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Lumbar canal stenosis

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https://www.readbyqxmd.com/read/29746537/kinetic-and-kinematic-variables-affecting-trunk-flexion-during-level-walking-in-patients-with-lumbar-spinal-stenosis
#1
Tatsuya Igawa, Junji Katsuhira, Akira Hosaka, Kenta Uchikoshi, Shinichi Ishihara, Ko Matsudaira
Lumbar spinal stenosis causes cauda equina and nerve root compression, resulting in neurological symptoms. Although trunk flexion during level walking may alleviate these symptoms by enabling spinal canal decompression, some patients do not use this strategy. We aimed to identify the kinetic and kinematic variables that affect trunk flexion in patients during level walking. Gait was recorded in 111 patients using a three-dimensional motion capture system and six force plates. From the data recorded, walking velocity, bilateral step length, cycle time, maximum trunk flexion angle, forward pelvic tilt angle, pelvic rotation angle, maximum and minimum joint angles, and moment and power of the lower limb were calculated...
2018: PloS One
https://www.readbyqxmd.com/read/29744317/prospective-randomized-comparative-study-to-evaluate-epidural-fibrosis-and-surgical-outcome-in-patients-undergoing-lumbar-laminectomy-with-epidural-autologous-free-fat-graft-or-gelfoam-a-preliminary-study
#2
Shivender Sobti, Ashwani Grover, B Paul S John, Sarvpreet Singh Grewal, Uttam B George
Introduction: Epidural fibrosis (EF) contributes to unsatisfactory relief of symptoms and failed back syndrome after spine surgery. EF around the nerve root can be more refractory to treatment than the original disc herniation itself. Reoperation on the scar can produce more scarring. Few studies have been conducted regarding the type of material to be used for decreasing EF. Materials and Methods: The prospective randomized comparative study was conducted in the Department of Neurosurgery and Radiodiagnosis, of a tertiary care hospital...
April 2018: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/29727270/pedicle-distraction-increases-intervertebral-and-spinal-canal-area-in-a-cadaver-and-bone-model
#3
Matthew Hughes, Nikolaos Papadakos, Tim Bishop, Jason Bernard
INTRODUCTION: Lumbar spinal stenosis is degenerative narrowing of the spinal canal and/or intervertebral foramen causing compression of the spinal cord and nerve roots. Traditional decompression techniques can often cause significant trauma and vertebral instability. This paper evaluates a method of increasing pedicle length to decompress the spinal and intervertebral foramen, which could be done minimally invasive. METHODS: Three Sawbone (Sawbones Europe, Sweden) and 1 cadaveric lumbar spine underwent bilateral pedicle distraction at L4...
2018: SICOT-J
https://www.readbyqxmd.com/read/29725508/the-relationship-amongst-intervertebral-disc-vertical-diameter-lateral-foramen-diameter-and-nerve-root-impingement-in-lumbar-vertebra
#4
M I Yusof, M N Hassan, M S Abdullah
Introduction: The vertical diameter of the foramen is dependent upon the vertical diameter of the corresponding intervertebral disc. A decrease in disc vertical diameter has direct anatomic consequences to the foraminal diameter and area available for the nerve root passing through it. This study is to establish the relationship amongst the intervertebral disc vertical diameter, lateral foramen diameters and nerve root compression in the lumbar vertebra. Materials and Methods: Measurements of the study parameters were performed using sagittal MRI images...
March 2018: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/29700619/analysis-of-radiological-parameters-associated-with-decreased-fractional-anisotropy-values-on-diffusion-tensor-imaging-in-patients-with-lumbar-spinal-stenosis
#5
Xiandi Wang, Hongli Wang, Chi Sun, Shuyi Zhou, Tao Meng, Feizhou Lv, Xiaosheng Ma, Xinlei Xia, Jianyuan Jiang
PURPOSE: Previous studies have indicated that decreased fractional anisotropy (FA) values on diffusion tensor imaging (DTI) are well correlated with the symptoms of nerve root compression. The aim of our study is to determine primary radiological parameters associated with decreased FA values in patients with lumbar spinal stenosis involving single L5 nerve root. METHODS: Patients confirmed with single L5 nerve root compression by transforaminal nerve root blocks were included in this study...
