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https://www.readbyqxmd.com/read/28434048/clinical-and-radiological-outcomes-of-endoscopic-partial-facetectomy-for-degenerative-lumbar-foraminal-stenosis
#1
Myung Soo Youn, Jong Ki Shin, Tae Sik Goh, Jung Sub Lee
BACKGROUND: Several different techniques exist to treat degenerative lumbar foraminal stenosis. Failure to adequately decompress the lumbar foramen may lead to failed back surgery syndrome. However, wide decompression often causes spinal instabilities or may require an additional fusion surgery. The aim of this study was to report the outcomes of endoscopic partial facetectomy (EPF) performed on patients with degenerative lumbar foraminal stenosis. METHODS: Between 2012 and 2014, 25 consecutive patients (12 women and 13 men) who underwent EPF were included in the study...
April 22, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28420598/1-5-t-augmented-reality-navigated-interventional-mri-paravertebral-sympathetic-plexus-injections
#2
David R Marker, Paweena U Thainual, Tamas Ungi, Aaron J Flammang, Gabor Fichtinger, Iulian I Iordachita, John A Carrino, Jan Fritz
PURPOSE: The high contrast resolution and absent ionizing radiation of interventional magnetic resonance imaging (MRI) can be advantageous for paravertebral sympathetic nerve plexus injections. We assessed the feasibility and technical performance of MRI-guided paravertebral sympathetic injections utilizing augmented reality navigation and 1.5 T MRI scanner. METHODS: A total of 23 bilateral injections of the thoracic (8/23, 35%), lumbar (8/23, 35%) and hypogastric (7/23, 30%) paravertebral sympathetic plexus were prospectively planned in twelve human cadavers using a 1...
April 18, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28416834/-efficacy-of-transforaminal-endoscopic-nerve-root-decompression-in-the-treatment-of-degenerative-lumbar-spinal-stenosis
#3
Z R Yu, C D Li, S N Zhu, H L Sun, Y Zhao, L T Qi
OBJECTIVE: To evaluate the feasibility of transforaminal endoscopic nerve root decompression for degenerative lumbar spinal stenosis (DLSS). METHODS: From July 2011 to April 2016, 96 cases of single segment DLSS were involved. All the patients had unilateral lower extremity neurological symptoms, signs, neurogenic intermittent claudication of less than 500 m. Imaging examinations (CT or MRI) or diagnostic nerve root block confirmed single segment degeneration. The mean age was (71...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28413736/targeted-intraspinal-radiofrequency-ablation-for-lumbar-spinal-stenosis
#4
Robert E Jacobson, Michelle Granville, Jesse Hatgis DO
INTRODUCTION: By using a combination of magnetic resonance imaging (MRI) and computed tomography (CT) of the lumbar spine, it is possible to distinguish between spinal stenosis caused by bone compression and specific soft tissue epidural intraspinal lesions that cause localized spinal canal stenosis and neural compression. Examples include facet cysts and yellow ligament hypertrophy. Many of these patients are elderly with medical comorbidities that make open surgery problematic. MATERIALS & METHODS: This is a study of patients with predominantly soft tissue stenosis being treated with targeted intraspinal radiofrequency (RF) heat ablation...
March 10, 2017: Curēus
https://www.readbyqxmd.com/read/28413620/case-report-sciatic-nerve-schwannoma-a-rare-cause-of-sciatica
#5
Sunil Munakomi, Pratyush Shrestha
Herein we report a rare case of a sciatic nerve schwannoma causing sciatica in a 69-year-old female. Sciatic nerve schwannoma is a rare entity. It should always be considered as a possible cause of sciatica in patients that present with symptoms of sciatica with no prolapsed disc in the lumbar spine and a negative crossed straight leg raise test. Timely diagnosis and complete excision of the lesion leads to complete resolution of the symptoms of such patients.
