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https://www.readbyqxmd.com/read/28633540/benign-ependymoma-with-extensive-intracranial-and-spinal-cerebrospinal-fluid-dissemination-case-report-and-literature-review
#1
Fangmei Zhu, Jurong Ding, Yumei Li, Dewang Mao, Xianglei He, Wanyuan Chen, Lin Lou, Zhongxiang Ding
Myxopapillary ependymoma (MPE) is a rare variant of ependymoma that is most commonly located in the cauda equina and filum terminale. We present a case of 23-year-old man diagnosed with MPE in the fourth ventricle and sacral canal area with extensive disseminated lesions along the cerebrospinal ventricular system. Additionally, a molecular pathological diagnosis was performed. The patient underwent a craniotomy and a lumbar laminectomy. In the course of 18 months of follow-up, the patient have recovered very well...
June 21, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28632546/clinical-outcome-and-postoperative-ct-measurements-of-microendoscopic-decompression-for-lumbar-spinal-stenosis
#2
Xu Zhou, Lei Zhang, Hai-Long Zhang, Shi-Sheng He, Xin Gu, Guang-Fei Gu, Qing-Song Fu
STUDY DESIGN: This was a retrospective case series. OBJECTIVE: To retrospectively evaluate the clinical outcome of microendoscopic decompression for lumbar spinal stenosis (LSS) including an evaluation of the extent of decompression using computed tomography. SUMMARY OF BACKGROUND DATA: Microendoscopic decompression has been a widely applied procedure to treat LSS with satisfactory outcomes and comparatively fewer complications and revision...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28627290/continuous-adductor-canal-block-added-to-local-infiltration-analgesia-lia-after-total-knee-arthroplasty-has-no-additional-benefits-on-pain-and-ambulation-on-postoperative-day-1-and-2-compared-with-lia-alone
#3
Svava Gudmundsdottir, Jonas L Franklin
Background and purpose - The additional effects of a continuous adductor canal block (ACB) compared with a single-dose local infiltration anesthesia (LIA) after total knee arthroplasty (TKA) has not been widely researched. Both methods have good effect individually. We hypothesized that a continuous ACB added to a single-dose LIA would lower pain scores while ambulating on postoperative day 1 (POD1) and postoperative day 2 (POD2). Patients and methods - 69 participants were included in this prospective, randomized, double-blind, placebo-controlled trial...
June 19, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28619269/comparing-effects-of-cervical-anterior-approach-and-laminoplasty-in-surgical-management-of-cervical-ossification-of-posterior-longitudinal-ligament-by-a-prospective-nonrandomized-controlled-study
#4
Yang Hou, Lei Liang, Guodong Shi, Peng Xu, Guohua Xu, Jiangang Shi, Wen Yuan
INTRODUCTION: The laminoplasty has been the most widely used surgical method for OPLL. In recent years, increasing attention has been drawn to the anterior operative approaches for surgical treatment of cervical OPLL. However, which method is the optimum selection for therapy of cervical OPLL is still obscure. Therefore, we performed this prospective nonrandomized clinical studyin patients with multilevelcervical myelopathydue to OPLL and compare thetherapeutic efficiencyof laminoplastyand anterior approach (cervical discectomy and/or cervicalcorpectomy) in the management of multi-level cervical OPLL...
June 12, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28618974/cystic-dilation-of-a-ventriculus-terminalis-case-report-and-review-of-the-literature
#5
Masoud Zeinali, Hosein Safari, Saleh Rasras, Reza Bahrami, Mahdi Arjipour, Nima Ostadrahimi
The ventriculus terminalis (VT) is a small ependyma-lined cavity within the conus medullaris that is in direct continuity with the central canal of the spinal cord. Cystic dilatation of the ventriculus terminalis on its own is an extremely rare pathological event in adults whose pathogenesis is uncertain. VT has been described in children as a normal developmental phenomenon. These lesions are often diagnosed incidentally during imaging and are in most cases asymptomatic, especially in children. Symptomatic dilatation of VT in adults is a rare condition with 61cases being reported to date...
