL) reconstruction is a common procedure performed on Major League Baseball pitchers. Variations in pitching mechanics before and after UCL reconstructive surgery are not well understood. METHODS: Publicly available pitch tracking data (PITCHf/x) were compared for all Major League Baseball pitchers who underwent UCL reconstruction between 2008 and 2013. Specific parameters analyzed were fastball percentage, release location, velocity, and movement of each pitch type...
August 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28734457/total-lower-lip-and-chin-reconstruction-with-radial-forearm-free-flap-a-novel-approach
#7
Eliza H Dewey, Ansley M Roche, Cathy L Lazarus, Mark L Urken
BACKGROUND: The management of large chin and lower lip defects is challenging due to this facial subunit's tremendous functional and aesthetic importance. Specific methods for total lower lip and mentum reconstruction are not well chronicled. Aesthetic and functional goals of this reconstruction include restoration of oral competence by maintaining lower lip height, vermilion reestablishment, color-matched skin introduction to the chin, sensation restoration, and ideally restoration of dynamic activity to the lower lip...
July 8, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28734032/characterization-of-the-axon-initial-segment-of-mice-substantia-nigra-dopaminergic-neurons
#8
Cristian González-Cabrera, Rodrigo Meza, Lorena Ulloa, Paulina Merino-Sepúlveda, Valentina Luco, Ana Sanhueza, Alejandro Oñate-Ponce, J Paul Bolam, Pablo Henny
The axon initial segment (AIS) is the site of initiation of action potentials and also influences action potential waveform, firing pattern and rate. In view of the fundamental aspects of motor function and behavior that depend on the firing of substantia nigra pars compacta (SNc) dopaminergic neurons, we identified and characterized their AIS in the mouse. Immunostaining for tyrosine hydroxylase (TH), sodium channels (Nav ) and ankyrin-G (Ank-G) was used to visualize the AIS of dopaminergic neurons. Reconstructions of sampled AIS of dopaminergic neurons revealed variable lengths (12 - 60 μm) and diameters (0...
July 22, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28733847/posterior-only-approach-for-fifth-lumbar-corpectomy-indications-and-technical-notes
#9
Belal Elnady, Ahmad Shawky, Hamdan Abdelrahman, Essam Elmorshidy, Mohamed El-Meshtawy, Galal Zaki Said
PURPOSE: To evaluate the efficacy and safety of a posterior-only approach for L5 corpectomy, with lumbopelvic fixation for treatment of secondaries, infections, or burst fractures. METHODS: Between 2010 and 2013, 17 patients with L5 pathology had corpectomy through a posterior-only approach, with reconstruction of the anterior column using titanium cages filled with bone graft. The indication for surgery was presence of secondaries in nine patients, spondylitis and spondylodiscitis in five patients and burst fractures due to high energy trauma in three patients...
July 21, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28733109/reconstructing-the-chronically-disrupted-knee-extensor-mechanism-after-total-knee-arthroplasty-hourglass-variant-of-the-original-partial-allograft-technique
#10
C Fiquet, A Schneider, R Ballis, E Servien, P Neyret, S Lustig
Allograft reconstruction is a valuable treatment option for patients with chronic extensor mechanism disruption after total knee arthroplasty. Here, an hourglass variant of the original partial allografttechnique is described. An hourglass-shaped patellar bone block is press-fit into the native patella. The graft is fixed to both the patella and the tibia then sutured with the knee fully extended. Outcomes of this technique were assessed in 5 patients after at least 24 months' follow-up. The mean knee and function Knee Society Score values were 77...
July 18, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28732224/three-dimensional-changes-in-the-upper-airway-of-skeletal-class-iii-patients-after-different-orthognathic-surgical-procedures
#11
Yuxue Yang, Kai Yang, Ying Zhao
PURPOSE: We hypothesized that 3-dimensional changes in the upper airway of patients with skeletal Class III malocclusion are different after mandibular setback and maxillary advancement (MSMA) compared with mandibular setback (MS) and that upper airway changes and the amount of jaw movement are correlated. PATIENTS AND METHODS: Skeletal Class III patients who underwent MS surgery or MSMA surgery were included in this retrospective cohort study. Cone beam computed tomography scans were acquired before and 3 months after surgery...
