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https://www.readbyqxmd.com/read/29433530/correlation-between-lumbar-intervertebral-disc-height-and-lumbar-spine-sagittal-alignment-among-asymptomatic-asian-young-adults
#1
Feng Zhang, Kai Zhang, Hai-Jun Tian, Ai-Min Wu, Xiao-Fei Cheng, Tang-Jun Zhou, Jie Zhao
BACKGROUND: To investigate the distribution and characteristics of the lumbar intervertebral disc height (IDH) in asymptomatic Asian population and to determine whether the lumbar IDH is related to the lumbar spine sagittal alignment. METHODS: A cohort of 169 cases of asymptomatic volunteers was enrolled from January 2014 to July 2016. All participants underwent magnetic resonance imaging of the lumbar spine and panoramic radiography of the spine. Panoramic radiographs of the spine were taken to evaluate pelvic incidence (PI), sacral slope (SS), and pelvic tilt (PT) using Surgimap® software...
February 12, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29421295/association-between-optic-nerve-head-deformation-and-retinal-microvasculature-in-high-myopia
#2
Mi Sun Sung, Tae Hee Lee, Hwan Heo, Sang Woo Park
PURPOSE: To evaluate the retinal microvasculature of peripapillary and macular regions in highly myopic eyes and investigate the association between the vascular parameters and optic nerve head (ONH) deformation. DESIGN: Cross-sectional study METHODS: Seventy-one subjects with highly myopic eyes and 26 subjects with emmetropic eyes were included. Horizontal B-scan images of the ONH were obtained using optical coherence tomography (OCT) and horizontal tilt angles were measured...
February 5, 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29415913/hybrid-method-of-transvertebral-foraminotomy-combined-with-anterior-cervical-decompression-and-fusion-for-multilevel-cervical-disease
#3
Yu Yamamoto, Masahito Hara, Yusuke Nishimura, Shoichi Haimoto, Toshihiko Wakabayashi
Transvertebral foraminotomy (TVF) combined with anterior cervical decompression and fusion (ACDF) can be used to treat multilevel cervical spondylotic myelopathy and radiculopathy; however, the radiological outcomes and effectiveness of this hybrid procedure are unknown. We retrospectively assessed 22 consecutive patients treated with combined TVF and ACDF between January 2007 and May 2016. The Japanese Orthopedic Association (JOA) score and Odom's criteria were analyzed. Radiological assessment included the C2-7 sagittal Cobb angle (CA) and range of motion (ROM)...
February 7, 2018: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/29401181/retinal-nerve-fiber-layer-protrusion-associated-with-tilted-optic-discs
#4
Jaclyn Chiang, Michael Yapp, Angelica Ly, Michael P Hennessy, Michael Kalloniatis, Barbara Zangerl
SIGNIFICANCE: This study resulted in the identification of an optic nerve head (ONH) feature associated with tilted optic discs, which might potentially contribute to ONH pathologies. Knowledge of such findings will enhance clinical insights and drive future opportunities to understand disease processes related to tilted optic discs. PURPOSE: The aim of this study was to identify novel retinal nerve fiber layer (RNFL) anomalies by evaluating tilted optic discs using optical coherence tomography...
February 3, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29390994/characteristics-of-cervical-sagittal-parameters-in-healthy-cervical-spine-adults-and-patients-with-cervical-disc-degeneration
#5
Rong Xing, Wangmi Liu, Xilei Li, Libo Jiang, Mumingjiang Yishakea, Jian Dong
BACKGROUND: The cervical sagittal parameters of the normal population and the impact of disc degeneration on cervical sagittal alignment have not been clearly defined yet. This study is applied to investigate the characteristics and relationships of cervical sagittal parameters in normal adults and patients with cervical disc degeneration. METHODS: We reviewed 50 normal control subjects (normal group, NG) and 50 patients with cervical disc degeneration (degeneration group, DG), who had both cervical MRI and radiographs obtained together, between January 2010 and September 2015...
