Academic literature on the topic 'Lumbar lordosis'

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Journal articles on the topic "Lumbar lordosis"

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Uribe, Juan S., Donald A. Smith, Elias Dakwar, et al. "Lordosis restoration after anterior longitudinal ligament release and placement of lateral hyperlordotic interbody cages during the minimally invasive lateral transpsoas approach: a radiographic study in cadavers." Journal of Neurosurgery: Spine 17, no. 5 (2012): 476–85. http://dx.doi.org/10.3171/2012.8.spine111121.

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Object In the surgical treatment of spinal deformities, the importance of restoring lumbar lordosis is well recognized. Smith-Petersen osteotomies (SPOs) yield approximately 10° of lordosis per level, whereas pedicle subtraction osteotomies result in as much as 30° increased lumbar lordosis. Recently, selective release of the anterior longitudinal ligament (ALL) and placement of lordotic interbody grafts using the minimally invasive lateral retroperitoneal transpsoas approach (XLIF) has been performed as an attempt to increase lumbar lordosis while avoiding the morbidity of osteotomy. The obje
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Wati, Ketut Ayu Padma, Gede Parta Kinandana, and I. Putu Gde Surya Adhitya. "Relationship between body mass indexand lumbar lordosis curve." Kinesiology and Physiotherapy Comprehensive 3, no. 1 (2024): 1–5. http://dx.doi.org/10.62004/kpc.v3i1.33.

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Background: Body mass index (BMI) is an indicator of health that is often used with the ratio between body weight and height. Health problems related to BMI vary widely, including bone problems such as lordosis. Lordosis is a disorder that causes an abnormally enlarged curvature of the vertebrae or spine. This study aimedto review the correlation between BMI and lumbar lordosis curve. Methods: This study used a literature review design.The articles that discusses the correlation of BMI and increase in the lumbar lordosis curve based on secondary data from published literature on Google Scholar
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Lee, Ji-Ho, Dong-Oh Lee, Jae Hyup Lee, and Hee Jong Shim. "Effects of Lordotic Angle of a Cage on Sagittal Alignment and Clinical Outcome in One Level Posterior Lumbar Interbody Fusion with Pedicle Screw Fixation." BioMed Research International 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/523728.

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This study aims to assess the differences in the radiological and clinical results depending on the lordotic angles of the cage in posterior lumbar interbody fusion (PLIF). We reviewed 185 segments which underwent PLIF using two different lordotic angles of 4° and 8° of a polyetheretherketone (PEEK) cage. The segmental lordosis and total lumbar lordosis of the 4° and 8° cage groups were compared preoperatively, as well as on the first postoperative day, 6th and 12th months postoperatively. Clinical assessment was performed using the ODI and the VAS of low back pain. The pre- and immediate post
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Thangasheela G, Jency, VinodhKumar R., Manikumar M., et al. "Different types of Corrective exercises on Correction of Hyper Lumbarlordosis in Females- A Narrative Review." Journal of Advanced Zoology 44, S-3 (2023): 1359–68. http://dx.doi.org/10.17762/jaz.v44is-3.1663.

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Back ground: Lumbar curvature carries the upper body weight and transfers it directly to the pelvis, which is of great significance. The structures in the lumbar region are one of the factors that affect the lumbar-pelvic balance, as well as the performance of lumbar lordosis and pelvic tilt. Also, weakness of abdominal, dorsal, and lumbar muscles has been considered as the most common factors increasing the lumbar curvature. Excessive lordotic curvature is also called hyperlordosis, hollow back, saddle back and swayback. Common cause of excessive lordosis includes tight low back muscle, exces
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Dimitrijević, Vanja, Tijana Šćepanović, Vukadin Milankov, Miroslav Milankov, and Patrik Drid. "Effects of Corrective Exercises on Lumbar Lordotic Angle Correction: A Systematic Review and Meta-Analysis." International Journal of Environmental Research and Public Health 19, no. 8 (2022): 4906. http://dx.doi.org/10.3390/ijerph19084906.

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Lumbar lordosis is one of the most important parts of the spine, which is of special importance due to its unique position and direct contact with the pelvis. The aim of this study was to combine the results of several studies and to evaluate the magnitude of the effect of different Lumbar lordotic angle correction programs through meta-analysis. This study has been developed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement. Four databases were searched for articles collection: PubMed, Cochrane Library, Web of Science, and Google Scho
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Sparrey, Carolyn J., Jeannie F. Bailey, Michael Safaee, et al. "Etiology of lumbar lordosis and its pathophysiology: a review of the evolution of lumbar lordosis, and the mechanics and biology of lumbar degeneration." Neurosurgical Focus 36, no. 5 (2014): E1. http://dx.doi.org/10.3171/2014.1.focus13551.

