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https://www.readbyqxmd.com/read/28529045/influence-of-preoperative-imaging-on-fibula-free-flap-harvesting
#1
R Gryseleyn, M Schlund, P Pigache, T Wojcik, G Raoul, J Ferri
INTRODUCTION: The fibula free flap (FFF) is the gold standard for the reconstruction of large maxillofacial defects. Magnetic resonance angiography (MRA) seems to supersede digital subtraction angiography (DSA) as the reference in preoperative evaluation, being non-invasive and having equivalent diagnostic results. The aim of this study was to assess the impact of preoperative MRA versus DSA on the viability of FFF and its success rate. MATERIAL AND METHODS: A total of 216 patients, who underwent mandibular or maxillary FFF reconstruction from January 1995 to January 2011, were retrospectively included in the study...
May 18, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28528897/lateral-lumbar-interbody-fusion-at-the-lumbosacral-junction
#2
Timothy L T Siu, Kainu Lin
Due to the obstruction of the iliac crest and the retroperitoneal vessels, lateral lumbar interbody fusion (LLIF) is generally considered contraindicated at the lumbosacral junction (LSJ). In particular the 'rise' of the psoas from the vertebral column in the lower lumbar segments has been associated with significant overlap of the lumbar plexus with the vertebral body and exclusion of a safe transpsoas entry. However in selected individuals anatomical variations may help circumvent the difficulties and the anatomical corridor posterior to the lumbar plexus may provide an alternative to the conventional anterior approach...
May 18, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28523346/a-case-of-double-common-bile-duct-in-a-deceased-donor-for-transplantation
#3
Hajime Imamura, Susumu Eguchi, A M James Shapiro, Tatsuya Kin
A double common bile duct is extremely rare among the anatomical variations in the biliary tract system. We report an incidentally encountered case of the double common bile duct and discuss the novel anatomical findings of the accessory common bile duct from the viewpoint of embryology. A unique point of our case is that the accessory common bile duct bifurcated at the level of the intrapancreatic bile duct. There is no similar case in the previous literature among type II double common bile duct in the viewpoint of anatomical findings of the accessory common bile duct...
May 18, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28522371/c1-lateral-mass-screw-insertion-from-the-caudal-dorsal-to-the-cranial-ventral-direction-as-an-alternate-method-for-c1-fixation-a-quantitative-anatomical-and-morphometric-evaluation
#4
Mehmet Senoglu, Ali Karadag, Burak Kinali, Baran Bozkurt, Cigdem Icke, Duygu Halacoglu Savran, Erik H Middlebrooks
OBJECT: C1 lateral mass screw has been widely used for fixation of the upper cervical spine. However, traditional fixation methods are not without complication. Morphometric measurement of an alternative approach is conducted. METHODS: Three-dimensional CT scans of the cervical spine obtained in 100 adults were evaluated, and key measurements were determined for screw entry points, trajectories, and screw lengths for placement of a C1 screw via this alternate approach...
May 15, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28522228/accessory-subscapularis-muscle%C3%A2-%C3%A2-a-forgotten-variation
#5
L A S Pires, C F C Souza, A R Teixeira, T F O Leite, M A Babinski, C A A Chagas
The quadrangular space is a space in the axilla bounded by the inferior margin of the teres minor muscle, the superior margin of the teres major muscle, the lateral margin of the long head of the triceps brachii muscle and the surgical neck of the humerus, medially. The axillary nerve (C5-C6) and the posterior circumflex humeral artery and veins pass through this space in order to supply their territories. The subscapularis muscle is situated into the scapular fossa and inserts itself into the lesser tubercle of the humerus, thus helping stabilize the shoulder joint...
May 15, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28521354/surgical-microanatomy-of-the-posterior-condylar-emissary-vein-and-its-anatomical-variations-for-the-transcondylar-fossa-approach
#6
Nakao Ota, Rokuya Tanikawa, Tsutomu Yoshikane, Masataka Miyama, Takanori Miyazaki, Yu Kinoshita, Hidetoshi Matsukawa, Takeshi Yanagisawa, Fumihiro Sakakibara, Go Suzuki, Norihiro Saito, Shiro Miyata, Kosumo Noda, Toshiyuki Tsuboi, Rihei Takeda, Hiroyasu Kamiyama, Sadahisa Tokuda, Kyousuke Kamada
BACKGROUND: It is essential to identify and be aware of the anatomy of the posterior condylar emissary vein (PCEV) for achieving an adequate operative field for the transcondylar fossa approach (TCFA). OBJECTIVE: To describe the variations in the drainage patterns of PCEVs and the technical issues encountered in such cases. METHODS: This was a retrospective analysis of the anatomy of PCEVs in 104 sides in 52 cases treated by the TCFA. Preoperative findings of multidetector-row computed tomography (CT) and CT venography (CTV) were compared with the intraoperative findings...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28520743/whole-brain-volume-changes-and-its-correlation-with-clinical-symptom-severity-in-patients-with-schizophrenia-a-dartel-based-vbm-study
#7
Gwang-Won Kim, Yun-Hyeon Kim, Gwang-Woo Jeong
The purpose of this study was to evaluate gray matter (GM) and white matter (WM) volume alterations in whole-brain structures in patients with schizophrenia and healthy controls using voxel-based morphometry (VBM), and further to assess the correlation between GM and WM volume variations and symptom severity in schizophrenia. A total of 22 patients with schizophrenia and 22 age-matched healthy controls participated. Magnetic resonance image data were processed using SPM8 software with diffeomorphic anatomical registration via an exponentiated Lie algebra (DARTEL) algorithm...
