keyword
https://read.qxmd.com/read/38340799/radiological-analysis-of-cerebrospinal-fluid-dynamics-at-the-craniovertebral-junction-using-time-spatial-labeling-inversion-pulse-magnetic-resonance-imaging-in-patients-with-cervical-spinal-canal-stenosis
#1
JOURNAL ARTICLE
Hitoshi Yamahata, Kosei Ijiri, Fumito Tanabe, Kyoichi Murasumi, Yushi Nagano, Ryutaro Makino, Nayuta Higa, Ryosuke Hanaya
OBJECTIVE: Spondylotic changes in the cervical spine cause degeneration, leading to cervical spinal canal stenosis. This stenotic change can affect cerebrospinal fluid (CSF) dynamics by compressing the dural sac and reducing space in the subarachnoid space. We examined CSF dynamics at the craniovertebral junction (CVJ) using time-spatial labeling inversion pulse magnetic resonance imaging (Time-SLIP MRI) in patients with cervical spinal canal stenosis. METHODS: The maximum longitudinal movement of the CSF at the CVJ was measured as length of motion (LOM) in the Time-SLIP MR image of 56 patients...
February 8, 2024: World Neurosurgery
https://read.qxmd.com/read/38020663/increased-cranio-caudal-spinal-cord-oscillations-are-the-cardinal-pathophysiological-change-in-degenerative-cervical-myelopathy
#2
JOURNAL ARTICLE
Nikolai Pfender, Jan Rosner, Carl M Zipser, Susanne Friedl, Martin Schubert, Reto Sutter, Markus Klarhoefer, José M Spirig, Michael Betz, Patrick Freund, Mazda Farshad, Armin Curt, Markus Hupp
INTRODUCTION: Degenerative cervical myelopathy (DCM) is the most common cause of non-traumatic incomplete spinal cord injury, but its pathophysiology is poorly understood. As spinal cord compression observed in standard MRI often fails to explain a patient's status, new diagnostic techniques to assess DCM are one of the research priorities. Minor cardiac-related cranio-caudal oscillations of the cervical spinal cord are observed by phase-contrast MRI (PC-MRI) in healthy controls (HCs), while they become pathologically increased in patients suffering from degenerative cervical myelopathy...
2023: Frontiers in Neurology
https://read.qxmd.com/read/37891147/role-of-diffusion-tensor-imaging-in-stenotic-and-non-stenotic-spinal-canal
#3
JOURNAL ARTICLE
Kauthankar Akshada Atchut, Lathika Shetty, Kayalvizhi Ravichandran
BACKGROUND AND PURPOSE: Cervical Spondylotic Myelopathy (CSM) is a gradually escalating spinal cord disturbance set in motion by the degenerative narrowing of the vertebral canal. Routine MRI may fail to detect the subtle early alterations of the cord. MRI Diffusion Tensor Imaging (DTI) possesses the potential to detect these changes. This study intends to estimate the potential of the DTI technique in non-stenotic & stenotic spinal canals in individuals affected with CSM. METHODOLOGY: Sixty-four subjects who met the requirements of the inclusion criteria were incorporated into the investigation...
October 25, 2023: Journal of Medical Imaging and Radiation Sciences
https://read.qxmd.com/read/37869545/factors-affecting-successful-immediate-indirect-decompression-in-oblique-lateral-interbody-fusion-in-lumbar-spinal-stenosis-patients
#4
JOURNAL ARTICLE
Jiwon Park, Sang-Min Park, Sangsoo Han, Yeong Jeon, Jae-Young Hong
BACKGROUND: Oblique lumbar interbody fusion (OLIF) offers indirect decompression of stenotic lesions of the spinal canal and foramen through immediate disc height restoration. Only a few studies have reported the effect of cage position and associated intraoperatively modifiable factors for successful immediate indirect decompression following OLIF surgery. This study aimed to investigate the intraoperatively modifiable factors for successful radiological outcomes of OLIF. METHODS: This study included 46 patients with 80 surgical levels who underwent OLIF without direct posterior decompression...