February 2, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29369230/longitudinal-changes-in-disc-and-retinal-lesions-among-highly-myopic-adolescents-in-singapore-over-a-10-year-period
#6
Yee-Ling Wong, Yang Ding, Charumathi Sabanayagam, Chee-Wai Wong, Pavan Verkicharla, Kyoko Ohno-Matsui, Donald Tan, Anna Chwee-Hong Yeo, Quan V Hoang, Ecosse Lamoureux, Seang-Mei Saw
OBJECTIVES: To examine the progression pattern of disc and retinal lesions in highly myopic Chinese adolescents over a 10-year period in Singapore. METHODS: This longitudinal study included Chinese participants who showed high myopia (spherical equivalent [SE] worse than or equal to -5 diopters [D]), no history of refractive surgery, and available fundus photographs at both 2006 (baseline) and 2016 (10-year follow-up) visits. Forty-four adolescents (aged 12-16 years at baseline) who were re-examined later at follow-up were included...
January 22, 2018: Eye & Contact Lens
https://www.readbyqxmd.com/read/29355790/small-c7-t1-lordotic-angle-and-muscle-degeneration-at-c7-level-were-independent-radiological-characteristics-of-patients-with-cervical-imbalance-a-propensity-score-matched-analysis
#7
Koji Tamai, Joshua Romanu, Phillip Grisdela, Permsak Paholpak, Pengfei Zheng, Hiroaki Nakamura, Zorica Buser, Jeffrey C Wang
BACKGROUND CONTEXT: Cervical sagittal vertical axis (cSVA) of ≥40mm is recognized as the key factor of poor health-related quality of life, poor surgical outcomes, and correction loss after surgery for cervical deformity. However, little is known about the radiological characteristics of patients with cSVA≥40mm. PURPOSE: The purpose of this study was to identify the radiological characteristics of patients with cervical imbalance. DESIGN: Retrospective analysis of weight-bearing cervical magnetic resonance (MR) images PATIENT SAMPLE: Consecutive 1,500 MR images of symptomatic patients in weight-bearing position OUTCOME MEASURES: cSVA, cervical alignment, cervical balance parameters (T1 slope, Co-C2 angle, C2-C7 angle, C7-T1 angle, neck tilt and thoracic inlet angle), disc degeneration (Pfirmann and Suzuki classification), endplate degeneration (Modic change), Spondylolisthesis (antero- and retrolisthesis), antero-posterior (AP) diameter of dural sac, cross-sectional area (CSA) and fat infiltration ratio of the transversospinalis muscles at C4 and C7 levels METHODS: Patients were divided into two groups: cervical sagittal vertical axis (cSVA) ≥40mm and <40mm...
January 17, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29349958/-biomechanical-analysis-of-the-correlation-between-sacral-tilt-displacement-and-l%C3%A2-s%C3%A2-disc-degeneration
#8
Ning-Ning Shi, Guo-Quan Shen, Shui-Yong He, Ru-Bao Gu, Shui-Yong He
OBJECTIVE: To biomechanical analysis of the correlation between sacral tilt displacement and L₅-S₁ disc degeneration. METHODS: From July 2011 to July 2013, 81 patients with lumbar disc herniation and sacroiliac joint disorder including 45 males and 36 females with an average age of (45.39±1.30) years ranging from 18 to 65 years old were selected. The course of the disease ranged from 1 to 144 months with an average of (12.64±2.19) months. All patients were taken lumbar spine lateral X-ray films, the lumbar curvature angle, L₄-L₅ or L₅-S₁ intervertebral gap distance between points, and the lumbosacral angle was measured and correlated analyzed...
March 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29348471/three-dimensional-evaluation-of-posterior-pole-and-optic-nerve-head-in-tilted-disc
#9
Yong Chan Kim, Ji-Sun Moon, Hae-Young Lopilly Park, Chan Kee Park
For over a century, tilted disc syndrome (TDS) has been defined vaguely. The lack of consensus of the terminology arises from the lack of understanding of the pathogenesis of this condition. Also, myopic discs with temporal crescents or peripapillary atrophy (PPA) are histologically indistinguishable from TDS. Therefore, we examined the morphological background of the extreme ONH appearances such as the myopic tilted disc and the TDS by analyzing the posterior segment of the eye from a three-dimensional (3D) perspective...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29310920/total-hip-arthroplasty-patients-with-fixed-spinopelvic-alignment-are-at-higher-risk-of-hip-dislocation
#10
Christina I Esposito, Kaitlin M Carroll, Peter K Sculco, Douglas E Padgett, Seth A Jerabek, David J Mayman
BACKGROUND: Sitting radiographs have been used as a pre-operative tool to plan patient-specific total hip arthroplasty (THA) component position that would improve hip stability. Previous work has demonstrated that spinal mobility may impact functional acetabular position when seated. We sought to determine whether patients who dislocate following THA have different sitting spinopelvic alignment or acetabular component orientation compared to patients who did not dislocate. METHODS: A consecutive series of 1000 patients underwent post-operative low-dose biplanar spine-to-ankle lateral radiographs in standing and sitting positions 1 year following THA...