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The goal of this review is to discuss the mechanisms of postural degeneration, particularly the loss of lumbar lordosis commonly observed in the elderly in the context of evolution, mechanical, and biological studies of the human spine and to synthesize recent research findings to clinical management of postural malalignment. Lumbar lordosis is unique to the human spine and is necessary to facilitate our upright posture. However, decreased lumbar lordosis and increased thoracic kyphosis are hallmarks of an aging human spinal column. The unique upright posture and lordotic lumbar curvature of t
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Been, Ella, and Leonid Kalichman. "Lumbar lordosis." Spine Journal 14, no. 1 (2014): 87–97. http://dx.doi.org/10.1016/j.spinee.2013.07.464.

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Lord, Michael J., John M. Small, Jocylane M. Dinsay, and Robert G. Watkins. "Lumbar Lordosis." Spine 22, no. 21 (1997): 2571–74. http://dx.doi.org/10.1097/00007632-199711010-00020.

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Joshi, Gayatri, Himanshu Pathak, and Vijaya Bagade. "The Effect of Heel Height on Balance, Lumbar Lordosis and Core Muscle Strength among Young Healthy Indian Females." International Journal of Health Sciences and Research 14, no. 1 (2024): 135–42. http://dx.doi.org/10.52403/ijhsr.20240117.

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Background: High heels are commonly used by young females on daily basis. Increase in heel height cause shortening of calf muscles which affects body’s dynamic balance. Anterior tilting of pelvis leads to increase in lumbar lordosis which exert stress on muscles around lumbar spine and weakness of core muscles. In the present study, an attempt has been made to compare the high heel users with flat footwear users to find the effects on balance, lumbar lordosis and core muscle strength. Methodology: Fifty subjects fulfilling the inclusion and exclusion criteria were randomly allocated into two g
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Oikonomidis, Stavros, Vincent Heck, Sonja Bantle, et al. "Impact of lordotic cages in the restoration of spinopelvic parameters after dorsal lumbar interbody fusion: a retrospective case control study." International Orthopaedics 44, no. 12 (2020): 2665–72. http://dx.doi.org/10.1007/s00264-020-04719-2.

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Abstract Purpose Aim of this study was to compare the reconstruction of radiological sagittal spinopelvic parameters between lordotic (10°) and normal cages (0°) after dorsal lumbar spondylodesis. Methods This retrospective monocentric study included patients who received dorsal lumbar spondylodesis between January 2014 and December 2018. Inclusion criteria were degenerative lumbar diseases and mono- or bi-segmental fusions in the middle and lower lumbar region. Exclusion criteria were long-distance fusions (3 segments and more) and infectious and tumour-related diseases. The sagittal spinopel
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Dissertations / Theses on the topic "Lumbar lordosis"

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Fox, Maria. "Neandertal Lumbopelvic Anatomy and the Biomechanical Effects of a Reduced Lumbar Lordosis." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1378109007.

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Damasceno, Luiz Henrique Fonseca. "Avaliação da participação dos corpos vertebrais e discos intervertebrais na composição da lordose lombar." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/17/17142/tde-16032007-190229/.

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Foi avaliada a participação dos corpos vertebrais e discos intervertebrais na lordose lombar e, a contribuição destes nas curvaturas lombares de diferentes magnitudes. Foram avaliadas as radiografias lombares em perfil de 350 adultos assintomáticos (143 homens e 207 mulheres, idade média 29 anos). Foram mensuradas a curvatura lombossacra (L1S1), a curvatura lombolombar (L1L5), a angulação de cada corpo vertebral e cada disco intervertebral por meio de uma variação do método de Cobb. A participação percentual dos corpos vertebrais e dos discos intervertebrais na curvatura lombossacra também foi
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Smith, April K. "Aging of the Lumbar Vertebrae Using Known Age and Sex Samples." Digital Archive @ GSU, 2010. http://digitalarchive.gsu.edu/anthro_theses/45.