April 26, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29686915/the-usefulness-of-dual-layer-spectral-computed-tomography-for-myelography-a-case-report-and-review-of-the-literature
#6
Yuji Iyama, Takeshi Nakaura, Ayumi Iyama, Kazuhiro Katahira, Yasuyuki Yamashita
We describe a case of lumbar stenosis in which retrospective spectral analysis using dual-layer spectral detector computed tomography (CT) had the ability to expand the evaluable region in the spinal canal. Spinal canal stenosis is a common condition whose symptoms (such as lower back and leg pain with walking) deteriorate the quality of life. Generally, magnetic resonance imaging (MRI) and CT myelography are performed to diagnose canal stenosis. Dual-layer spectral detector CT can yield virtual monochromatic imaging and retrospective on-demand spectral analysis without a prescan setting...
2018: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29686165/-chronic-low-back-pain-associated-with-gluteus-medius-muscle-a-case-report
#7
Kazunori Oda, Kyongsong Kim, Rinko Kokubo, Daijiro Morimoto, Takao Kitamura, Toyohiko Isu, Akio Morita
The clinical features and etiology of low back pain(LBP)and buttock pain(BuP)has been poorly understood. We report a case of long-term BuP that was successfully treated with gluteus medius muscle(GMeM)decompression under local anesthesia. A 71-year-old man was referred to our hospital because of long-term BuP and claudication. Left BuP that radiated to the left thigh was observed. The pain was mostly triggered by palpation at the middle of the iliac crest and greater trochanter. Lumbar and pelvic radiograms showed no significant lesions...
April 2018: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29679129/-operative-treatment-of-degenerative-diseases-of-the-lumbar-spine
#8
REVIEW
M Czabanka, C Thomé, F Ringel, B Meyer, S-O Eicker, V Rohde, M Stoffel, P Vajkoczy
BACKGROUND: Degenerative diseases of the lumbar spine and associated lower back pain represent a major epidemiological and health-related economic challenge. A distinction is made between specific and unspecific lower back pain. In specific lower back pain lumbar disc herniation and spinal canal stenosis with or without associated segment instability are among the most frequent pathologies. Diverse conservative and operative strategies for treatment of these diseases are available. OBJECTIVES: The aim of this article is to present an overview of current data and an evidence-based assessment of the possible forms of treatment...
April 20, 2018: Der Nervenarzt
https://www.readbyqxmd.com/read/29651713/correlation-of-listhesis-on-upright-radiographs-and-central-lumbar-spinal-canal-stenosis-on-supine-mri-is-it-possible-to-predict-lumbar-spinal-canal-stenosis
#9
Tim Finkenstaedt, Filippo Del Grande, Nicolae Bolog, Nils H Ulrich, Sina Tok, Jakob M Burgstaller, Johann Steurer, Christine B Chung, Gustav Andreisek, Sebastian Winklhofer
OBJECTIVE: To investigate whether upright radiographs can predict lumbar spinal canal stenosis using supine lumbar magnetic resonance imaging (MRI) and to investigate the detection performance for spondylolisthesis on upright radiographs compared with supine MRI in patients with suspected lumbar spinal canal stenosis (LSS). MATERIALS AND METHODS: In this retrospective study, conventional radiographs and MR images of 143 consecutive patients with suspected LSS (75 female, mean age 72 years) were evaluated...
April 13, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29602004/shape-of-the-spinal-canal-is-not-associated-with-success-rates-of-microsurgical-unilateral-laminotomy-and-bilateral-decompression-for-lumbar-spinal-canal-stenosis
#10
Bawarjan Schatlo, Monika Horanin, Silvia Hernandez-Durán, Volodymyr Solomiichuk, Veit Rohde
INTRODUCTION: Lumbar spinal stenosis (LSS) is one of the most frequent neurosurgical affections. It has been reported that the anatomical shape of the spinal canal (oval, round, trefoil) predicts outcome of bilateral decompression performed in an undercutting technique via a unilateral laminotomy in monosegmental LSS. The poorest results were observed in a trefoild spinal canal, leading to the proposal of using a bilateral instead of a unilateral laminotomy. We have been routinely performing a unilateral microsurgical approach with undercutting to decompress both sides of the spinal canal for more than a decade...