June 15, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28614284/cervical-spine-deformities-in-children-with-rhizomelic-chondrodysplasia-punctata
#6
Oussama Abousamra, Vinay Kandula, Angela L Duker, Kenneth J Rogers, Michael B Bober, William G Mackenzie
BACKGROUND: Cervical spine deformity in rhizomelic chondrodysplasia punctata (RCDP) has been described with different findings reported in the literature. However, available literature provides limited data from a few cases with magnetic resonance imaging (MRI) of the cervical spine. Our report describes the MRI findings in a group of children with RCDP, aiming to reach a better understanding of this pathology. METHODS: An Institutional Review Board-approved RCDP Registry was created at our institution with the goal of identifying pertinent medical issues over the lifespan of individuals with RCDP...
June 13, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28614282/clinical-outcomes-of-cervical-spinal-surgery-for-cervical-myelopathic-patients-with-coexisting-lumbar-spinal-canal-stenosis-tandem-spinal-stenosis-a-retrospective-analysis-of-297-cases
#7
Tsuyoshi Yamada, Toshitaka Yoshii, Naoki Yamamoto, Takashi Hirai, Hiroyuki Inose, Tsuyoshi Kato, Shigenori Kawabata, Atsushi Okawa
STUDY DESIGN: Retrospective observational study. OBJECTIVE: We evaluated the prevalence and clinical characteristics of tandem spinal stenosis (TSS) in patients with cervical myelopathy including ossification of the posterior longitudinal ligament of the cervical spine (C-OPLL). SUMMARY OF BACKGROUND DATA: Concurrent cervical and lumbar spinal canal stenosis is generally reported as TSS. Most previous studies have used magnetic resonance imaging to evaluate spinal stenosis in the cervical and lumbar spine...
June 13, 2017: Spine
https://www.readbyqxmd.com/read/28614233/discordant-lumbar-epidural-hematoma-after-caudal-steroid-injection-a-case-report-care-compliant
#8
Jung Ju Choi, Young Jin Chang, Wol Seon Jung, Kyung Cheon Lee, Ju Ho Kim, Youn Yi Jo
RATIONALE: Caudal epidural injection is one of the conventional treatments of chronic back pain. Even though spinal epidural hematoma after caudal epidural injection is rare but it can cause serious neurologic complication. PATIENT CONCERNS: An 83-year-old woman taking cilostazol received caudal epidural steroid injection because of her chronic back pain. Six hours later, she experienced an acute hip pain which worsened with time. DIAGNOSIS: Magnetic resonance image showed acute cord compression due to a spinal epidural hematoma at L2-S1 level with concomitant central canal compromise at L2/3, L3/4 level...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28612191/comparison-of-inter-and-intra-observer-reliability-among-the-three-classification-systems-for-cervical-spinal-canal-stenosis
#9
Sangbong Ko, Wonkee Choi, Seungbum Chae
PURPOSE: The aim is to analyze the agreement between different types of physicians in terms of the inter-observer and intra-observer reliability in addition to the agreement between the experienced and non-experienced physicians with respect to three different classification systems for diagnosis of cervical spinal canal stenosis. METHODS: Total nine doctors including experienced group of three doctors and non-experienced group of six doctors classified the patients according to three different classification in an independent, blinded manner using magnetic resonance imaging (MRI) to diagnose cervical canal stenosis...
June 13, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28609322/thoracic-spine-growth-revisited-how-accurate-is-the-dimeglio-data
#10
Ozgur Dede, Kadir Büyükdoğan, Halil Gökhan Demirkıran, Erhan Akpınar, Muharrem Yazici
STUDY DESIGN: Cross-sectional descriptive study. OBJECTIVE: To describe the normal rate pattern of thoracic spine growth in children without any spinal deformity. SUMMARY OF BACKGROUND DATA: The knowledge of thoracic spine growth and height is important for growing spine treatment and the decision of final fusion. Currently, pediatric spinal deformity is approached as early onset and late onset with an understanding of the fast growth during the first 5 years of life...
June 15, 2017: Spine
https://www.readbyqxmd.com/read/28604489/risk-factors-and-prognosis-for-acute-progression-of-myelopathic-symptoms-in-patients-with-ossification-of-the-posterior-longitudinal-ligament-after-minor-trauma
#11
Jong-Myung Jung, Chun Kee Chung, Chi Heon Kim, Yunhee Choi
STUDY DESIGN: Retrospective Cohort study. OBJECTIVE: To identify the risk factors for acute progression of myelopathic symptoms (PMS) associated with ossification of the posterior longitudinal ligament (OPLL) after minor trauma and to compare the prognosis between an acute PMS group and a chronic PMS group. SUMMARY OF BACKGROUD DATA: Although the prevalence of OPLL among patients with cervical myelopathy is high, few studies have been published regarding the risk factors for acute PMS associated with OPLL after minor trauma...