December 13, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29290133/assessment-of-radiographic-and-clinical-outcomes-of-an-articulating-expandable-interbody-cage-in-minimally-invasive-transforaminal-lumbar-interbody-fusion-for-spondylolisthesis
#11
Lara W Massie, Hesham Mostafa Zakaria, Lonni R Schultz, Azam Basheer, Morenikeji Ayodele Buraimoh, Victor Chang
OBJECTIVE The inability to significantly improve sagittal parameters has been a limitation of minimally invasive surgery for transforaminal lumbar interbody fusion (MIS TLIF). Traditional cages have a limited capacity to restore lordosis. This study evaluates the use of a crescent-shaped articulating expandable cage (Altera) for MIS TLIF. METHODS This is a retrospective review of 1- and 2-level MIS TLIF. Radiographic outcomes included differences in segmental and lumbar lordosis, disc height, evidence of fusion, and any endplate violations...
January 2018: Neurosurgical Focus
https://www.readbyqxmd.com/read/29288031/prevalence-and-characteristics-of-myopic-degeneration-in-an-adult-chinese-american-population-the-chinese-american-eye-study
#12
Farzana Choudhury, Stacy M Meuer, Ronald Klein, Dandan Wang, Mina Torres, Xuejuan Jiang, Roberta McKean-Cowdin, Rohit Varma
PURPOSE: To characterize and provide population-based prevalence estimates of myopic degeneration (MD) among Chinese Americans, the fastest growing minority population in the United States in the last decade. DESIGN: Population-based, cross-sectional study. METHODS: 1523 Chinese American adults with myopia, aged 50 years and older, residing in the City of Monterey Park, California, underwent an interview and comprehensive eye exam, including subjective and objective refraction, and stereoscopic fundus photography...
December 26, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29247396/the-mechanism-in-junctional-failure-of-thoraco-lumbar-fusions-part-ii-analysis-of-a-series-of-pjk-after-thoraco-lumbar-fusion-to-determine-parameters-allowing-to-predict-the-risk-of-junctional-breakdown
#13
Antonio A Faundez, Jonathon Richards, Philippe Maxy, Rachel Price, Amélie Léglise, Jean-Charles Le Huec
PURPOSE: To identify risk factors, in 12 patients with junctional breakdown (JBD) after thoraco-sacral fusions and to test a software locating maximal bending moment on full spine EOS images. METHODS: Twelve patients underwent long fusions for lumbar degenerative pathologies. Preop EOS images were compared to first postop EOS showing JBD. Parameters analyzed were: spinopelvic parameters [pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), sagittal vertical axis (SVA), spinosacral angle (SSA), lordosis, and kyphosis], proximal junctional angle (PJA), odontoid-hip axis angle (ODHA), and CIA...
December 15, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29242987/a-twin-study-of-cilioretinal-arteries-tilted-discs-and-situs-inversus
#14
Alex J Baneke, Katie M Williams, Omar A Mahroo, Moin Mohamed, Christopher J Hammond
PURPOSE: To establish the prevalence and heritability of cilioretinal arteries (CRAs), tilted discs (TDs) and situs inversus (SI). METHODS: Fundus photos from the Twins UK Adult Twin registry twin database were analyzed: 1812 individuals, 526 complete monozygotic (MZ) twin pairs and 336 complete dizygotic (DZ) pairs. Images were assessed non-stereoscopically on a computer screen by the same ophthalmologist for presence of CRAs, TDs or SI. Prevalence figures, probandwise concordances and heritabilities were calculated...
December 14, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29197157/application-of-the-isnt-rules-on-retinal-nerve-fibre-layer-thickness-and-neuroretinal-rim-area-in-healthy-myopic-eyes
#15
Kunliang Qiu, Geng Wang, Xuehui Lu, Riping Zhang, Lixia Sun, Mingzhi Zhang
PURPOSE: We determined the applicability of inferior > superior > nasal > temporal (ISNT) rules on retinal nerve fibre layer (RNFL) thickness and rim area and evaluated the impact of various ocular factors on the performance of the ISNT rules in healthy myopic eyes. METHODS: A total of 138 eyes from 138 healthy myopic subjects were included in this cross-sectional observational study. The peripapillary RNFL and optic disc in each eye were imaged with Cirrus HD optical coherence tomography (OCT) and Heidelberg Retina Tomograph II (HRT2), respectively...
