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https://www.readbyqxmd.com/read/28731802/neurovascular-structures-at-risk-with-curved-retrograde-ttc-fusion-nails
#1
Cesar de Cesar Netto, David Johannesmeyer, Brent Cone, Ibukunoluwa Araoye, Parke William Hudson, Bahman Sahranavard, Michael Johnson, Ashish Shah
BACKGROUND: The purpose of this study was to assess the risk of iatrogenic injury to plantar neurovascular structures of the foot during insertion of a curved retrograde tibiotalocalcaneal (TTC) fusion nail. MATERIAL AND METHODS: Ten below-knee thawed fresh-frozen cadaveric specimens underwent curved retrograde nailing of the ankle. The shortest distance between the nail and the main plantar neurovascular branches and injured structures were recorded during dissection...
July 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28730225/purkinje-cells-pathology-in-schizophrenia-a-morphometric-approach
#2
Ioannis Asterios Mavroudis, Foivos Petrides, Marina Manani, Fotios Chatzinikolaou, Alin Stelian Ciobică, Manuela Pădurariu, Dimitrios Kazis, Samuel Ndugu Njau, Vasiliki George Costa, Stavros John Baloyannis
OBJECTIVES: Schizophrenia is a brain disorder that affects more than 21 million people worldwide. Ventricle enlargement and reduction in the volume of the temporal lobe overall and in medial temporal structures constitutes the main macroscopic findings, whilst synaptic and spinal changes as well as gliosis in the hippocampal formation, the prefrontal and the entorhinal cortex stand among cardinal microscopic findings in the schizophrenic brains. In recent years, accumulated evidence comes to light about the role of cerebellum in the pathophysiology of schizophrenia...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28727707/continuing-anti-thrombotic-medication-during-low-to-intermediate-risk-spinal-procedures-a-retrospective-evaluation
#3
Noud van Helmond, Wesley Day, Kenneth B Chapman
BACKGROUND: The current American Society of Regional Anesthesia (ASRA) guidelines recommend discontinuing anti-thrombotic therapy prior to any interventional spine procedures to decrease the incidence of bleeding complications. However, discontinuing anti-thrombotics may pose considerable danger in terms of cerebrovascular and cardiovascular events. Recent evidence suggests that some spinal interventions may still be performed safely with anti-thrombotics on board and some practitioners thus elect to continue certain anti-thrombotics for these procedures...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28719561/arterial-topographic-anatomy-near-the-femoral-head-neck-perforation-with-surgical-relevance
#4
Paulo Rego, Vasco Mascarenhas, Diego Collado, Ana Coelho, Luis Barbosa, Reinhold Ganz
BACKGROUND: Knowledge of the vascular supply of the femoral head is crucial for hip-preserving surgical procedures. The critical area for reshaping cam deformity is at the retinacular vessel penetration, an area with ill-defined topographic anatomy. We performed a cadaver study of the extension of the lateral retinaculum near the head-neck junction, distribution of the arterial vascular foramina, and initial intracapital course of these vessels. METHODS: In 16 fresh proximal parts of the femur without head-neck deformities, the deep branch of the medial femoral circumflex artery was injected with gadolinium for magnetic resonance imaging (MRI) sequences to identify arterial structures...
July 19, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28703910/medialis-pedis-flap-for-reconstruction-of-weight-bearing-heel
#5
Jin Sung Park, Jae Hoon Lee, Jung Suk Lee, Jong Hun Baek
BACKGROUND: Among the various flaps available for the reconstruction of the heel, a medial plantar flap has been widely accepted as the most ideal. This flap, however, involves the medial plantar nerve and its cutaneous branches, which may lead to postoperative hyperesthesia and dual sensation. The purpose of this report was to report the outcomes of the use of the medialis pedis flap for the coverage of weight bearing heel soft tissue defect. PATIENTS AND METHODS: A total of 8 patients who had undergone reconstruction of the weight bearing heel with the medialis pedis flap were enrolled for this study...