2017: F1000Research
https://www.readbyqxmd.com/read/28413533/persistent-l5-lumbosacral-radiculopathy-caused-by-lumbosacral-trunk-schwannoma
#6
Guive Sharifi, Amin Jahanbakhshi
Schwannomais, usually, benign tumor of nerve sheath that occurs evenly along the spinal cord. Intra-pelvic schwannoma is very rare entity that may arise from lumbosacral nerve roots or from sciatic nerve. Radicular pain of the lower limb as a presenting symptom of pelvic schwannoma is extremely rare. In the current report, the patient is presented with a right sided L5 radicular pain typical of lumbar discopathy. Interestingly, a herniated lumbar disc was noted on lumbosacral magnetic resonance imaging (MRI)...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28413117/structure-specific-movement-patterns-in-patients-with-chronic-low-back-dysfunction-using-lumbar-combined-movement-examination
#7
Aubrey P Monie, Roger I Price, Christopher R P Lind, Kevin P Singer
OBJECTIVE: A test-retest cohort study was conducted to assess the use of a novel computer-aided, combined movement examination (CME) to measure change in low back movement after pain management intervention in 17 cases of lumbar spondylosis. Additionally we desired to use a CME normal reference range (NRR) to compare and contrast movement patterns identified from 3 specific structural pathologic conditions: intervertebral disc, facet joint, and nerve root compression. METHODS: Computer-aided CME was used before and after intervention, in a cohort study design, to record lumbar range of movement along with pain, disability, and health self-report questionnaires in 17 participants who received image-guided facet, epidural, and/or rhizotomy intervention...
April 13, 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28408248/extraforaminal-compression-of-the-l5-nerve-an-anatomical-study-with-application-to-failed-posterior-decompressive-procedures
#8
R Shane Tubbs, Joe Iwanaga, Islam Aly, Marc D Moisi, David R Hanscom, Jens R Chapman, Marios Loukas, Rod J Oskouian
This anatomical study was performed to elucidate the pertinent foraminal and lateral L5 nerve anatomy to enhance our understanding of possible neurologic causes of failed decompression surgery. Persistent extraforaminal L5 nerve compression is a possible cause of persistent symptoms following lumbosacral surgery. The amount of extraforaminal space for the L5 ventral ramus was examined in fifty adult human skeletons (100 sides). Based on morphology, the specimens were then categorized (types I-IV) on the basis of the bony space available for the nerve at this location...
April 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28396932/comparison-of-analgaesia-with-lumbar-epidurals-and-lumbar-plexus-nerve-blocks-in-patients-receiving-multimodal-analgaesics-following-primary-total-hip-arthroplasty-a-retrospective-analysis
#9
N Robert Harvey, Bethany J Wolf, Eric D Bolin, Sylvia H Wilson
PURPOSE: Significant post-operative pain occurs after hip arthroplasty. In a prior study, lumbar plexus nerve blocks provided comparable analgaesia to lumbar epidurals; however, multimodal analgaesics were not used consistently. METHODS: This study assessed a randomly selected cohort of 48 patients undergoing primary hip arthroplasty who received a regional anaesthesia technique for post-operative pain. Twenty-four patients with lumbar epidurals and 24 with single-injection lumbar plexus nerve blocks were reviewed using electronic medical records...
April 11, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28389885/anatomical-evaluation-of-lumbar-nerves-using-diffusion-tensor-imaging-and-implications-of-lateral-decubitus-for-lateral-transpsoas-approach
#10
Yasuhiro Oikawa, Yawara Eguchi, Atsuya Watanabe, Sumihisa Orita, Kazuyo Yamauchi, Miyako Suzuki, Yoshihiro Sakuma, Go Kubota, Kazuhide Inage, Takeshi Sainoh, Jun Sato, Kazuki Fujimoto, Masao Koda, Takeo Furuya, Koji Matsumoto, Yoshitada Masuda, Yasuchika Aoki, Kazuhisa Takahashi, Seiji Ohtori
PURPOSE: Recently, lateral interbody fusion (LIF) has become more prevalent, and evaluation of lumbar nerves has taken on new importance. We report on the assessment of anatomical relationships between lumbar nerves and vertebral bodies using diffusion tensor imaging (DTI). METHODS: Fifty patients with degenerative lumbar disease and ten healthy subjects underwent DTI. In patients with lumbar degenerative disease, we studied nerve courses with patients in the supine positions and with hips flexed...