March 27, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29593200/role-of-epiligament-in-ligamentum-flavum-hypertrophy-in-patients-with-lumbar-spinal-canal-stenosis-a-pilot-study
#11
Nori Sato, Kosaku Higashino, Toshinori Sakai, Tomoya Terai, Vijay K Goel, Ashok Biyani, Nabil Ebraheim, Yoichiro Takata, Fumio Hayashi, Kazuta Yamashita, Masatoshi Morimoto, Hiroaki Manabe, Koichi Sairyo
Ligamentum flavum (LF) hypertrophy is one of the main factors of lumbar spinal canal stenosis (LSCS). The primary object of this study is to clarify the existence of epiligament in the LF and its role in hypertrophy, and to develop an LF hypertrophy animal model. A cadaveric spine from a 30-year-old man was used to investigate the existence of epiligament in LF. Five LF samples from LSCS patients were obtained to evaluate hypertrophied LF. To create a rat model, we destabilized the lumbar spine. Each LF was sagittally cut for histological evaluation...
2018: Journal of Medical Investigation: JMI
https://www.readbyqxmd.com/read/29578476/urinary-incontinence-due-to-lumbar-spinal-stenosis-causing-disability-and-lowering-quality-of-life
#12
Aleksandra Truszczyńska-Baszak, Edyta Wysocka, Małgorzata Starzec, Justyna Drzał-Grabiec, Adam Tarnowski
OBJECTIVES: Lumbar spinal stenosis may lead to urinary inconsistence and negatively impact quality of life. The aim of the study was to assess the incidence of urinary incontinence and quality of life in female patients with spinal canal stenosis comparing to control group. METHODS: The study population consisted of 50 women diagnosed with severe lumbar spinal canal stenosis. Their mean age was 55.32 ± 12.97 years. The clinical control group consisted of 30 women who did not suffer from any spine disorders...
March 16, 2018: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29576907/spinal-case-of-the-month-with-short-perspective-how-would-you-treat-this-l3-l4-synovial-cyst
#13
REVIEW
Nancy E Epstein
Background: In this new section, Case of the Month with Short Perspective from Surgical Neurology International, we want to see how various spine surgeons would approach different spinal pathologies. In this first case, an elderly male presented with 3 years of lower back pain and progressive neurogenic claudication with bilateral radiculopathy that had exacerbated over the prior 6 months. An outside physician performed a magnetic resonance (MR) study of the lumbar spine that showed a massive synovial cyst filling the spinal canal (e...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29563801/predictive-factors-of-symptomatic-lumbar-canal-stenosis-in-patients-after-surgery-for-cervical-spondylotic-myelopathy
#14
Lingde Kong, Jiangbo Bai, Bing Zhang, Yong Shen, Dehu Tian
Background: The aim of this study was to determine the incidence of coexisting symptomatic lumbar canal stenosis (LCS) in patients after surgery for cervical spondylotic myelopathy (CSM) and identify possible predictive factors associated with it. Materials and methods: We retrospectively reviewed patients with CSM at our institution between January 2005 and December 2015. Clinical and radiographic factors including age, gender, body mass index, Japanese Orthopedic Association scores, cervical alignment, anteroposterior diameter of cervical canal, number of levels with CSM, and percentage of cervical cord compression were investigated...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29558952/surgical-outcomes-for-lumbar-spinal-canal-stenosis-with-coexisting-cervical-stenosis-tandem-spinal-stenosis-a-retrospective-analysis-of-565-cases
#15
Tsuyoshi Yamada, Toshitaka Yoshii, Naoki Yamamoto, Takashi Hirai, Hiroyuki Inose, Atsushi Okawa
BACKGROUND: Concurrent cervical and lumbar spinal canal stenosis is known as tandem spinal stenosis (TSS). As research on TSS is limited, there is no consensus on the optimal surgical approach to this problem. We evaluated the prevalence and clinical characteristics of TSS in patients with symptomatic lumbar spinal canal stenosis (LCS). METHODS: The authors performed a retrospective analysis of the outcomes of 565 patients who underwent lumbar surgeries performed for symptomatic LCS...
