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https://www.readbyqxmd.com/read/27906951/changes-in-neuroglial-activity-in-multiple-spinal-segments-after-caudal-epidural-pulsed-radiofrequency-in-a-rat-model-of-lumbar-disc-herniation
#1
Hee Kyung Cho, Jae Hoon Kang, So-Yeon Kim, Mi-Jung Choi, Se Jin Hwang, Yun-Woo Cho, Sang-Ho Ahn
BACKGROUND: Herniated lumbar discs can induce sciatica by mechanical compression and/or chemical irritation. It was recently reported that neuroglial cellular activity after pulsed radiofrequency (PRF) application to a single dorsal root ganglion (DRG) attenuated neuroglial activity at the corresponding spinal dorsal horn. Recently, caudal epidural PRF has been used to manage neuropathic pain, but evidence of molecular changes after the administration of caudal epidural PRF to attenuate neuropathic pain is lacking, and it has not been determined whether caudal epidural PRF affects neuroglial activity at different spinal levels...
November 2016: Pain Physician
https://www.readbyqxmd.com/read/27906939/a-new-radiofrequency-ablation-procedure-to-treat-sacroiliac-joint-pain
#2
Jianguo Cheng, See Loong Chen, Nicole Zimmerman, Jarrod E Dalton, Garret LaSalle, Richard Rosenquist
BACKGROUND: Low back pain may arise from disorders of the sacroiliac joint in up to 30% of patients. Radiofrequency ablation (RFA) of the nerves innervating the sacroiliac joint has been shown to be a safe and efficacious strategy. OBJECTIVES: We aimed to develop a new RFA technique to relieve low back pain secondary to sacroiliac joint disorders. STUDY DESIGN: Methodology development with validation through prospective observational non-randomized trial (PONRT)...
November 2016: Pain Physician
https://www.readbyqxmd.com/read/27905911/prevalence-of-lumbar-spondylosis-and-its-association-with-low-back-pain-among-community-dwelling-japanese-women
#3
Ritsu Tsujimoto, Yasuyo Abe, Kazuhiko Arima, Takayuki Nishimura, Masato Tomita, Akihiko Yonekura, Takashi Miyamoto, Shohei Matsubayashi, Natsumi Tanaka, Kiyoshi Aoyagi, Makoto Osaki
BACKGROUND: Lumbar spondylosis is more prevalent among the middle-aged and elderly, but few population-based studies have been conducted, especially in Japan. The purpose of this study was to explore the prevalence of lumbar spondylosis and its associations with low back pain among community-dwelling Japanese women. METHODS: Lateral radiographs of the lumbar spine were obtained from 490 Japanese women ≥ 40 years old, and scored for lumbar spondylosis using the Kellgren-Lawrence (KL) grade at lumbar intervertebral level from L1/2 to L5/S1...
December 1, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27899272/risk-factors-for-intervertebral-instability-assessed-by-temporal-evaluation-of-the-radiographs-and-reconstructed-computed-tomography-images-after-l5-s1-single-level-transforaminal-interbody-fusion-a-retrospective-study
#4
Yoshiomi Kobayashi, Yoshio Shinozaki, Yohei Takahashi, Hironari Takaishi, Jun Ogawa
Intervertebral instability risks following L5-S1 transforaminal lumbar interbody fusion (TLIF) and causes of bony bridge formation on computed tomography (CT) remain largely unknown. We evaluated the temporal changes on plain radiographs and reconstructed CT images from 178 patients who had undergone single-level L5-S1 TLIF between February 2011 and February 2015. We statistically analyzed temporal changes the L5-S1 angle on radiographs and intervertebral stability (IVS) at the last observation. Bony bridge formation between the L5-S1 vertebral bodies and the titanium cage subsidence were analyzed by using reconstructed CT...