December 2023: N Am Spine Soc J
https://read.qxmd.com/read/37860790/cervical-column-and-cord-and-column-responses-in-whiplash-with-stenosis-a-finite-element-modeling-study
#5
JOURNAL ARTICLE
Narayan Yoganandan, Balaji Harinathan, Aditya Vedantam
Spine degeneration is a normal aging process. It may lead to stenotic spines that may have implications for pain and quality of life. The diagnosis is based on clinical symptomatology and imaging. Magnetic resonance images often reveal the nature and degree of stenosis of the spine. Stenosis is concerning to clinicians and patients because of the decreased space in the spinal canal and potential for elevated risk of cord and/or osteoligamentous spinal column injuries. Numerous finite element models of the cervical spine have been developed to study the biomechanics of the osteoligamentous column such as range of motion and vertebral stress; however, spinal cord modeling is often ignored...
May 1, 2024: Journal of Engineering and Science in Medical Diagnostics and Therapy
https://read.qxmd.com/read/37254656/clinical-outcomes-of-open-door-laminoplasty-combined-with-bilateral-lateral-mass-screw-fixation-for-multi-level-cervical-spinal-stenosis-with-traumatic-cervical-instability-and-spinal-cord-injury-a-retrospective-study
#6
JOURNAL ARTICLE
Guanyi Liu, Lihua Hu, Weihu Ma, Ding Xu, Yongjie Gu, Yong Hu, Hongfeng Ruan, Kun Tian
OBJECTIVES: The prevalence of multi-level cervical spinal stenosis complicated with traumatic cervical instability and spinal cord injury (MCSS-TCISCI) is low, and the optimal surgical approach remains unclear. Open-door laminoplasty combined with bilateral lateral mass screw fixation (ODL-BLMSF) is a relatively new surgical technique; however, its clinical effectiveness in managing MCSS-TCISCI has not been well-established. This study aims to assess the clinical value of ODL-BLMSF against MCSS-TCISCI...
May 30, 2023: Orthopaedic Surgery
https://read.qxmd.com/read/36717091/oblique-lumbar-interbody-fusion-with-selective-biportal-endoscopic-posterior-decompression-for-multilevel-lumbar-degenerative-diseases
#7
JOURNAL ARTICLE
Woo-Myung Lee, Ki-Han You, Min-Seok Kang, Jun-Hyun Kim, Hyun-Jin Park
Oblique lumbar interbody fusion is a minimally invasive procedure for treating degenerative lumbar disease. Its advantages include correcting coronal and sagittal spinal alignment and indirect neural decompression. However, achieving a successful outcome is limited in some patients who need direct decompression for central canal lesions including hard stenotic lesions (endplate or facet articular osteophytes and ossification of posterior longitudinal ligaments) and sequestration of the disk. Biportal endoscopic spinal surgery is a minimally invasive technique, which directly decompresses the lesion...
January 31, 2023: Asian Spine Journal
https://read.qxmd.com/read/36705116/nerve-root-sedimentation-sign-among-lumbar-canal-stenosis-patients-visiting-the-department-of-orthopaedics-in-a-tertiary-care-centre-a-descriptive-cross-sectional-study
#8
JOURNAL ARTICLE
Yugesh Raj Pant, Sushil Paudel, Rajesh Bahadur Lakhey, Rohit Kumar Pokharel
INTRODUCTION: Lumbar canal stenosis is a common cause of back pain and neurogenic claudication in the elderly population. Nerve root sedimentation sign-on Magnetic resonance imaging is a novel sign proposed for the diagnosis of lumbar canal stenosis. There is limited research so far. So, the aim of this study was to find out the prevalence of nerve root sedimentation signs in lumbar canal stenosis among patients visiting the Department of Orthopaedics in a tertiary care centre. METHODS: This was a descriptive cross-sectional study conducted from 1 January 2020 to 31 July 2021 in the tertiary care centre, after receiving ethical approval from the Institutional ethical review board (Reference number: 299/(6-11)076/077)...