July 13, 2017: Microsurgery
https://www.readbyqxmd.com/read/28695607/visualization-of-the-tentorial-innervation-of-human-dura-mater
#6
Shin-Hyo Lee, Kang-Jae Shin, Ki-Seok Koh, Wu-Chul Song
Posterior projections of the ophthalmic division of the trigeminal nerve (the ophthalmic nerve) are distributed in the tentorium cerebelli as recurrent meningeal branches. We investigated the morphological tentorial distribution of the ophthalmic nerve. Fifty-two sides of the tentorium cerebelli and adjacent dura mater obtained from 29 human specimens were stained using Sihler's method to examine the nerve fibres in the dural sheets. The innervation patterns of the tentorium cerebelli were classified into the following four types according to their distributions: Type 1, where nerve fibres projected to both the straight and transverse sinuses; Type 2, where nerve fibres projected only to the transverse sinus and lateral convexity; Type 3, where nerve fibres projected medially only to the straight sinus and the posterior part of the falx cerebri; and Type 4, where the nerve fibres terminated within the tentorium cerebelli...
July 10, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28690952/targeted-radiofrequency-ablation-as-an-adjunct-in-treatment-of-lumbar-facet-cysts
#7
Jesse Hatgis, Michelle Granville, Aldo Berti, Robert E Jacobson
Lumbar facet cysts are frequently found in patients with facet degeneration and segmental instability. When the facet cyst is localized in the neural foramina and lateral recess or becomes large, it can cause radiculopathy or neurogenic claudication. These symptomatic cysts are typically treated interventionally with drainage and a corticosteroid injection or attempts via overinflation to rupture the cyst; however, these procedures have a significant recurrence rate (up to 50%) and often need to be repeated or lead to lumbar surgery if unsuccessful...
June 6, 2017: Curēus
https://www.readbyqxmd.com/read/28690866/serotonergic-neurons-in-the-ventral-nerve-cord-of-chilopoda-a-mandibulate-pattern-of-individually-identifiable-neurons
#8
Andy Sombke, Torben Stemme
BACKGROUND: Given the numerous hypotheses concerning arthropod phylogeny, independent data are needed to supplement knowledge based on traditional external morphology and modern molecular sequence information. One promising approach involves comparisons of the structure and development of the nervous system. Along these lines, the morphology of serotonin-immunoreactive neurons in the ventral nerve cord has been investigated in numerous tetraconate taxa (Crustacea and Hexapoda). It has been shown that these neurons can be identified individually due to their comparably low number, characteristic soma position, and neurite morphology, thus making it possible to establish homologies at the single cell level...
2017: Zoological Letters
https://www.readbyqxmd.com/read/28689395/prognostic-factor-analysis-for-management-of-chronic-neck-pain-can-we-predict-the-severity-of-neck-pain-with-lateral-cervical-curvature
#9
Han Yu Seong, Moon Kyu Lee, Sang Ryong Jeon, Sung Woo Roh, Seung Chul Rhim, Jin Hoon Park
OBJECTIVE: Although little is known about its origins, neck pain may be related to several associated anatomical pathologies. We aimed to characterize the incidence and features of chronic neck pain and analyze the relationship between neck pain severity and its affecting factors. METHODS: Between March 2012 and July 2013, we studied 216 patients with chronic neck pain. Initially, combined tramadol (37.5 mg) plus acetaminophen (325 mg) was administered orally twice daily (b...
July 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28664501/tarsal-tunnel-syndrome-still-more-opinions-than-evidence-status-of-the-art
#10
REVIEW
Pietro Emiliano Doneddu, Daniele Coraci, Claudia Loreti, Giulia Piccinini, Luca Padua
Tarsal tunnel syndrome is an entrapment neuropathy of the posterior tibial nerve or its terminal branches within its fibro-osseous tunnel beneath the flexor retinaculum on the medial side of the ankle. The condition is frequently underdiagnosed leading to controversies regarding its epidemiology and to an intense debate in the literature. With the advent of nerve imaging techniques, the diagnostic confirmation and the etiological identification have become more accurate. However, management of this entrapment neuropathy remains challenging because of many intervention strategies but limited robust evidence...
