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https://www.readbyqxmd.com/read/28781916/nursing-review-section-of-surgical-neurology-international-part-2-lumbar-spinal-stenosis
#1
REVIEW
Nancy E Epstein, Renee D Hollingsworth
BACKGROUND: The lumbar spine includes 5 lumbar vertebral bodies, L1, L2, L3, L4, and L5. At each level, there is a disc space defined by the two bones (vertebral bodies) in the back; for example, there is a disc space at the L5-S1 level etc. The normal front to back (anterior to posterior or AP diameter) measurement of the spinal canal is typically 18-20 mm, but some patients have narrowing called spinal stenosis. METHODS: Lumbar stenosis is defined by two major types...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28714535/neandertal-talus-bones-from-el-sidr%C3%A3-n-site-asturias-spain-a-3d-geometric-morphometrics-analysis
#2
Antonio Rosas, Anabel Ferrando, Markus Bastir, Antonio García-Tabernero, Almudena Estalrrich, Rosa Huguet, Daniel García-Martínez, Juan Francisco Pastor, Marco de la Rasilla
OBJECTIVES: The El Sidrón tali sample is assessed in an evolutionary framework. We aim to explore the relationship between Neandertal talus morphology and body size/shape. We test the hypothesis 1: talar Neandertal traits are influenced by body size, and the hypothesis 2: shape variables independent of body size correspond to inherited primitive features. MATERIALS AND METHODS: We quantify 35 landmarks through 3D geometric morphometrics techniques to describe H...
July 17, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28571788/shape-change-in-the-atlas-with-congenital-midline-non-union-of-its-posterior-arch-a-morphometric-geometric-study
#3
Luis Ríos, Carlos Palancar, Francisco Pastor, Susana Llidó, Juan Alberto Sanchís-Gimeno, Markus Bastir
BACKGROUND CONTEXT: The congenital midline non-union of the posterior arch of the atlas is a developmental variant present at a frequency ranging from 0.7% to 3.9%. Most of the reported cases correspond to incidental findings during routine medical examination. In cases of posterior non-union, hypertrophy of the anterior arch and cortical bone thickening of the posterior arches have been observed and interpreted as adaptive responses of the atlas to increased mechanical stress. PURPOSE: We sought to determine if the congenital non-union of the posterior arch results in a change in the shape of the atlas...
May 29, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28413736/targeted-intraspinal-radiofrequency-ablation-for-lumbar-spinal-stenosis
#4
Robert E Jacobson, Michelle Granville, Jesse Hatgis DO
INTRODUCTION: By using a combination of magnetic resonance imaging (MRI) and computed tomography (CT) of the lumbar spine, it is possible to distinguish between spinal stenosis caused by bone compression and specific soft tissue epidural intraspinal lesions that cause localized spinal canal stenosis and neural compression. Examples include facet cysts and yellow ligament hypertrophy. Many of these patients are elderly with medical comorbidities that make open surgery problematic. MATERIALS & METHODS: This is a study of patients with predominantly soft tissue stenosis being treated with targeted intraspinal radiofrequency (RF) heat ablation...
March 10, 2017: Curēus
https://www.readbyqxmd.com/read/28340495/residents-learning-curve-of-lumbar-transforaminal-epidural-steroid-injections
#5
Holger Joswig, Sarah Roberta Haile, Gerhard Hildebrandt, Martin Nikolaus Stienen
Background and Study Aims There is a paucity of literature on beginners' training and on its connection with patient safety for transforaminal epidural steroid injections (TFESIs). This study retrospectively assessed the learning curves and associated complications of neurosurgery residents never previously exposed to TFESI and compared them with experienced board-certified faculty neurosurgeons (BCFNs). Material and Methods Procedure time in minutes, dose-area product (DAP) in cGy*cm(2), periprocedural observations, and complications in 354 TFESIs for radicular pain secondary to lumbar disk herniation or lumbar spinal stenosis were extracted from operative notes and the electronic infiltration logbook in the per-injection format...