June 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28731541/demography-and-genome-divergence-of-lake-and-stream-populations-of-an-east-african-cichlid-fish
#12
Bernd Egger, Marius Rösti, Astrid Böhne, Olivia Roth, Walter Salzburger
Disentangling the processes and mechanisms underlying divergent selection in diversification is facilitated by the comparative study of replicate population pairs that have diverged along a similar environmental gradient. Such a setting is realized in a cichlid fish from southern Lake Tanganyika, Astatotilapia burtoni, which occurs both within the lake proper as well as in various affluent rivers. Previous studies demonstrated that independent lake and stream populations show respectively similar adaptations to the two habitat regimes...
July 21, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28731403/safe-and-sustainable-the-extracranial-approach-toward-frontoethmoidal-meningoencephalocele-repair
#13
Paul I Heidekrueger, Myat Thu, Wolfgang Mühlbauer, Charlotte Holm-Mühlbauer, Philippe Schucht, Hans Anderl, Heinrich Schoeneich, Kyawzwa Aung, Mg Mg Ag, Ag Thu Soe Myint, Sabrina Juran, Thiha Aung, Denis Ehrl, Milomir Ninkovic, P Niclas Broer
OBJECTIVE Although rare, frontoethmoidal meningoencephaloceles continue to pose a challenge to neurosurgeons and plastic reconstructive surgeons. Especially when faced with limited infrastructure and resources, establishing reliable and safe surgical techniques is of paramount importance. The authors present a case series in order to evaluate a previously proposed concise approach for meningoencephalocele repair, with a focus on sustainability of internationally driven surgical efforts. METHODS Between 2001 and 2016, a total of 246 patients with frontoethmoidal meningoencephaloceles were treated using a 1-stage extracranial approach by a single surgeon in the Department of Neurosurgery of the Yangon General Hospital in Yangon, Myanmar, initially assisted by European surgeons...
July 21, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28731395/nasoseptal-flap-necrosis-a-rare-complication-of-endoscopic-endonasal-surgery
#14
Joseph D Chabot, Chirag R Patel, Marion A Hughes, Eric W Wang, Carl H Snyderman, Paul A Gardner, Juan C Fernandez-Miranda
OBJECTIVE The vascularized nasoseptal flap (NSF) has become the workhorse for skull base reconstruction during endoscopic endonasal surgery (EES) of the ventral skull base. Although infrequently reported, as with any vascularized flap the NSF may undergo ischemic necrosis and become a nidus for infection. The University of Pittsburgh Medical Center's experience with NSF was reviewed to determine the incidence of necrotic NSF in patients following EES and describe the clinical presentation, imaging characteristics, and risk factors associated with this complication...
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28730682/structure-and-development-of-the-subesophageal-zone-of-the-drosophila-brain-i-segmental-architecture-compartmentalization-and-lineage-anatomy
#15
Volker Hartenstein, Jaison J Omoto, Kathy T Ngo, Darren Wong, Philipp A Kuert, Heinrich Reichert, Jennifer K Lovick, Amelia Younossi-Hartenstein
The subesophageal zone (SEZ) of the Drosophila brain houses the circuitry underlying feeding behavior and is involved in many other aspects of sensory processing and locomotor control. Formed by the merging of four neuromeres, the internal architecture of the SEZ can be best understood by identifying segmentally reiterated landmarks emerging in the embryo and larva, and following the gradual changes by which these landmarks become integrated into the mature SEZ during metamorphosis. In previous works, the system of longitudinal fibers (connectives) and transverse axons (commissures) has been utilized as a scaffold that provides internal landmarks for the neuromeres of the larval ventral nerve cord...