December 2, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29120977/use-of-a-scan-ultrasound-and-optical-coherence-tomography-to-differentiate-papilledema-from-pseudopapilledema
#16
Roberto Saenz, Han Cheng, Thomas C Prager, Laura J Frishman, Rosa A Tang
SIGNIFICANCE: Differentiating papilledema from pseudopapilledema reflecting tilted/crowded optic discs or disc drusen is critical but can be challenging. Our study suggests that spectral-domain optical coherence tomography (OCT) peripapillary retinal nerve fiber layer thickness and retrobulbar optic nerve sheath diameter (ONSD) measured by A-scan ultrasound provide useful information when differentiating the two conditions. PURPOSE: To evaluate the use of A-scan ultrasound and spectral-domain OCT retinal nerve fiber layer thickness (RNFLT) in differentiating papilledema associated with idiopathic intracranial hypertension from pseudopapilledema...
December 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29117008/topographic-relationship-between-optic-disc-torsion-and-%C3%A3-zone-peripapillary-atrophy-in-the-myopic-eyes-of-young-patients-with-glaucomatous-appearing-visual-field-defects
#17
Jiyun Lee, Jong Eun Lee, Junki Kwon, Joong Won Shin, Michael S Kook
PURPOSE: To assess the topographic correlation between optic disc torsion (ODT) and beta-zone peripapillary atrophy (β-PPA) in young patients with myopia and glaucomatous-appearing visual field defects (VFDs). PATIENTS AND METHODS: We consecutively recruited 110 eyes of 110 young patients with myopia and glaucomatous-appearing VFDs. Retinal nerve fiber layer (RNFL) and macular ganglion cell inner plexiform layer (mGCIPL) thicknesses were measured to compare between the groups with different ODT directions...
November 7, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/29072008/-effect-of-nape-seven-needles-on-expression-of-dll-4-and-hes-1-in-cervical-intervertebral-disc-degeneration-rats
#18
Yan Lu, Qing-Si Shen, Meng Tian, Hong-Ling Jia, Yong-Chen Zhang
OBJECTIVE: To observe the effect of "Nape Seven Needles" on the expressions of Delta-like ligand 4 (Dll 4) and hairy and enhancer of split homolog 1(Hes 1) in cervical intervertebral disc degeneration(IVDD) rats, so as to explore its mechanism of deferring the degeneration of cervical intervertebral disc. METHODS: SD male rats were randomly divided into a normal group, a model group and a nape seven needles group (n=11 in each group). The IVDD model was established by static-dynamic imbalance method...
August 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29023585/correlations-between-local-peripapillary-choroidal-thickness-and-axial-length-optic-disc-tilt-and-papillo-macular-position-in-young-healthy-eyes
#19
Takehiro Yamashita, Taiji Sakamoto, Naoya Yoshihara, Hiroto Terasaki, Minoru Tanaka, Yuya Kii, Kumiko Nakao
Optical coherence tomography (OCT) has made it possible for clinicians to measure the peripapillary choroidal thickness (ppCT) noninvasively in various ocular diseases. However, the ocular factors associated with the ppCT have not been conclusively determined. The purpose of this study was to determine the relationship between the local ppCT and the axial length, optic disc tilt, and the angle of the papillo-macular position (PMP) in healthy eyes. This was a prospective, observational cross-sectional study of 119 right eyes of 119 healthy Japanese volunteers...
2017: PloS One
https://www.readbyqxmd.com/read/28987526/anterior-lumbar-sagittal-alignment-after-anterior-or-lateral-interbody-fusion
#20
M Afathi, F Zairi, P Devos, M Allaoui, P Marinho, D Chopin, R Assaker
PURPOSE: Anterior or lateral interbody fusion is a treatment option for lumbar disc disease. A segmental change occurs after such surgery. This study was designed to evaluate the changes in the lumbar regional alignment after a single or two-level standalone anterior or lateral interbody fusion (ALIF or LLIF). METHODS: Data from patients referred to our institution between March 2013 and November 2015 for standalone ALIF or LLIF for low-grade isthmic spondylolisthesis or degenerative discopathy were retrospectively included in our analysis...
December 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
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