March 24, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28339749/multi-generational-genome-wide-association-studies-identify-chromosomal-regions-associated-with-ascites-phenotype
#6
K J Tarrant, S Dey, R Kinney, N B Anthony, D D Rhoads
Ascites is a multi-faceted disease commonly observed in fast growing broilers, which is initiated when the body is insufficiently oxygenated. A series of events follow, including an increase in pulmonary artery pressure, right ventricle hypertrophy, and accumulation of fluid in the abdominal cavity and pericardium. Advances in management practices along with improved selection programs have decreased ascites incidence in modern broilers. However, ascites syndrome remains an economically important disease throughout the world, causing estimated losses of $100 million per year...
June 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339441/the-role-of-the-ligamentum-flavum-area-as-a-morphological-parameter-of-lumbar-central-spinal-stenosis
#7
Young Uk Kim, Jun Young Park, Doo Hwan Kim, Myung-Hwan Karm, Jae-Young Lee, Jee In Yoo, Sung Won Chon, Jeong Hun Suh
BACKGROUND: Hypertrophy of the ligamentum flavum (LF) has been considered as a major cause of lumbar central spinal stenosis (LCSS). Previous studies have found that ligamentum flavum thickness (LFT) is correlated with aging, disc degeneration, and lumbar spinal stenosis. However, hypertrophy is different from thickness. Thus, to evaluate hypertrophy of the whole LF, we devised a new morphological parameter, called the ligamentum flavum area (LFA). OBJECTIVES: We hypothesized that the LFA is a key morphologic parameter in the diagnosis of LCSS...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28243372/histopathological-analysis-of-ligamentum-flavum-in-lumbar-spinal-stenosis-and-disc-herniation
#8
Idiris Altun, Kasım Zafer Yüksel
STUDY DESIGN: Histopathological analyses were performed in ligamentum flavum (LF) hypertrophy patients with lumbar spinal stenosis (LSS) and lumbar disc herniation (LDH). PURPOSE: The aim of the present study was to evaluate histopathological changes in LF patients with LSS and LDH. OVERVIEW OF LITERATURE: LSS is the most common spinal disorder in elderly patients. This condition causes lower back and leg pain and paresis, and occurs as a result of degenerative changes in the lumbar spine, including bulging of the intervertebral discs, bony proliferation of the facet joints, and LF thickening; among these, LF thickening is considered a major contributor to the development of LSS...
February 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28219354/relationship-between-facet-tropism-and-facet-joint-degeneration-in-the-sub-axial-cervical-spine
#9
Xin Rong, Ziyang Liu, Beiyu Wang, Xuelin Pan, Hao Liu
BACKGROUND: Facet tropism is the angular asymmetry between the left and right facet joint orientation. Although debatable, facet tropism was suggested to be associated with disc degeneration, facet degeneration and degenerative spondylolisthesis in the lumbar spine. The purpose of this study was to explore the relationship between facet tropism and facet degeneration in the sub-axial cervical spine. METHODS: A total of 200 patients with cervical spondylosis were retrospectively analyzed...
February 20, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27994791/analysis-of-the-relationship-between-ligamentum-flavum-thickening-and-lumbar-segmental-instability-disc-degeneration-and-facet-joint-osteoarthritis-in-lumbar-spinal-stenosis
#10
Toyomi Yoshiiwa, Masashi Miyazaki, Naoki Notani, Toshinobu Ishihara, Masanori Kawano, Hiroshi Tsumura
STUDY DESIGN: Cross-sectional study. PURPOSE: To investigate the relationship between ligamentum flavum (LF) thickening and lumbar segmental instability and disc degeneration and facet joint osteoarthritis. OVERVIEW OF LITERATURE: Posterior spinal structures, including LF thickness, play a major role in lumbar spinal canal stenosis pathogenesis. The cause of LF thickening is multifactorial and includes activity level, age, and mechanical stress...