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The dimensions of the lumbar vertebrae are examined in order to determine if these measurements can be used to predict the age of an individual, and if the lumbar vertebrae exhibit sexual dimorphism. Various statistical techniques were utilized to analyze several dimensions of the lumbar vertebrae. Aging patterns in the lumbar elements are distinct between males and females, and females exhibit compression of the L3 element, which may be related to vertebral wedging. Some dimensions of the lumbar vertebrae are sexually dimorphic.
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Silva, Fabiana Cristina da. "Avaliação de um programa computacional para a medida da lordose lombar." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2005. http://hdl.handle.net/10183/5494.

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Objetivo: métodos antropométricos que quantifiquem as curvas da coluna vertebral e a avaliação postural a fim de realizar investigações epidemiológicas sobre o papel da postura na ocorrência das dores lombares. O propósito do estudo foi avaliar acurácia e reprodutibilidade do Sistema de Avaliação Postural Digitalizado (SAPD) para medir lordose lombar comparando com raio-x. Delineamento: transversal, com amostra consecutiva. Participantes: para medida da acurácia no grupo 1 ( T12,L3,L5) n = 16 e grupo 2 (L1,L3,L5) n= 17. Na reprodutibilidade intra e inter-avaliador n= 80. Principais Medidas: ma
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Nallar, Marín Lucía Nicole. "Aporte del Método Pilates suelo clásico en la estabilización del centro del cuerpo en estudiantes con hiperlordosis lumbar de la carrera de danza de la Universidad de Chile." Tesis, Universidad de Chile, 2013. http://repositorio.uchile.cl/handle/2250/136754.

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Profesor especializado en danza<br>La formulación de este trabajo está orientada hacia los estudiantes de la Etapa Básica y el Primer año Superior de la carrera de Licenciatura en Artes con mención en Danza de la Facultad de Artes de la Universidad de Chile y se contextualiza primeramente en una breve descripción de los aspectos necesarios para entender el tema en cuestión, referente a la anatomía de la postura humana y sus desequilibrios. Éstos se fundamentan en los estudios de anatomía y fisiología del cuerpo humano y enfatizan en las estructuras óseas y musculares en donde se localiza el pr
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Munoz, Fabien. "Evaluation biomécanique des orthèses lombaires : application à l'orthèse Lordactiv®." Phd thesis, Université Jean Monnet - Saint-Etienne, 2013. http://tel.archives-ouvertes.fr/tel-00994583.

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Bien que les orthèses lombaires (OL) soient couramment employées depuis de nombreuses années dans le traitement conservateur des lombalgies, leurs effets mécaniques et posturaux restent, à notre connaissance, partiellement inexplorés. Des obstacles d'ordre méthodologique en sont la principale cause avec en premier lieu la difficulté d'évaluer les effets des OL à l'intérieur du tronc sans être invasif et sans nécessiter un équipement coûteux difficilement utilisable lors de la pratique médicale courante. La levée de ces verrous scientifiques a guidé l'ensemble de ce travail doctoral à travers l
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Chávez, Téllez Girón Guadalupe Patricia, and Ayala Adriana Plata. "Factores relacionados con la frecuencia de hiper-cifosis dorsal e hiper-lordosis lumbar en el personal de oficina de la empresa RH Maq SA de CV 2013." Tesis de Licenciatura, Medicina-Quimica, 2014. http://ri.uaemex.mx/handle/123456789/14833.

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CHEN, CHI-HSIEN, and 陳祺賢. "Measurement of lumbar spinal motion, lumber lordosis and surface contour of back with photometric stereo method." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/26308043272102226660.

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Chun, Chen Chung, and 陳仲鈞. "Influence of Pilot's Lumbar Lordosis on the Sustainability for Ejection Impact." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/89782799832134683071.

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碩士<br>義守大學<br>工業管理學系<br>90<br>In order to understand the influences of pilot’s lumbar lordosis on the sustainability for ejection impact, this study measured the characteristic angles of lumbar lordosis from 112(?) helicopter crews of the ROC Army. Two lumbar lordotic angles were measured: the first measure was between L1 and L5 (LLAΙ); the second one was between L2 and L5 (LLAⅡ). The mean values of LLAΙand LLAⅡ were 31.42 ± 10.11 o and 34.16 ± 9.39 o , respectively. Besides, the lumbosacral angle and sacral inclination angle were 14.05 ± 5.84 o and 42.58 ± 9.15 o, respectively. No significant
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Dallas, Lauren Kyle. "The importance of correcting the lumbar lordosis in the treatment of cervicogenic headaches resulting from anterior head carriage." Thesis, 2009. http://hdl.handle.net/10210/2659.