June 9, 2017: Spine
https://www.readbyqxmd.com/read/28599909/anterior-transthoracic-surgery-with-motor-evoked-potential-monitoring-for-high-risk-thoracic-disc-herniations-technique-and-results
#12
Erwin Cornips, Jeroen Habets, Vivianne van Kranen-Mastenbroek, Herman Bos, Paul Bergs, Alida Postma
OBJECTIVE: We present our experience with anterior transthoracic surgery for high-risk thoracic disc herniations (TDHs) using motor evoked potential monitoring (MEPm). METHODS: We estimated surgical risk based on clinical and radiological characteristics, including antero-posterior (AP) spinal canal occupation (SCO), AP spinal cord compression (SCC), residual AP spinal cord diameter (RSCD), and intramedullary signal changes (ISC). We analyzed Anand, ASIA, and Nurick scores, anesthesiological, neurophysiological, and surgical reports...
June 6, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28598295/pelvic-retroversion-a-compensatory-mechanism-for-lumbar-stenosis
#13
Sina Pourtaheri, Akshay Sharma, Jason Savage, Iain Kalfas, Thomas E Mroz, Edward Benzel, Michael P Steinmetz
OBJECTIVE The flexed posture of the proximal (L1-3) or distal (L4-S1) lumbar spine increases the diameter of the spinal canal and neuroforamina and can relieve symptoms of neurogenic claudication. Distal lumbar flexion can result in pelvic retroversion; therefore, in cases of flexible sagittal imbalance, pelvic retroversion may be compensatory for lumbar stenosis and not solely compensatory for the sagittal imbalance as previously thought. The authors investigate underlying causes for pelvic retroversion in patients with flexible sagittal imbalance...
June 9, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28592849/imaging-grading-system-for-the-diagnosis-of-dural-ossification-based-on-102-segments-of-tolf-ct-bone-window-data
#14
Sheng-Yuan Zhou, Bo Yuan, Xiong-Sheng Chen, Xue-Bin Li, Wei Zhu, Lian-Shun Jia
Thoracic ossification of the ligamentum flavum (TOLF) complicated with dural ossification (DO) is a severe clinical disease. The diagnosis of DO preoperatively remains challenging. The current study retrospectively analyzed imaging features of 102 segments with TOLF from 39 patients and proposed a grading system for evaluating DO risk. Logistic regression results showed that unilateral spinal canal occupational rate (UCOR), tram track signs, and C-signs were all risk factors for DO (odds ratios of 5.393, 19...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28591038/indication-for-hypertrophy-posterior-longitudinal-ligament-removal-in-anterior-decompression-for-cervical-spondylotic-myelopathy
#15
Chengrui Bai, Kanghua Li, Ai Guo, Qi Fei, Dong Li, Jinjun Li, Bingqiang Wang, Yong Yang
The retrospective study aimed to investigate the indication for hypertrophy posterior longitudinal ligament (HPLL) removal in anterior decompression for cervical spondylotic myelopathy (CSM). A total of 138 consecutive patients with CSM were divided into 2 groups with developmental cervical stenosis (DCS) (group S) and non-DCS (group N), according to the Pavlov ratio. These 2 groups were subdivided into 2 further subgroups, according to whether HPLL was removed or preserved: group SR (49 patients) and group SP (32 patients) in group S, group NR (21 patients) and group NP (36 patients) in group N...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28587745/an-ex-vivo-spinal-cord-injury-model-to-study-ependymal-cells-in-adult-mouse-tissue
#16
Teresa Fernandez-Zafra, Simone Codeluppi, Per Uhlén
Traumatic spinal cord injury is characterized by an initial cell loss that is followed by a concerted cellular response in an attempt to restore the damaged tissue. Nevertheless, little is known about the signaling mechanisms governing the cellular response to injury. Here, we have established an adult ex vivo system that exhibits multiple hallmarks of spinal cord injury and allows the study of complex processes that are difficult to address using animal models. We have characterized the ependymal cell response to injury in this model system and found that ependymal cells can become activated, proliferate, migrate out of the central canal lining and differentiate in a manner resembling the in vivo situation...