April 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28388831/estrogen-signaling-is-necessary-for-exercise-mediated-enhancement-of-motoneuron-participation-in-axon-regeneration-after-peripheral-nerve-injury-in-mice
#11
Melina C Acosta, Patricia A Copley, Jamie R Harrell, Jennifer C Wilhelm
Thousands of people each year suffer from peripheral nerve injury. Treatment options are limited, and recovery is often incomplete. Treadmill exercise can enhance nerve regeneration; however, this appears to occur in a sex-dependent manner. Females respond best to short duration, high speed interval training; whereas, males respond best to slower, continuous training. Previous studies have shown a role for testosterone in this process, but the role of estrogen is unknown. To evaluate the role of estrogen signaling in treadmill exercise, we blocked estrogen receptor (ER) signaling during treadmill exercise in males and female wild type mice...
April 7, 2017: Developmental Neurobiology
https://www.readbyqxmd.com/read/28386807/acute-human-herpes-virus-7-hhv-7-encephalitis-in-an-immunocompetent-adult-patient-a-case-report-and-review-of-literature
#12
Nicoletta Riva, Iacopo Franconi, Marianna Meschiari, Erica Franceschini, Cinzia Puzzolante, Gianluca Cuomo, Alessandro Bianchi, Francesca Cavalleri, Maurilio Genovese, Cristina Mussini
We report a case of an acute HHV-7 encephalitis involving the nucleus of the VI cranial nerve in an immunocompetent host. The patient was an adult male admitted to our Clinic with headache, diplopia, fever, nausea, vertigo, asthenia and general malaise. PCR for viral and bacterial genomes was run on both serum and cerebral spinal fluid (CSF) after performing lumbar puncture, resulting positive only for HHV-7 DNA on CSF. MRI showed hyperintensity in FLAIR signal in the dorsal pons, in the area of the VI cranial nerve nucleus...
April 6, 2017: Infection
https://www.readbyqxmd.com/read/28385947/the-incidence-of-nerve-root-injury-by-high-speed-drill-can-be-reduced-by-chilled-saline-irrigation-in-a-rabbit-model
#13
K Tamai, A Suzuki, S Takahashi, J Akhgar, M S Rahmani, K Hayashi, S Ohyama, H Nakamura
AIMS: We aimed to evaluate the temperature around the nerve root during drilling of the lamina and to determine whether irrigation during drilling can reduce the chance of nerve root injury. MATERIALS AND METHODS: Lumbar nerve roots were exposed to frictional heat by high-speed drilling of the lamina in a live rabbit model, with saline (room temperature (RT) or chilled saline) or without saline (control) irrigation. We measured temperatures surrounding the nerve root and made histological evaluations...
April 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28385420/less-is-more-efficacy-of-rapid-3d-t2-space-in-ed-patients-with-acute-atypical-low-back-pain
#14
Nicholas A Koontz, Richard H Wiggins, Megan K Mills, Michael S McLaughlin, Elaine C Pigman, Yoshimi Anzai, Lubdha M Shah
RATIONALE AND OBJECTIVES: Emergency department (ED) patients with acute low back pain (LBP) may present with ambiguous clinical findings that pose diagnostic challenges to exclude cauda equina syndrome (CES). As a proof of concept, we aimed to determine the efficacy of a rapid lumbar spine (LS) magnetic resonance imaging (MRI) screening protocol consisting of a single 3D-T2 SPACE FS (3D-T2 Sampling Perfection with Application optimized Contrasts using different flip angle Evolution fat saturated) sequence relative to conventional LS MRI to exclude emergently treatable pathologies in this complex patient population...