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Books on the topic "Lumbar lordosis"

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Harrison, Deed E. CBP structural rehabilitation of the lumbar spine. Harrison CBP Seminars, 2008.

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Cartmell, Caitlin M. Sexual dimorphism of lumbar lordotic dorsal wedging: Utilization of lordotic dorsal wedging angle of lumbar vertebrae for the demonstration of sex estimation in human disarticulated Caucasoid skeletal remains. National University, 2016.

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Wehr, Noelle. Lumbar Lordosis Fix : Pelvic Tilt- What Is It and How Do You Correct It?: Restoring Lumbar Lordosis. Independently Published, 2021.

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Bookbinder, Ranee. Normal Lumbar Lordosis : How to Correct Anterior Pelvic Tilt and Lumbar Lordosis: How to Fix Anterior Pelvic Tilt. Independently Published, 2021.

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Sawatzki, Lane. Anterior Pelvic Tilt Squat : Fix Anterior Pelvic Tilt in 10 Minutes: Lumbar Lordosis Exercises. Independently Published, 2021.

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Berven, Sigurd H., and Praveen V. Mummaneni. Degenerative Spinal Deformity: Creating Lordosis in the Lumbar Spine, an Issue of Neurosurgery Clinics of North America. Elsevier - Health Sciences Division, 2018.

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Newsome, Scott D. Other Proven and Putative Autoimmune Disorders of the CNS. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199937837.003.0092.

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Antiglutamic acid decarboxylase (GAD)-associated disorders are a group of rare neuroimmunological disorders that encompass an expanding spectrum of neurological syndromes. The pathophysiology of these disorders is not well understood, although the presence of very high levels of antibodies to GAD is indicative of immunological dysfunction. The most well-known disease within this class of disorders is stiff-person syndrome (SPS), which often manifests as painful spasms, stiffness/rigidity in axial and limb musculature, and increased lumbar lordosis. Other anti-GAD-associated disorders include i
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Book chapters on the topic "Lumbar lordosis"

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Steib, Jean-Paul, and Yann Philippe Charles. "How to Obtain the Best Lumbar Lordosis." In Advanced Concepts in Lumbar Degenerative Disk Disease. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-47756-4_24.

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Hwang, S. H., S. W. Park, and Y. H. Kim. "Measurement Comparison about Lumbar Lordosis : Radiography and 3D Motion Capture." In IFMBE Proceedings. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03882-2_442.

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van Empelen, R. "Een driejarig meisje met een versterkte lumbale lordose." In Fysiotherapeutische casuïstiek. Bohn Stafleu van Loghum, 2006. http://dx.doi.org/10.1007/978-90-313-8645-1_110.

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"Lumbar Lordosis." In Encyclopedia of Pain. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-28753-4_201196.

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Mosley, Yusef I., and James S. Harrop. "Flat Back Deformity." In Spinal Neurosurgery. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190887773.003.0023.

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Flat back syndrome is a phenomenon that occurs when the patient has loss of lumbar lordosis, which can lead to pelvic incidence (PI) and lumbar lordosis (LL) mismatch. Patients can develop this syndrome after a prior lumbar fusion or develop loss of LL secondary to degenerative changes in the spine. This chapter discusses a case presentation of a patient who has developed flat back syndrome after undergoing a prior lumbar fusion. At the end of the presentation, the reader should be able to identify physical exam findings, order the appropriate imaging to evaluate the spinal malalignment, discu
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Parker N., Greenhalgh A., Chockalingam N., and Dangerfield P.H. "Positional relationship between leg rotation and lumbar spine during quiet standing." In Studies in Health Technology and Informatics. IOS Press, 2008. https://doi.org/10.3233/978-1-58603-888-5-231.

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Healthcare professionals frequently evaluate spinal posture on visual assessment during the clinical examination. While this visual assessment of the spine has been shown to be unreliable, the use of a plumbline as to aid clinical visual assessment has also been reported. There is a &amp;ldquo;normal&amp;rdquo; sagittal contour that functions quite well in healthy people. It positions the head in space, it protects the neural axis, and it allows efficient, pain-free motion. Lumbar lordosis is routinely evaluated in most spine patients, but what constitutes a normal sagittal contour is less wel
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Gravina Aristide R., Ferraro Claudio, Frizziero Antonio, Ferraro Marco, and Masiero Stefano. "Goniometer evaluation of thoracic kyphosis and lumbar lordosis in subjects during growth age: a validity study." In Studies in Health Technology and Informatics. IOS Press, 2012. https://doi.org/10.3233/978-1-61499-067-3-247.