2017: PloS One
https://www.readbyqxmd.com/read/28516728/increased-heterogeneity-of-airway-calibre-in-adult-rats-after-hypoxia-induced-intrauterine-growth-restriction
#8
Kimberley C W Wang, Jude S Morton, Sandra T Davidge, Alexander N Larcombe, Alan L James, Graham M Donovan, Peter B Noble
BACKGROUND AND OBJECTIVE: Intrauterine growth restriction (IUGR) is associated with asthma development. We hypothesized that IUGR disrupts airway development leading to postnatal structural abnormalities of the airway that predispose to disease. This study therefore examined structural changes to the airway and lung in a rat model of maternal hypoxia-induced IUGR. METHODS: Pregnant rats were housed under hypoxic conditions (11.5% O2 ) from gestational days (GDs) 13 to 20 (pseudoglandular-canalicular stages, i...
May 17, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28515965/anatomic-variations-of-the-right-portal-vein-prevalence-imaging-features-and-implications-for-successful-transjugular-intrahepatic-portosystemic-shunt-creation
#9
Senthil S Gunasekaran, Ron C Gaba
Given the widespread use of transjugular intrahepatic portosystemic shunt (TIPS) creation for the treatment of portal hypertensive complications, a working knowledge of portal venous anatomy is critical for interventional radiologists. The right portal vein - which is most commonly accessed during TIPS - is subject to various anatomic variants that may potentially impact procedure success. This pictorial essay characterizes the anatomic patterns of the right portal vein branching in terms of type and frequency based on case series review...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28515589/spectrum-of-pulmonary-valve-morphology-and-its-relationship-to-pulmonary-trunk-in-tetralogy-of-fallot
#10
Binita R Chacko, George K Chiramel, Leena R Vimala, Devi A Manuel, Elizabeth Joseph, K Reka
BACKGROUND: Tetralogy of Fallot (TOF) is a complex congenital heart disease with anatomic variations. Although the pulmonary valve in TOF is abnormal, it has not been studied well, especially on newer imaging modalities such as multidetector computed tomography (CT), which gives excellent anatomic detail. AIMS: The aim of this study was to assess the morphology of pulmonary valve in TOF on CT and evaluate its association with the degree of hypoplasia of infundibulum and pulmonary trunk...
January 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28515458/floccular-fossa-size-is-not-a-reliable-proxy-of-ecology-and-behaviour-in-vertebrates
#11
S Ferreira-Cardoso, R Araújo, N E Martins, G G Martins, S Walsh, R M S Martins, N Kardjilov, I Manke, A Hilger, R Castanhinha
The cerebellar floccular and parafloccular lobes are housed in fossae of the periotic region of the skull of different vertebrates. Experimental evidence indicates that the lobes integrate visual and vestibular information and control the vestibulo-ocular reflex, vestibulo-collic reflex, smooth pursuit and gaze holding. Multiple paleoneuroanatomy studies have deduced the behaviour of fossil vertebrates by measuring the floccular fossae (FF). These studies assumed that there are correlations between FF volume and behaviour...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28512052/cystic-dilation-of-the-ventriculus-terminalis-cdvt-report-of-six-surgical-cases-treated-with-cyst-subarachnoid-shunting-using-t-catheter
#12
Liang Zhang, Zhifeng Zhang, Wuyang Yang, Wenqing Jia, Yulun Xu, Jun Yang
OBJECT: Cystic dilation of the ventriculus terminalis (CDVT) is a rare anatomical variation and may become symptomatic. Existing literature regarding CDVT is limited, and as a result, the clinical characteristics and management strategy of CDVT is unclear. We report in this study six cases of CDVT in our institution, and provide a review of current literature. METHODS: We included six patients with CDVT in Beijing Tiantan Hospital between September 2010 and June 2015...