December 1, 2022: JNMA; Journal of the Nepal Medical Association
https://read.qxmd.com/read/36548860/cervical-vertebral-stenotic-myelopathy-in-a-nelore-calf
#9
Mariana de Oliveira Bonow, José Renato Junqueira Borges, Isabel Luana de Macêdo, Davi Emanuel Ribeiro de Sousa, João Marcelo Azevedo de Paula Antunes, Márcio Botelho de Castro, Antonio Raphael Teixeira-Neto, Benito Soto-Blanco, Antonio Carlos Lopes Câmara
This paper aims to report clinical, laboratory, radiographic, and pathological features in a case of cervical vertebral stenotic myelopathy (CVSM) affecting a 4-month-old Nelore calf for the first time. During physical examination, the calf could stand if assisted when lifting by the tail but fallen to the ground when trying to walk. Attempts to flex and extend the neck to the right side failed. Radiographs findings consisted of reduced intervertebral spaces, and misalignments between the endplates, more evident between the C3 and C4 vertebrae, resulting in narrowing of the spinal canal and compression of the spinal cord...
December 16, 2022: Veterinary Sciences
https://read.qxmd.com/read/36396060/meta-analysis-of-simultaneous-versus-staged-decompression-of-stenotic-regions-in-patients-with-tandem-spinal-stenosis
#10
JOURNAL ARTICLE
Changbo Lu, Haiyang Qiu, Xinyi Huang, Xiaojiang Yang, Daming Liu, Yang Zhang
BACKGROUND: Tandem spinal stenosis refers to simultaneous spinal canal stenosis of noncontiguous regions. There is no consensus in the surgical strategies for patients with symptomatic tandem spinal stenosis because of the confusing clinical manifestations. This meta-analysis aimed to compare the outcomes of one-stage and two-stage decompression of all stenotic regions (cervical and lumbar/thoracic segments) in patients with TSS. METHODS: A systematic review was conducted, and a comprehensive literature search with the Japanese Orthopedic Association score, was carried out using MEDLINE, Web of Science and PubMed databases from inception to September 13, 2022...
November 14, 2022: World Neurosurgery
https://read.qxmd.com/read/36317084/correlation-between-clinical-scoring-systems-and-quantitative-mri-parameters-in-degenerative-lumbar-spinal-stenosis
#11
JOURNAL ARTICLE
Siddharth Gupta, Tungish Bansal, Abhishek Kashyap, Sumit Sural
Background: Many quantitative MRI parameters and clinical scores have been used patients with lumbar spinal stenosis (LSS). However, the correlation between clinical scores and MRI parameters is not very clear. The objective of the study was to find out the correlation between commonly used clinical scoring systems and quantitative MRI parameters. Methods: Eighty two patients (more than 40 years) with clinical and radiological characteristics of degenerative LSS completed 10 clinical questionnaires which included Oswestry disability index (ODI), Swiss spinal stenosis (SSS) questionnaire, Quebec pain disability scale (QPD), Visual analogue scale (VAS), modified Japanese orthopaedic association scale (mJOA), Pain disability index (PDI), Short form health survey (SF-36), Self-paced walking test (SPWT), Euro quality of life-5D (EQ-5D) and Neurogenic claudication outcome score (NCOS)...
December 2022: Journal of Clinical Orthopaedics and Trauma
https://read.qxmd.com/read/36189332/histological-difference-in-ligament-flavum-between-degenerative-lumbar-canal-stenosis-and-non-stenotic-group-a-prospective-comparative-study
#12
JOURNAL ARTICLE
Mantu Jain, Mukund Sable, Amit Purushottam Tirpude, Rabi Narayan Sahu, Sudeep Kumar Samanta, Gurudip Das
BACKGROUND: Ligament flavum (LF) hypertropy is the main etiopathogenesis of lumbar canal stenosis (LCS). The purely elastic LF undergoes a morphological adaptation including a reduction in the elastic fibers and a consequent increase in the collagen content, fibrosis, cicatrization, and calcification. However, the morphometric analysis can delineate the LF in patients with LCS from those without LCS, which would help in better understanding LCS pathogenesis. AIM: To compare the histopathological changes in LF between the degenerative LCS and non-stenotic (non-LCS) group...