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Introduction: The aim of the present study is to evaluate the validity of a pocket compass needle goniometer (IncliMed&amp;reg;, University of Padua) to measure the thoracic kyphosis and lumbar lordosis in children and adolescent.
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Driscoll C., Aubin C.-E., Labelle H., and Dansereau J. "The Relationship Between Hip Flexion/Extension and the Sagittal Curves of the Spine." In Studies in Health Technology and Informatics. IOS Press, 2008. https://doi.org/10.3233/978-1-58603-888-5-90.

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The objective of this study was to develop a finite element model (FEM) in order to study the relationship between hip flexion/extension and the sagittal curves of the spine. A previously developed FEM of the spine, rib cage and pelvis personalized to the 3D reconstructed geometry of a patient using biplanar radiographs was adapted to include the lower limbs including muscles. Simulations were performed to determine: the relationship between hip flexion / extension and lumbar lordosis / thoracic kyphosis, the mechanism of transfer between hip flexion / extension and pelvic rotation, and the in
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Charlebois Manon, Mac-Thiong Jean-Marc, Huot Marie-Pierre, de Guise Jacques A., Skalli Wafa, and Labelle Hubert. "Relation between the Pelvis and the Sagittal Profile in Adolescent Idiopathic Scoliosis: the Influence of Curve Type." In Studies in Health Technology and Informatics. IOS Press, 2002. https://doi.org/10.3233/978-1-60750-935-6-140.

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Previous studies have shown a correlation between pelvic parameters and the lumbar lordosis in normal subjects and in scoliotic adults. This study investigates the relationship between pelvic and spinal geometries in the sagittal plane for adolescent idiopathic scoliosis (AIS) patients having various curve types. The study group was composed of 129 AIS patients classified according to their curve type: King I, King II, King III or lumbar curve. The SpineView software (Surgiview, France) was used to compute five parameters on sagittal x-rays: thoracic kyphosis (TK), lumbar lordosis (LL), sacral
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"6 Spinal Curves Segmentation and Lumbar Lordosis Classification." In Sagittal Balance of the Spine, edited by Pierre Roussouly, João Luiz Pinheiro-Franco, Hubert Labelle, and Martin Gehrchen. Georg Thieme Verlag, 2019. http://dx.doi.org/10.1055/b-0039-171402.

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Conference papers on the topic "Lumbar lordosis"

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Martin, Audrey, Connor Telles, Jeremi Leasure, Jessica Tang, Christopher Ames, and Dimitriy Kondrashov. "Demands on Posterior Fusion Hardware During Lordosis Restoration Procedures." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14195.

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Lower lumbar lordosis plays a critical role in sagittal alignment. It has been shown that restoration of lumbar lordosis in patients with preoperative sagittal imbalance is necessary to prevent postoperative sagittal decompensation [1]. Further, restoration of lower lumbar lordosis in patients with degenerative flatback syndrome has been shown clinically to result in additional correction of the thoracic curve and sacral slope [2]. Currently, there are three commonly used intraoperative techniques to restore lumbar lordosis: (1) cantilever bending, (2) in situ bending, and (3) compression and/
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Shirazi-Adl, A., and M. Parnianpour. "Response of the Lumbar Spine in Large Compression Loads: Stability Demands in Neutral Postures." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-1234.

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Abstract In neutral standing and sitting postures, the human lumbar spine is known to be subjected to both compression force and flexion/lateral moments. For the whole trunk, the centre of mass has been reported to be about 2.0 cm anterior to the L1-L2 vertebral centroid [1]. Due to the asymmetry of the upper body about the sagittal plane, lateral moments likely exist as well. The magnitude of these moments is affected by the location of the line of gravity relative to the vertebrae, and therefore, by the spinal posture (ie, pelvic rotation and lumbar lordosis). Changes in the sagittal curvatu
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Alland, J. A., A. A. Espinoza Orías, H. S. An, G. B. J. Andersson, and N. Inoue. "Three-Dimensional Characterization of Lumbar Lordosis in Torsion." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53742.

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The curvature of the lumbar spine has been extensively studied, mostly in relation to scoliosis.1 Previous three-dimensional models of scoliosis allowed for the characterization of specific abnormalities in the sagittal, coronal and axial planes. Recent research has shown that these same spinal structure abnormalities (including facet joint orientation) may also be associated with spondylolisthesis,2 aging, and the onset of lower back pain, among other potential etiologies.3 Newer imaging technologies allow for more precise determination of the spinal curvature4 with all of these studies typic
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Shirazi-Adl, A., and M. Parnianpour. "Analysis of the Lumbar Spine in Heavy Liftings: Slight Flattening in Lordosis Decreases Risk of Tissue Injury." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0090.