June 29, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28663257/smooth-muscle-cells-derived-from-second-heart-field-and-cardiac-neural-crest-reside-in-spatially-distinct-domains-in-the-media-of-the-ascending-aorta
#11
Hisashi Sawada, Debra L Rateri, Jessica J Moorleghen, Mark W Majesky, Alan Daugherty
OBJECTIVE: Smooth muscle cells (SMCs) of the proximal thoracic aorta are embryonically derived from the second heart field (SHF) and cardiac neural crest (CNC). However, distributions of these embryonic origins are not fully defined. The regional distribution of SMCs of different origins is speculated to cause region-specific aortopathies. Therefore, the aim of this study was to determine the distribution of SMCs of SHF and CNC origins in the proximal thoracic aorta. APPROACH AND RESULTS: Mice with repressed LacZ in the ROSA26 locus were bred to those expressing Cre controlled by either the Wnt1 or Mef2c (myocyte-specific enhancer factor 2c) promoter to trace CNC- and SHF-derived SMCs, respectively...
June 29, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28658746/a-unique-triad-of-muscular-vascular-and-nervous-variations-in-upper-limb
#12
Dharmaraj Wamanrao Tamgire, Yogesh Ashok Sontakke, Sssn Rajasekhar, Karuppusamy Aravindhan
Multiple muscular and neurovascular anomalies in upper limb are reported continuously in medical literature because of their clinical significance. A unique case of the triad of variations was encountered during routine dissection activity. The variations observed were: 1) Accessory third head of biceps brachii; 2) High division of Brachial Artery; 3) Communication between Musculocutaneous Nerve and Median Nerve. Taken independently these variations are common but it is rare in a single cadaver. These abnormalities were found unilaterally on the right arm of the cadaver...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28655569/the-hypaxial-origin-of-the-epaxially-located-rhomboid-muscles
#13
Minu Saberi, Qin Pu, Petr Valasek, Tannaz Norizadeh Abbariki, Ketan Patel, Ruijin Huang
In vertebrates, skeletal muscles of the body are made up of epaxial and hypaxial muscles based on their innervation and relative position to the vertebral column. The epaxial muscles are innervated by the dorsal branches of the spinal nerves and comprise the intrinsic (deep) back muscles, while the hypaxial muscles are innervated by the ventral branches of the spinal nerves including the plexus and consist of a heterogeneous group of intercostal, abdominal, and limb as well as girdle muscles. The canonical view holds that the epaxial muscles are derived from the medial halves of the somites, whereas the hypaxial muscles are all derived from the lateral somitic halves...
June 24, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28643308/-anatomical-strategies-of-henle-trunk-in-laparoscopic-right-hemi-colectomy-for-right-colon-cancer
#14
Bo Feng, Xialin Yan, Sen Zhang, Pei Xue, Zirui He, Minhua Zheng
The advancement of laparoscopic surgery serves as a trigger for better understanding of the vascular structure at the inferior border of the pancreas, especially Henle trunk. Henle trunk was first found as convergence to superior mesenteric vein (SMV) conjoined by sub-right colon vein (SRCV) and right gastroepiploic vein (RGEV), but decades later, anterior superior pancreatic duodenal vein (ASPDV) was described as another conjoint vein of Henle trunk. These tributaries are the basic elements of Henle trunk in early years' study...
June 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28634319/common-hepatic-artery-quadrifurcation-associated-with-right-hepatic-artery-from-superior-mesenteric-artery-during-laparoscopic-total-splenopancreasectomy
#15
Francesco Caruso, Giorgio Alessandri, Francesca Ciccarese, Giovanni Cesana, Matteo Uccelli, Giorgio Castello, Roberta Villa, Stefano Olmi
Hepatobiliopancreatic surgery is challenging becouse of the complexity of resections and reconstructions and variability of vascular anatomy. The arterial vascularization of the liver is susteined by the common hepatic artery (CHA) that originates from the celiac trunk (CT). The CHA bifurcates into the gastroduodenal artery (GDA) and proper hepatic artery (PHA) 0.5-1 cm medial to the common bile duct (CBD), and the PHA bifurcates into a right and a left branch at hepatic hilum. The most frequent variants are the right hepatic artery (RHA) from the superior mesenteric artery (SMA), the left hepatic artery (LHA) from the left gastric artery (LGA) or a combination of these two variants...