December 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27977444/outcome-of-decompression-alone-for-foraminal-extraforaminal-entrapment-of-l5-nerve-root-through-wiltse-paraspinal-approach
#11
Kyung-Chul Choi, Jin-Sung Kim, Dong Chan Lee, Choon-Keun Park
STUDY DESIGN: Retrospective analysis. OBJECTIVE OF THE STUDY: The objective of the study was to present the surgical outcome and analyze the prognostic factors for postoperative leg pain after posterior decompression alone for foraminal/extraforaminal L5 entrapment at L5-S1 segment (LSS). SUMMARY OF BACKGROUND DATA: Disk extrusion, hypertrophy of facet joint, osteophyte of vertebral body, thickened lumbosacral ligament, and collapsed disk lead to form the lumbosacral tunnel which compresses the L5 exiting nerve root...
December 13, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27647036/the-usefulness-of-single-photon-emission-computed-tomography-in-defining-painful-upper-cervical-facet-arthropathy
#12
Vijay M Ravindra, Marcus D Mazur, Erica F Bisson, Craig Barton, Lubdha M Shah, Andrew T Dailey
OBJECTIVE: Standard imaging techniques have low predictive value for identifying sources of neck pain. Single-photon emission computed tomography (SPECT) imaging in conjunction with computed tomography (CT) provides the sensitivity of bone scanning for areas of high metabolic activity with the sensitivity of CT for anatomic localization. We evaluated the usefulness of SPECT-CT imaging in identifying pain generators in upper cervical facet arthropathy. METHODS: In a retrospective study, we reviewed 7 patients (mean age, 68...
December 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27544679/lumbar-scoliosis-associated-with-spinal-stenosis-in-idiopathic-and-degenerative-cases
#13
REVIEW
J C Le Huec, A Cogniet, S Mazas, A Faundez
UNLABELLED: Degenerative de novo scoliosis is commonly present in older adult patients. The degenerative process including disc bulging, facet arthritis, and ligamentum flavum hypertrophy contributes to the appearance of symptoms of spinal stenosis. Idiopathic scoliosis has also degenerative changes that can lead to spinal stenosis. PURPOSE: The aetiology, prevalence, biomechanics, classification, symptomatology, and treatment of idiopathic and degenerative lumbar scoliosis in association with spinal stenosis are reviewed...
October 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27481600/minimally-invasive-surgical-management-of-thoracic-ossification-of-the-ligamentum-flavum-associated-with-x-linked-hypophosphatemia
#14
Alexander R Riccio, Pouya Entezami, Anthony Giuffrida, John Dowling, George Forrest, John W German
BACKGROUND: X-linked hypophosphatemia (XLH) is the most common inherited form of renal phosphate wasting and inherited rickets. Patients have hyperplasia of fibrochondrocytes in tendons and ligaments, causing the structures to thicken and calcify. Thickening of the lamina, hypertrophy of facet joints, and calcification of spinal ligaments are sequelae of this condition and can result in central or foraminal stenosis that compresses nerve roots or the spinal cord. We present a case of XLH with calcification of the ligamentum flavum in which the patient was operated on using minimally invasive posterior decompression...
October 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27299082/degenerative-sacrolisthesis-of-s1-s2-a-case-report
#15
Thakre Kunwar Rajendra, Thomas Issac, B Mallikarjuna Swamy
INTRODUCTION: Degenerative spondylolisthesis (DS) is usually seen at L4-L5 level and less frequently at L5-S1 level. This is a rare case report of spondylolisthesis of S1 over S2 with lumbarization of S1. Lumbarization of S1 is seen in just 1-2% of the population and to have spondylolisthesis in this segment is even rarer. The purpose is to report a rare case of DS at S1-S2 level. CASE REPORT: This is a single case report of a 66-year-old gentleman who presented with complains of lower backache for 2 years and acute retention of urine to the emergency department...