October 28, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27898599/influence-of-sacral-slope-on-the-loading-of-pedicle-screws-in-postoperative-l5-s1-isthmic-spondylolisthesis-patient-a-finite-element-analysis
#5
Liang Chen, Yu Feng, Chun-Qing Che, Yong Gu, Ling-Jun Wang, Hui-Lin Yang
STUDY DESIGN: A finite element analysis. OBJECTIVE: To evaluate the influence of sacral slope (SS) on the loading of pedicle screws in postoperative isthmic spondylolisthesis (IS). SUMMARY OF BACKGROUND DATA: The spinopelvic anatomy was important for the biomechanics in spondylolisthesis. To our knowledge, no study concentrated on the postoperative biomechanics of the IS with the different SS. METHODS: Based on the computed tomography images, a finite model of L5/S1 IS was constructed...
December 1, 2016: Spine
https://www.readbyqxmd.com/read/27897183/sensory-thresholds-at-different-sites-of-the-foot-a-valuable-reference-for-neurologic-examinations
#6
J-W Zhang, Q Wang, X-F Wang, M-M Gao, X-P Yun, H-F Wu, Y Hong
STUDY DESIGN: Prospective healthy volunteer study for sensory thresholds. OBJECTIVES: The aim of this study was to test sensory thresholds at different sites of the foot to provide a reference for diagnosis and neurologic classification. SETTING: A university hospital for the research and clinical practice of rehabilitation. METHODS: Thirty healthy volunteers were recruited, and quantitative sensory testing was performed on three sites of the foot (medial malleolus (for the L4 dermatome), dorsum of the foot at the third metatarsal phalangeal joint (for the L5 dermatome) and lateral heel (for the S1 dermatome))...
November 29, 2016: Spinal Cord
https://www.readbyqxmd.com/read/27893671/scoliosis-secondary-to-lumbar-osteoid-osteoma-a-case-report-of-delayed-diagnosis-and-literature-review
#7
Haiping Zhang, Xingbang Niu, Biao Wang, Simin He, Dingjun Hao
RATIONALE: Lumbar osteoid osteoma has a low incidence, which could easily lead to scoliosis. PATIENT CONCERNS: Scoliosis secondary to lumbar osteoid osteoma could be easily misdiagnosed when patients do not complain of obvious symptoms. DIAGNOSES: We reported a case of a 9-year-old boy with back deformity that was firstly diagnosed with scoliosis at the local hospital. After prescribed with orthosis, the patient experienced aggravating pain that could not be relieved with painkillers...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27885288/correlation-between-clinical-features-and-magnetic-resonance-imaging-findings-in-lumbar-disc-prolapse
#8
S S Thapa, R B Lakhey, P Sharma, R K Pokhrel
BACKGROUND: Magnetic resonance imaging is routinely done for diagnosis of lumbar disc prolapse. Many abnormalities of disc are observed even in asymptomatic patient.This study was conducted tocorrelate these abnormalities observed on Magnetic resonance imaging and clinical features of lumbar disc prolapse. METHODS: A This prospective analytical study includes 57 cases of lumbar disc prolapse presenting to Department of Orthopedics, Tribhuvan University Teaching Hospital from March 2011 to August 2012...
May 2016: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/27884744/technical-description-of-oblique-lateral-interbody-fusion-at-l1-l5-olif25-and-at-l5-s1-olif51-and-evaluation-of-complication-and-fusion-rates
#9
Kamal R M Woods, James B Billys, Richard A Hynes
BACKGROUND: The OLIF procedure is aimed at mitigating some of the challenges seen with traditional ALIF and transpsoas LLIF and allows for interbody fusion at L1-S1. PURPOSE: To describe the OLIF technique and assess the complication and fusion rates. STUDY DESIGN: A retrospective cohort study. PATIENT SAMPLE: 137 patients who underwent the oblique lateral interbody fusion (OLIF) procedure. OUTCOME MEASURES: Adverse events within 6 months of surgery: Infection, symptomatic pseudarthrosis, hardware failure, vascular injury, perioperative blood transfusion, ureteral injury, bowel injury, renal injury, prolonged postoperative ileus (greater than 3 days), incisional hernia, pseudohernia, reoperation, neurological deficits (weakness, numbness, paresthesia), hip flexion pain, retrograde ejaculation, sympathectomy affecting lower extremities, deep vein thrombosis, pulmonary embolism, myocardial infarction, pneumonia, and cerebrovascular accident...