June 12, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28624856/the-glenocapsular-ligament-and-the-posterosuperior-part-of-the-joint-capsule-of-the-shoulder-are-well-vascularized
#16
Elle Põldoja, Madis Rahu, Kristo Kask, Jüri-Toomas Kartus, Imke Weyers, Ivo Kolts
PURPOSE: A detailed structural anatomy of the posterosuperior shoulder capsule and "glenocapsular ligament" is still rather unknown. The purpose of this study was meticulously to investigate and describe the structure and blood supply of the glenocapsular ligament on the posterosuperior shoulder joint capsule. METHOD: Sixteen fixed and twelve fresh cadaveric shoulder specimens with a mean age of 73.4 (±6.4) years were analysed. Dissection without arterial injection was performed on the 16 fixed specimens-using an alcohol-formalin-glycerol solution...
June 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28624053/radiologic-evaluation-of-vasculobiliary-anatomy-in-the-umbilical-fissure
#17
Gu-Wei Ji, Fei-Peng Zhu, Ke Wang, Yong-Xiang Xia, Chen-Yu Jiao, Zi-Cheng Shao, Xiang-Cheng Li
BACKGROUND: Preoperative evaluation of vasculobiliary anatomy in the umbilical fissure (U-point) is pivotal for perihilar cholangiocarcinoma (PCCA) applied to right-sided hepatectomy. The purpose of our study was to review the vasculobiliary anatomy in the U-point using three-dimensional (3D) reconstruction technique, to investigate the diagnostic ability of 2D scans to evaluate anatomic variations, and to discuss its surgical implications. METHODS: A retrospective study of 159 patients with Bismuth type I, II, and IIIa PCCA, who received surgery at our institution from November 2012 to September 2016, was conducted...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28614090/three-dimensional-topography-of-the-supratrochlear-nerve-with-reference-to-the-lacrimal-caruncle-and-its-danger-zone-in-asians
#18
Young-Chun Gil, Shin-Hyo Lee, Kang-Jae Shin, Wu-Chul Song, Ki-Seok Koh, Hyun Jin Shin
BACKGROUND: The supratrochlear nerve (STN) is relatively superficial and therefore vulnerable to iatrogenic injury. OBJECTIVE: To elucidate the course of STN with reference to the lacrimal caruncle, with the aim of preventing nerve injury during surgery in the forehead region. MATERIALS AND METHODS: Thirty-four hemifaces from 18 Korean cadavers were dissected. The vertical line through the apex of lacrimal caruncle and the horizontal line through the supraorbital margin were used as horizontal and vertical reference lines, respectively...
June 12, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28611938/anatomic-study-of-the-vascular-perfusion-of-the-sternum-and-its-clinical-relevance-in-deep-sternal-wound-infection
#19
Nick Spindler, Florian Kaatz, Christine Feja, Christian Etz, Friedrich-Wilhelm Mohr, Ingo Bechmann, Christoph Josten, Stefan Langer, Sabine Loeffler
Introduction: Deep sternal wound infections (DSWI) are a rare but devastating complication after median sternotomy. Minor perfusion in bone and soft tissue, especially after recruiting the internal mammary artery for bypass supports the development of wound infection and nonunion of the sternal bone. The aim of the study was the macroscopic and radiological presentation of the vascular system supplying the sternum, in particular the compensating blood supply routes in the event that the internal mammary artery is no longer available after use as a bypass vessel...
2017: GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW
https://www.readbyqxmd.com/read/28596462/-pure-amnesia
#20
Koichi Tagawa, Haruki Tokida
Pure amnesia (amnesic syndrome) is an organic brain syndrome characterized by impairment in episodic memory, with either an anterograde or sometimes retrograde loss of memories. Although episodic memory is impaired, semantic memory, immediate memory, and procedural memory are preserved. The Papez circuit is a network of nerve fibers and nerve centers that starts and ends in the hippocampus travelling by way of the fornix, mammillary bodies, anterior thalamic nuclei, cingulate gyrus, and parahippocampal gyrus...
June 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
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