September 18, 2022: World Journal of Orthopedics
https://read.qxmd.com/read/36083504/the-prevalence-of-redundant-nerve-roots-in-standing-positional-mri-decreases-by-half-in-supine-and-almost-to-zero-in-flexed-seated-position-a-retrospective-cross-sectional-cohort-study
#13
JOURNAL ARTICLE
Luca Papavero, Nawar Ali, Kathrin Schawjinski, Annette Holtdirk, Rainer Maas, Stella Ebert
PURPOSE: This retrospective cross-sectional cohort study investigated the influence of posture on lordosis (LL), length of the spinal canal (LSC), anteroposterior diameter (APD L1-L5), dural cross-sectional area (DCSA) of the lumbar spinal canal, and the prevalence of redundant nerve roots (RNR) using positional magnetic resonance imaging (MRI) (0.6 T). METHODS: Sixty-eight patients with single-level degenerative central lumbar spinal stenosis (cLSS) presenting with RNR in the standing position (STA) were also investigated in supine (SUP) or neutral seated (SIT) and flexed seated (FLEX) positions...
November 2022: Neuroradiology
https://read.qxmd.com/read/35944983/sex-differences-in-cervical-spinal-cord-and-spinal-canal-development-in-thoroughbred-horses
#14
JOURNAL ARTICLE
Taro Kondo, Fumio Sato, Nao Tsuzuki, Kazutaka Yamada
Cervical vertebral stenotic myelopathy (CVSM), a common cause of cervical spinal cord compression, is a neurological disease characterized by general proprioceptive ataxia and weakness of hindlimbs that tends to develop in young adult Thoroughbred horses. Although male horses seem to be at increased risk for CVSM, the mechanism for the occurrence of sex differences in the prevalence of CVSM is still poorly understood. Hence, we hypothesized that sex differences in the development of cervical spinal cord and spinal canal would affect the development of CVSM...
August 10, 2022: Journal of Veterinary Medical Science
https://read.qxmd.com/read/35934759/redundant-nerve-roots-indicate-higher-degree-of-stenosis-in-lumbar-spine-stenotic-patients
#15
JOURNAL ARTICLE
Karim Rizwan Nathani, Muhammad Danish Barakzai, Hamid Hussain Rai, Komal Naeem, Fatima Mubarak, Haissan Iftikhar, Saad Akhtar Khan, Syed Ather Enam
OBJECTIVES: Redundant Nerve Root (RNR) is a tortuous and elongated radiological appearance of cauda equina on Magnetic Resonance Imaging (MRI) in Lumbar Spinal Canal Stenosis (LSCS) patients. This study evaluated preoperative spinal morphometry associated with the development of RNR. METHODS: The retrospective cohort was conducted at The Aga Khan University Hospital, and included patients undergoing decompressive spinal surgery secondary to degenerative LSCS in 2015...
August 7, 2022: Acta Neurologica Belgica
https://read.qxmd.com/read/35911371/amyloid-deposits-in-the-ligamentum-flavum-related-to-lumbar-spinal-canal-stenosis-and-lumbar-disc-degeneration
#16
JOURNAL ARTICLE
Mustafa Al Yaseen, Haider Al Zahid, Sawsan Al-Haroon
BACKGROUND: Amyloidosis is a protein conformational disorder, with distinctive features of accumulation of protein fibrils in different body tissues, causing a wide range of signs and symptoms. These amyloid fibrils are usually derived from about 30 different precursor proteins that have been identified. Although the most common tissue for their accumulation is cardiac, amyloidosis may appear in many other tissues, though rarely cause symptoms. One of these extracardiac tissues is the ligamentum flavum (LF)...