June 3, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28587051/evaluating-intensity-modulated-proton-therapy-relative-to-passive-scattering-proton-therapy-for-increased-vertebral-column-sparing-in-craniospinal-irradiation-in-growing-pediatric-patients
#17
Drosoula Giantsoudi, Joao Seco, Bree R Eaton, F Joseph Simeone, Hanne Kooy, Torunn I Yock, Nancy J Tarbell, Thomas F DeLaney, Judith Adams, Harald Paganetti, Shannon M MacDonald
PURPOSE: At present, proton craniospinal irradiation (CSI) for growing children is delivered to the whole vertebral body (WVB) to avoid asymmetric growth. We aimed to demonstrate the feasibility and potential clinical benefit of delivering vertebral body sparing (VBS) versus WVB CSI with passively scattered (PS) and intensity modulated proton therapy (IMPT) in growing children treated for medulloblastoma. METHODS AND MATERIALS: Five plans were generated for medulloblastoma patients, who had been previously treated with CSI PS proton radiation therapy: (1) single posteroanterior (PA) PS field covering the WVB (PS-PA-WVB); (2) single PA PS field that included only the thecal sac in the target volume (PS-PA-VBS); (3) single PA IMPT field covering the WVB (IMPT-PA-WVB); (4) single PA IMPT field, target volume including thecal sac only (IMPT-PA-VBS); and (5) 2 posterior-oblique (-35°, +35°) IMPT fields, with the target volume including the thecal sac only (IMPT2F-VBS)...
May 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28577449/thoracic-spinal-osteochondroma-a-rare-presentation-of-spinal-cord-compression
#18
David R Hansberry, Raghav Gupta, Arpan V Prabhu, Nitin Agarwal, Mougnyan Cox, Upasana Joneja, Mark T Curtis, James S Harrop, Adam E Flanders
Osteochondromas are the most common benign bone tumor typically seen in the appendicular skeleton and are rarely found in the spine. We present a case of an osteochondroma of the spine presenting with spinal cord compression. 27-year-old male presented with lower extremity weakness and paresthesia, decreased lower extremity sensation, and decreased proprioception. MRI showed a heterogeneous mass with minimal peripheral enhancement and without restricted diffusion. CT demonstrated a calcified mass extending from the left facet joint of T11-T12 with medial extension, resulting in severe central canal stenosis and cord compression...
May 29, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28577333/mri-based-assessment-of-acute-effect-of-head-down-tilt-position-on-intracranial-hemodynamics-and-hydrodynamics
#19
Shota Ishida, Tosiaki Miyati, Naoki Ohno, Shinnosuke Hiratsuka, Noam Alperin, Mitsuhito Mase, Toshifumi Gabata
PURPOSE: To quantify the acute effect of the head-down tilt (HDT) posture on intracranial hemodynamics and hydrodynamics. MATERIALS AND METHODS: We evaluated the intracranial physiological parameters, blood flow-related parameters, and brain morphology in the HDT (-6° and -12°) and the horizontal supine (HS) positions. Seven and 15 healthy subjects were scanned for each position using 3.0 T magnetic resonance imaging system. The peak-to-peak intracranial volume change, the peak-to-peak cerebrospinal fluid (CSF) pressure gradient (PGp-p ), and the intracranial compliance index were calculated from the blood and CSF flow determined using a cine phase-contrast technique...
June 3, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28575129/the-involvement-and-possible-mechanism-of-pro-inflammatory-tumor-necrosis-factor-alpha-tnf-%C3%AE-in-thoracic-ossification-of-the-ligamentum-flavum
#20
Chi Zhang, Zhongqiang Chen, Xiangyu Meng, Mengtao Li, Li Zhang, Ann Huang
Thoracic ossification of the ligamentum flavum (TOLF) is characterized by ectopic bone formation in the ligamentum flavum and is considered to be a leading cause of thoracic spinal canal stenosis and myelopathy. However, the underlying etiology is not well understood. An iTRAQ proteomics was used to reveal the involvement of inflammation factors in TOLF. TNF-α is a pro-inflammatory cytokine implicated in the pathogenesis of many human diseases. Protein profiling analysis showed that the protein level of TNF-α increased in the ossified ligamentum flavum of TOLF, which was confirmed by western blot...
2017: PloS One
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