March 20, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29557051/axonal-damage-is-remarkable-in-patients-with-acutely-worsening-symptoms-of-compression-myelopathy-biomarkers-in-cerebrospinal-fluid-samples
#16
Hiroshi Takahashi, Yasuchika Aoki, Arata Nakajima, Masato Sonobe, Fumiaki Terajima, Masahiko Saito, Takuya Miyamoto, Keita Koyama, Keiichiro Yamamoto, Takeo Furuya, Masao Koda, Seiji Ohtori, Masashi Yamazaki, Koichi Nakagawa
PURPOSE: To determine levels of biomarkers reflecting damage to axon, myelin, astrocytes, and neuron in cerebrospinal fluid (CSF) of patients with cervical compression myelopathy. METHODS: We collected 69 CSF samples from patients before spinal surgery for acutely worsening compression myelopathy (AM, 20), chronic compression myelopathy (CM, 20), and lumbar canal stenosis (LCS 29; control). We measured levels of phosphorylated neurofilament subunit H (pNF-H), tau (reflecting axonal damage), myelin basic protein (MBP) (reflecting demyelination), S100b (reflecting astrocyte damage), and neuron-specific enolase (NSE) (reflecting neuronal damage)...
March 19, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29533036/-difference-of-spino-pelvic-sagittal-alignment-between-lumbar-disc-herniation-and-lumbar-canal-stenosis-in-adults
#17
Feng Xie, Jun Bian, Zhi-Wei Wang, Wei-Shan Chen
OBJECTIVE: To study the difference of spino-pelvic sagittal alignment between lumbar disc herniation(LDH) and lumbar canal stenosis(LCS) in adults. METHODS: The integrated imaging data of 88 patients with lumbar disc herniation (42 cases) or lumbar canal stenosis(46 cases) were searched from January 1, 2015 to September 10, 2016 in our hospital.Twenty-two cases were excluded because of age factor, 36 cases of LDH (LDH group) and 30 cases of LCS (LCS group) were internalized in the study...
January 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29530708/improvement-in-sagittal-balance-after-decompression-surgery-without-fusion-in-patients-with-degenerative-lumbar-stenosis-clinical-and-radiographic-results-at-1-year
#18
Rachid Madkouri, David Brauge, Anthony Vidon-Buthion, Elie Fahed, Klaus-Luc Mourier, Jacques Beaurain, Michael Grelat
OBJECTIVE: To evaluate modifications in static spinal status after posterior decompression surgery without fusion in patients with symptomatic central canal stenosis. METHODS: From November 2014 to May 2016, 72 patients who underwent isolated decompression for lumbar spinal stenosis were enrolled prospectively in this single-center study. All of the patients had lateral full-body x-ray scans with the EOS system (EOS Imaging, Paris, France) before surgery and after 12 months of follow-up...
March 10, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29517667/aggravation-and-subsequent-disappearance-of-cervical-disc-herniation-after-cervical-open-door-laminoplasty-a-case-report
#19
Yang Meng, Xiaofei Wang, Beiyu Wang, Tingkui Wu, Hao Liu
RATIONALE: Cervical open-door laminoplasty can enlarge the volume of the cervical vertebral canal and thus has become an effective and safe treatment for multilevel cervical disc herniation and cervical stenosis. Some post-surgery complications exist, such as reduction of cervical alignment and local kyphosis. However, aggravation of cervical disc herniation at the surgical level during short-term follow-up has not been discussed. Additionally, spontaneous disappearance of herniated disc pulposus is a common phenomenon in the lumbar region but is relatively rare in the cervical region...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29516348/three-dimensional-visualization-of-internal-vertebral-venous-plexuses-relative-to-dural-sac-and-spinal-nerve-root-of-spinal-canal-stenosis-using-mri
#20
Junji Kamogawa, Osamu Kato, Tatsunori Morizane
PURPOSE: The aim of this study was to introduce a new method of producing three-dimensional (3D) images of vertebral venous plexuses (VVPs) by 3D-MRI with and without contrast media, to identify pathoanatomical features that might accelerate or modify spinal canal stenosis. METHODS: We used a 1.5-T MRI unit with two different 3D sequences with and without contrast media. Multi planar reconstruction (MPR) images of VVPs could be obtained by volume image subtraction methods with a workstation for dural sac from whole 3D volume MPR without contrast media, using images before and after gadoteridol injection...
May 2018: Japanese Journal of Radiology
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