July 21, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28730570/structural-connectivity-differences-in-essential-tremor-with-and-without-resting-tremor
#16
Maria Eugenia Caligiuri, Gennarina Arabia, Gaetano Barbagallo, Angela Lupo, Maurizio Morelli, Rita Nisticò, Fabiana Novellino, Andrea Quattrone, Maria Salsone, Basilio Vescio, Andrea Cherubini, Aldo Quattrone
In this work, we investigated motor network structure in patients affected by essential tremor (ET) with or without resting tremor, using probabilistic tractography of the cerebello-thalamo-basal ganglia-cortical loop. Twenty-five patients with ET, twenty-two patients with ET associated with resting tremor (rET), and twenty-five age- and sex-matched healthy controls were included in the study. All participants underwent whole-brain 3D T1-weighted and diffusion-weighted MRI, and DAT-SPECT. Probabilistic tractography was performed on diffusion data in network mode, reconstructing connections between the different structures of the cerebello-thalamo-basal ganglia-cortical loop...
July 20, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28729774/clinical-applications-of-free-medial-tibial-flap-with-posterior-tibial-artery-for-head-and-neck-reconstruction-after-tumor-resection
#17
Qi Zhong, Jugao Fang, Zhigang Huang, Xiaohong Chen, Lizhen Hou, Yang Zhang, Pingdong Li, Hongzhi Ma, Hongbo Xu
Tumor resection causes damage in the head and neck which creates problems in swallowing, chewing, articulation, and vision, all of which seriously affect patients' quality of life. In this work, we evaluated the application of a free medial tibial flap in reconstruction of head and neck defects after tumor resection. We discussed the anatomy, surgical technique, and the advantages and disadvantages of the flap. We found several benefits for the flap, such as, it is especially effective for the defects that require thin-layer epithelium to cover or the separated soft tissue defect; a two-team approach can be used because the donor site is far away from the head and neck; and the flap is easy to integrate because of the subcutaneous fat layer of the free medial tibial flap is thin and the flap is soft...
June 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28729014/evaluating-ureteral-patency-in-the-post-indigo-carmine-era-a-randomized-controlled-trial
#18
Cara Grimes, Sonali Patankar, Timothy Ryntz, Nisha Philip, Khara Simpson, Mireille Truong, Connie Young, Arnold Advincula, Obianuju S Madueke-Laveaux, Ryan Walters, Cande V Ananth, Jin Hee Kim
BACKGROUND: Many gynecologic, urologic and pelvic reconstructive surgeries require accurate intra-operative evaluation of ureteral patency. OBJECTIVE: We performed a randomized controlled trial to compare surgeon satisfaction with four methods of evaluating ureteral patency during cystoscopy at the time of benign gynecologic or pelvic reconstructive surgery: oral phenazopyridine, intravenous sodium fluorescein, mannitol bladder distention and normal saline bladder distention...
July 17, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28728860/-palimpsest-scar-lesions-in-a-context-of-torture-darfur-sudan
#19
P Charlier, F Bou Abdallah, Y Mostefai Dulac, S Deo, S Jacqueline, L Brun, C Hervé
BACKGROUND: As a result of the current exponentially growing refugee population from the Middle-East and East Africa (Sudan, Darfur, Eritrea), clinicians (including forensic pathologists) are seeing atypical skin lesions, mainly of a traumatic nature, but in some cases associated with long-standing lesions related to ethnic practices. PATIENTS AND METHODS: A case of torture sequelae is presented herein in a patient originally from Darfur (Sudan): cutaneous incisions were made on old scars several times using a knife...
July 17, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28728303/-enhancing-soft-tissue-reattachment-with-artificial-mesh-in-joint-endoprosthetic-reconstruction-for-bone-tumors
#20
J S Lin, R Chen, W Yan, D D Chen
Objective: To investigate the operative method and clinical application of the BARD(®) Mesh in enhancing joint stability and function of endoprosthetic reconstruction for bone tumors. Methods: From Jan 2013 to Jun 2015, the clinical data of 51 patients aged (44.75±23.18) years underwent wide resection of tumor and endoprosthetic reconstruction using the BARD(®) Mesh were collected. Among them, 27 were male and 24 were female. The surgical treatments received by these patients included 5 shoulder arthroplasties, 12 elbow replacements, 12 hip replacements and 32 knee replacements (including 24 femoral tumors and 8 tibial tumors)...
July 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
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