July 2015: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/27228518/facetoplasty-using-radiofrequency-thermocoagulation-for-facet-joint-hypertrophy
#16
Jinyoung Oh, Daehyun Jo, Koohyun Kim, Jungwoo Shim, Misun Roh
UNLABELLED: Lumbar spinal stenosis is one of most common pathologic conditions affecting the lumbar spine. Pain and/or disability in the low back and lower extremities with or without neurogenic claudication may occur as a result of compression of dural sac contents or nerve roots in the narrowed space. Bulging and protrusion, facet joint hypertrophy, and disc herniation combined with osteophytes and arthritic changes of facet joints can be the cause of lumbar spinal stenosis. Medical/interventional treatment may be considered as an initial treatment for patients with mild symptoms of lumbar spinal stenosis...
2016: Pain Physician
https://www.readbyqxmd.com/read/27104789/-gluteal-insufficiency-pathogenesis-diagnosis-and-therapy
#17
REVIEW
N Harrasser, I Banke, H Gollwitzer, F Wilken, A Toepfer, R von Eisenhart-Rothe, M Hauschild
INTRODUCTION: Gluteal insufficiency is a common and challenging complaint. New concepts in pathobiomechanics and improved clinical understanding of chronic gluteal dysfunction have unmasked gluteus medius (GMed) tears as an underlying cause of enhanced trochanteric pain syndrome (GTPS). These tears are often missed or misdiagnosed as bursitis, but lead to prolonged chronic peritrochanteric pain. Clinic: The clinical signs are often dull pain on the lateral hip aspect, reduced hip abduction strength with positive Trendelenburg testing and a tendency for the leg to external rotation, as the internal rotation strength is reduced...
April 2016: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/27041884/factors-affecting-results-of-fluoroscopy-guided-facet-joint-injection-probable-differences-in-the-outcome-of-treatment-between-pure-facet-joint-hypertrophy-and-concomitant-diseases
#18
Akif Albayrak, Baris Ozkul, Mehmet Bulent Balioglu, Yunus Atici, Muhammet Zeki Gultekin, Merih Dilan Albayrak
STUDY DESIGN: Retrospective cohort study. PURPOSE: Facet joints are considered a common source of chronic low-back pain. To determine whether pathogens related to the facet joint arthritis have any effect on treatment failure. MATERIALS AND METHODS: Facet joint injection was applied to 94 patients treated at our hospital between 2011 and 2012 (mean age 59.5 years; 80 women and 14 men). For the purpose of analysis, the patients were divided into two groups...
January 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27002661/ligamentum-flavum-thickening-at-lumbar-spine-is-associated-with-facet-joint-degeneration-an-mri-study
#19
Ergun Karavelioglu, Emre Kacar, Yucel Gonul, Mehmet Eroglu, Mehmet Gazi Boyaci, Selma Eroglu, Ebru Unlu, Alper Murat Ulasli
OBJECTIVE: Degenerative changes in posterior elements of the spine such as thickening or hypertrophy of the ligamentum flavum (LF) may result in spinal stenosis. In the present study, we aimed to investigate the potential factors including age, intervertebral disc degeneration (IDD), facet joint degeneration (FJD), end plate degeneration (EPD), which may affect LF thickening and to reveal the relationship among those factors at each level of lumbar spine by evaluating the magnetic resonance images (MRI)...
November 21, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27001422/cardiac-salvage-by-tweaking-with-beta-3-adrenergic-receptors
#20
REVIEW
Jean-Luc Balligand
Overstimulation of the orthosympathetic system leads to cardiovascular cell and tissue damage through prolonged activation of β-1-2 adrenergic receptors (BARs). The more recent identification of the third isotype of BAR (B3AR) in cardiac myocytes and endothelial cells with a distinctive coupling and effect on cardiac function and remodelling introduced a new facet to this paradigm. In particular, B3AR is up-regulated in cardiac disease and less prone to homologous desensitization, which may reinforce its influence on the diseased myocardium...
July 15, 2016: Cardiovascular Research
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