June 2022: Curēus
https://read.qxmd.com/read/35901853/does-simultaneous-fusion-of-preexisting-spinal-canal-stenosis-adjacent-to-lumbar-degenerative-spondylolisthesis-achieve-a-better-clinical-outcome-a-retrospective-study-with-more-than-5-year-follow-up
#17
JOURNAL ARTICLE
Xiaohu Wang, Shaodong Zhang, Yu Wang, Yejian Shen, Yakuan Zhao, Xiaotao Wu
BACKGROUND:  In this study, we investigate the effect of simultaneous fusion of preexisting adjacent spinal canal stenosis on the outcome of patients with lumbar spondylolisthesis. METHODS:  Patients with lumbar spondylolisthesis who underwent transforaminal lumbar interbody fusion (TLIF) from August 2013 to March 2016 were included. The inclusion criteria were the following: single-level spondylolisthesis (L4 or L5) and mild to moderate spinal stenosis at cranial adjacent segment of the spondylolisthesis segment before operation...
July 28, 2022: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://read.qxmd.com/read/35728832/an-anatomic-study-examining-lumbar-pars-interarticularis-distance-and-spinal-canal-width-in-relation-to-lumbar-decompressive-surgery
#18
JOURNAL ARTICLE
Innocent U Njoku, Joshua Young-Ki Park, Mohammed A Munim, Amelia Clarke, Christina W Cheng
BACKGROUND: Lumbar laminectomy is a surgical procedure allowing for decompression of neural structures. A wide laminectomy to adequately decompress neural elements without compromising the structural integrity of the spinal column is ideal. Pars interarticularis fractures with spinal instability after isolated laminectomy from overresection of the posterior elements have been reported. There are limited anatomical studies in the spine literature that measure the pars interarticularis distance (PID) and spinal canal width (SCW) in the lumbar spine...
June 20, 2022: International Journal of Spine Surgery
https://read.qxmd.com/read/35700549/spinal-radiology-associated-with-redundant-nerve-roots-of-cauda-equina-in-lumbar-spine-stenosis
#19
JOURNAL ARTICLE
Karim Rizwan Nathani, Muhammad Danish Barakzai, Hamid Hussain Rai, Komal Naeem, Fatima Mubarak, Haissan Iftikhar, Saad Akhtar Khan, Syed Ather Enam
OBJECTIVES: Redundant Nerve Roots (RNR) is a common radiological observation of elongated tortuous appearance of cauda equina nerve roots in sagittal MRI. It is considered a poor prognostic factor, but the associated spinal morphometry remains unfamiliar. METHODS: A retrospective cohort study was conducted at the Aga Khan University Hospital, Pakistan. Patients, aged 18 or above, undergoing decompressive spinal surgery due to degenerative Lumbar Spinal Canal Stenosis (LSCS) in 2015 were included...
June 11, 2022: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://read.qxmd.com/read/35594889/radiographic-and-mri-evidence-of-indirect-neural-decompression-after-the-anterior-column-realignment-procedure-for-adult-spinal-deformity
#20
JOURNAL ARTICLE
Yoichi Tani, Takanori Saito, Shinichirou Taniguchi, Masayuki Ishihara, Masaaki Paku, Takashi Adachi, Muneharu Ando
OBJECTIVE: The anterior column realignment (ACR) procedure, which consists of sectioning the anterior longitudinal ligament/annulus and placing a hyperlordotic interbody cage, has emerged as a minimally invasive surgery (MIS) for achieving aggressive segmental lordosis enhancement to address adult spinal deformity (ASD). Although accumulated evidence has revealed indirect neural decompression after lateral lumbar interbody fusion (LLIF), whether ACR serves equally well for neural decompression remains to be proven...
May 20, 2022: Journal of Neurosurgery. Spine
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