May 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28511527/temporary-blindness-after-inferior-alveolar-nerve-block
#13
Animesh Barodiya, Rishi Thukral, Shaila Mahendra Agrawal, Anshul Rai, Siddharth Singh
Inferior Alveolar Nerve Block (IANB) anaesthesia is one of the common procedures in dental clinic. This procedure is safe, but complications may still occur. Ocular complications such as diplopia, loss of vision, or ophthalmoplegia are extremely rare. This case report explains an event where due to individual anatomic variation of the sympathetic vasoconstrictor nerve and maxillary and middle meningeal arteries, intravascular administration of anaesthetic agent caused unusual ocular signs and symptoms such as temporary blindness...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28511520/effect-of-trauma-to-primary-tooth-on-permanent-maxillary-incisors-a-clinical-case-report
#14
Bhawana Gupta, Sachin Gupta, Jitesh Wadhwa, Alpa Gupta
Trauma to primary tooth leads to abnormal variations in crown and root canals of permanent teeth that presents a challenge in diagnosis and clinical management to the practitioner. This article presents a detailed case report of the endodontic treatment of a three canalled maxillary central incisor and maxillary lateral incisor having single canal with open apex linked with periodontal defect. Root canals were prepared with hand files and canals were irrigated with 2.5% sodium hypochlorite solution. Calcium hydroxide was placed as an intracanal medicament...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28511514/evaluation-of-relative-position-of-mandibular-foramen-in-children-as-a-reference-for-inferior-alveolar-nerve-block-using-orthopantamograph
#15
Navin Hadadi Krishnamurthy, Surej Unnikrishnan, Jaya Agali Ramachandra, Veena Arali
INTRODUCTION: The Mandibular Foramen (MF) is a landmark for administering local anaesthetic solution for Inferior Alveolar Nerve Block (IANB). The position of MF shows considerable variation among different ethnicity, ages and on either sides even within the same individual. Failure to achieve IANB leading to repeated injection of the local anaesthetic solution will not only pose a behaviour problem in children but can also lead to systemic toxic level of anaesthetic solution being administered...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28510808/development-of-a-contouring-guide-in-three-different-head-set-ups-for-hippocampal-sparing-radiotherapy-a-practical-approach
#16
Saide Di Biase, Marianna Trignani, Luciana Caravatta, Paul Ioan Voicu, Clelia Di Carlo, Annamaria Vinciguerra, Antonietta Augurio, Francesca Perrotti, Valentina Panara, Domenico Genovesi
BACKGROUNDS: Irradiation of the hippocampus plays a role in neurocognitive toxicity. Its delineation is complex and in practice different head position can vary hippocampus morphology on axial images; so atlas in a single standard position can result ineffective to describe different hippocampal morphologies in different head set-up. The purpose of our study was to develop a guide based on magnetic resonance imaging for hippocampus delineation in three different head set-ups. MATERIALS AND METHODS: Three patients were selected to elaborate our guide...
May 16, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28510777/anatomical-characterization-of-the-nasolacrimal-canal-based-on-computed-tomography-in-children-with-complex-congenital-nasolacrimal-duct-obstruction
#17
Chengyue Zhang, Gang Yu, Yanhui Cui, Qian Wu, Wenbin Wei
PURPOSE: To characterize anatomical variations of the nasolacrimal canal in patients with complex congenital nasolacrimal duct obstruction. METHODS: Retrospective case series of 25 children with congenital nasolacrimal duct obstruction. All children had failed probings and were examined by computed tomography. An analysis of imaging data is presented. RESULTS: Anomalous development of the nasolacrimal canal was confirmed on computed tomography...
May 15, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28510195/meso-or-xeromorphic-foliar-characters-of-asteraceae-in-a-xeric-scrub-of-mexico
#18
Patricia Rivera, José Luis Villaseñor, Teresa Terrazas
BACKGROUND: The anatomical traits associated with water deficit are also observed in plants growing in poor soils. The species may resist water deficit through three main strategies: escape, avoid or tolerate. The Pedregal de San Ángel Ecological Reserve (REPSA), Mexico, is an environment with low nutrient soil and low water availability. It is set on the basalt formation derived from the Xitle volcano eruption. The main vegetation type is characterized as xerophytic shrub. Thus we expect that species growing in this community will show leaf xeromorphic traits and may have any of the three response strategies...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28508279/the-coexistence-of-both-replaced-proper-hepatic-and-gastroduodenal-arteries-due-to-the-common-hepatic-artery-absence
#19
Konstantinos Natsis, Maria Piagkou, Nikolaos Lazaridis, Georgios Koimtzis, Stylianos Apostolidis
Anatomical variants of the celiac trunk (CT) branches and especially these of hepatic arteries (HAs) are among the most common variants of the arterial tree. The knowledge of the wide variability in hepatic arterial supply is of paramount importance in hepatobiliary, pancreatic, gastric, and esophageal surgery, as well as in liver transplantations. The purpose of this case report is to describe a rare variant discovered during abdominal dissection of a 74-year-old male cadaver of Greek origin, in which the common hepatic artery was absent and its branches, the proper hepatic artery (PHA) and the gastroduodenal artery (GDA) had an aberrant and separate origin...
May 15, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28508252/anatomical-variants-in-prostate-artery-embolization-a-pictorial-essay
#20
Francisco Cesar Carnevale, Guilherme Rebello Soares, Andre Moreira de Assis, Airton Mota Moreira, Sardis Honoria Harward, Giovanni Guido Cerri
Prostate artery embolization (PAE) has emerged as a new treatment option for patients with symptomatic benign prostatic hyperplasia. The main challenges related to this procedure are navigating arteries with atherosclerosis and anatomical variations, and the potential risk of non-target embolization to pelvic structures due to the presence of collateral shunts and reflux of microparticles. Knowledge of classical vascular anatomy and the most common variations is essential for safe embolization, good clinical practice, and optimal outcomes...
May 15, 2017: Cardiovascular and Interventional Radiology
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