April 3, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28384950/familial-schwannomatosis-a-diagnostic-challenge
#15
Sameer Ajit Mansukhani, Rajendra Prasad R Butala, Sunil H Shetty, Ravindra G Khedekar
Schwannomatosis is a disease characterized by the development of multiple benign tumours originating from Schwann cells. Schwannomatosis is a member of the family of diseases known as Neurofibromatosis (NF). Patients with Schwannomatosis develop multiple Schwannomas on cranial, spinal and peripheral nerves. We report a rare case of a 60-year-old female who presented with a painful swelling on the ulnar aspect of her distal forearm. She underwent an excisional biopsy for it; which was suggestive of a Schwannoma...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28383199/outcomes-of-endoscopic-optic-nerve-decompression-in-patients-with-idiopathic-intracranial-hypertension
#16
Luisam Tarrats, Gabriel Hernández, José M Busquets, Juan C Portela, Luis A Serrano, Lorena González-Sepúlveda, José R Sánchez-Pérez
BACKGROUND: The conventional treatment for idiopathic intracranial hypertension involves weight loss, steroids, diuretics, and/or serial lumbar punctures; however, if the symptoms persist or worsen, surgical intervention is recommended. Surgical options include cerebrospinal fluid diversion procedures, such as ventriculoperitoneal and lumboperitoneal shunts, and optic nerve decompression with nerve sheath fenestration. The latter can be carried out using an endoscopic approach, but the outcomes of this technique have not been firmly established...
April 6, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28381111/spontaneous-spinal-plexiform-perineurioma-in-a-juvenile-chicken-gallus-domesticus
#17
Lara Cusack, Uriel Blas-Machado, Joerg Mayer
A 2-mo-old pet chicken ( Gallus domesticus) was presented because of lameness and a hind limb mass of 1 mo duration. Radiographs revealed a soft tissue mass extending from the mid-femur into the body wall. Cytology of a sample obtained from a fine-needle aspirate was unremarkable. The bird was prepared for surgical investigation of the mass but died acutely at the time of pre-medication. Autopsy revealed an extradural mesenchymal neoplasm that focally compressed the lumbar spinal cord, extended into and along the adjacent nerve structures, and displaced the kidneys, skeletal muscle, and body wall...
April 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28377582/nociceptive-drg-neurons-express-muscle-lim-protein-upon-axonal-injury
#18
Evgeny Levin, Anastasia Andreadaki, Philipp Gobrecht, Frank Bosse, Dietmar Fischer
Muscle lim protein (MLP) has long been regarded as a cytosolic and nuclear muscular protein. Here, we show that MLP is also expressed in a subpopulation of adult rat dorsal root ganglia (DRG) neurons in response to axonal injury, while the protein was not detectable in naïve cells. Detailed immunohistochemical analysis of L4/L5 DRG revealed ~3% of MLP-positive neurons 2 days after complete sciatic nerve crush and maximum ~10% after 4-14 days. Similarly, in mixed cultures from cervical, thoracic, lumbar and sacral DRG ~6% of neurons were MLP-positive after 2 days and maximal 17% after 3 days...
April 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28373617/the-reduction-and-direct-repair-of-isthmic-spondylolisthesis-using-the-smiley-face-rod-method-in-adolescent-athlete-technical-note
#19
Kazuta Yamashita, Kosaku Higashino, Toshinori Sakai, Yoichiro Takata, Fumio Hayashi, Fumitake Tezuka, Masatoshi Morimoto, Akihiro Nagamachi, Koichi Sairyo
Presently, lumbar spondylolisthesis did not have the indication of direct repair surgery because of the difficulty to reduce the slippage. In this report, we presented a case and described a minimally invasive direct repair surgery to reduce and repair the pars interarticularis defects of lumbar spondylolisthesis. First, curettage and removal of the synovium of the pars interarticularis and decompression of nerve root are conducted. Next, cancellous bone is harvested from the iliac crest. And then the Percutaneous Pedicle Screws are inserted bilaterally...
2017: Journal of Medical Investigation: JMI
https://www.readbyqxmd.com/read/28372342/a-rare-case-of-aggressive-melanotic-schwannoma-occurred-in-spinal-nerve-of-a-59-year-old-male
#20
Sung-Eun Choi, Yoon Jin Cha, Jisup Kim, Hyunseo Cha, Jayeong Seo, Sung-Uk Kuh, Sung-Jun Kim, Se Hoon Kim
Melanotic schwannoma (MS) is a rare variant of nerve sheath neoplasm that shows ultrastructural and immunophenotypical features of Schwann cells but also has cytoplasmic melanosomes and is reactive for melanocytic markers as well. Unlike conventional schwannoma, which is totally benign, MS has an unpredictable prognosis and is thought to have low-malignant potential. Herein, we present a rare case of recurrent MS in lumbar spine of a 59-year-old male.
April 4, 2017: Journal of Pathology and Translational Medicine
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