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Abstract During various recreational/occupational daily activities, the sagittal curvature of the human lumbar spine (ie, lordosis) changes, influencing mechanics of the entire human spine. It affects the distribution of gravity/external loads among passive and active systems thus altering the load transmission in the structure. Due to the well-recognised role of lifting in industrial low-back injuries, the lumbar posture has attracted attention in a search for the safest lifting methods. Attempts to recommend optimal lifting techniques have not yielded satisfactory results due to many controv
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Shirazi-Adl, A., and M. Parnianpour. "How Is the Lumbar Spine Stabilized in Compression? Model Studies on Effect of Various Loading Configurations." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0089.

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Abstract The passive human lumbar spine exhibits instability (ie, hypermobility) under compression loads of less than 100N [1,2] which is only a small fraction of loads experienced during various recreational/occupational daily activities. The issue of the spinal stability under compression loads has been the focus of a number of studies [3–7]. The observation of changes in the posture (ie, pelvic tilt, lordosis) during loading/micro-gravity and in low-back population along with that of negligible muscle activities in erect postures with/without loads in hands suggest that the spinal posture i
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Divya K., Veena, Devanshu Mukherjee, Vidhya Shree, et al. "A Novel Approach towards Early Detection of Obliteration in Lumbar Lordosis." In 2020 42nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) in conjunction with the 43rd Annual Conference of the Canadian Medical and Biological Engineering Society. IEEE, 2020. http://dx.doi.org/10.1109/embc44109.2020.9176048.

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Evcik, D., and A. Yücel. "FRI0241 Lumbar lordosis in acute and chronic low back pain patients." In Annual European Congress of Rheumatology, Annals of the rheumatic diseases ARD July 2001. BMJ Publishing Group Ltd and European League Against Rheumatism, 2001. http://dx.doi.org/10.1136/annrheumdis-2001.545.

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Shin, Jueun, Woojin Choi, and Sunwoong Kim. "Seat comfort evaluation method using X-ray : A case study in compact sedan." In 15th International Conference on Applied Human Factors and Ergonomics (AHFE 2024). AHFE International, 2024. http://dx.doi.org/10.54941/ahfe1005253.

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The aim of this research is to gather driver data to determine the comfort of a car seat by analyzing the correlation between various X-ray measurement variables and the satisfaction, comfort, and support of the seat, back, and cushion. The X-ray measurement variables include the seat angle at optimal posture, C7-SVA, Backset, the distance between Hip Joint and Head Centerline, height between Hip Joint and Head Centerline, cervical lordosis angle, thoracic kyphosis angle, and lumbar lordosis angle. The study was conducted on 17 participants using the Compact Sedan car. The results of the exper
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Naserkhaki, Sadegh, Jacob L. Jaremko, Greg Kawchuk, Samer Adeeb, and Marwan El-Rich. "Investigation of Lumbosacral Spine Anatomical Variation Effect on Load-Partitioning Under Follower Load Using Geometrically Personalized Finite Element Model." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-40231.

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The spinal load sharing and mechanical stresses developed in the spine segments due to mechanical loads are dependent on the unique spinal anatomy (geometry and posture). Variation in spinal curvature alters the load sharing of the lumbar spine as well as the stiffness and stability of the passive tissues. In this paper, effects of lumbar spine curvature variation on spinal load sharing under compressive Follower Load (FL) are investigated numerically. 3D nonlinear Finite Element (FE) models of three ligamentous lumbosacral spines are developed based on personalized geometries; hypo-lordotic (
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Shirazi-Adl, A., S. Sadouk, and M. Parnianpour. "Effect of Pelvic Tilt and Lordosis on Passive-Active Synergy in Lumbar Spine Under Axial Compression." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0477.

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Abstract The coupled load sharing-posture response of the human lumbar spine under relatively large compression loads with and without sagittal rotations remains yet to be adequately understood. Such investigations should account for the observed changes in the pelvic tilt and lumbar lordosis and influences thereof on the passive-active equilibrium and stability of the human spine. In pursuit of these goals, the objectives of the current work, using a nonlinear finite element model of the lumbosacral spine, are set as follows: - Study of the synergy of the active-passive lumbar spine under an
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