November 21, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27879571/radiographic-predictors-for-mechanical-failure-following-adult-spinal-deformity-surgery-a-retrospective-cohort-study-in-138-patients
#10
Dennis Winge Hallager, Sven Karstensen, Naeem Bukhari, Martin Gehrchen, Benny Dahl
STUDY DESIGN: Retrospective cohort study at a single institution. OBJECTIVE: We aimed at estimating the rate of revision procedures and identify radiographic predictors of mechanical failure following adult spinal deformity surgery. SUMMARY OF BACKGROUND DATA: Mechanical failure rates following adult spinal deformity surgery range 12% to 37% in literature. While the importance of spinal and spino-pelvic alignment is well documented for surgical outcome and ideal alignment has been proposed as sagittal vertical axis (SVA) < 5 cm, pelvic tilt < 20° and lumbar lordosis (LL) = pelvic incidence ± 9°, the role of radiographic sagittal spine parameters and alignment targets as predictors for mechanical failure remains uncertain...
November 22, 2016: Spine
https://www.readbyqxmd.com/read/27875415/a-posterior-oblique-approach-to-the-lumbar-disk-spaces-vertebral-bodies-and-lumbar-plexus-a-cadaveric-feasibility-study
#11
Alexander Spiessberger, Fabian Baumann, Martin Häusler, Frank Rühli, Javier Fandino, Carl Muroi
STUDY DESIGN: A laboratory cadaveric study. OBJECTIVE: We aimed to demonstrate the feasibility of a posterior oblique approach, sharing the same advantages as the transpsoas technique while minimizing the risk of lumbar plexus or psoas muscle injuries. SUMMARY OF BACKGROUND DATA: The transpsoas approach for interbody fusion and corpectomy offers advantages over posterior and anterior approaches. However, possible risks include traumatization of the psoas muscle or lumbar plexus...
November 21, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27870867/preserving-posterior-complex-can-prevent-adjacent-segment-disease-following-posterior-lumbar-interbody-fusion-surgeries-a-finite-element-analysis
#12
Yun-Peng Huang, Cheng-Fei Du, Cheng-Kung Cheng, Zheng-Cheng Zhong, Xuan-Wei Chen, Gui Wu, Zhe-Cheng Li, Jin-Duo Ye, Jian-Hua Lin, Li Zhen Wang
OBJECTIVE: To investigate the biomechanical effects of the lumbar posterior complex on the adjacent segments after posterior lumbar interbody fusion (PLIF) surgeries. METHODS: A finite element model of the L1-S1 segment was modified to simulate PLIF with total laminectomy (PLIF-LAM) and PLIF with hemilaminectomy (PLIF-HEMI) procedures. The models were subjected to a 400N follower load with a 7.5-N.m moment of flexion, extension, torsion, and lateral bending. The range of motion (ROM), intradiscal pressure (IDP), and ligament force were compared...
2016: PloS One
https://www.readbyqxmd.com/read/27866657/distribution-and-chemical-coding-of-sensory-neurons-innervating-the-skin-of-the-porcine-hindlimb
#13
Anna Kozłowska, Anita Mikołajczyk, Zbigniew Adamiak, Mariusz Majewski
The aim of the present study was to establish the origin and chemical phenotyping of neurons involved in skin innervation of the porcine hind leg. The dorsal root ganglia (DRGs) of the lumbar (L4-L6) and sacral (S1-S3) spinal nerves were visualized using the fluorescent tracer Fast Blue (FB). The morphometric analysis of FB-positive (FB+)neurons showed that in the L4, L5, S1 and S2 DRGs, the small-sized perikarya constituted the major population, whereas in the L6 and S3 DRGs the medium-sized cells made up the major population...
November 5, 2016: Neuropeptides
https://www.readbyqxmd.com/read/27858699/adolescent-lumbar-disc-herniation-impact-diagnosis-and-treatment
#14
Mustafa Karademir, Olcay Eser, Ergün Karavelioglu
BACKGROUND: Symptomatic lumbar intervertebral disc herniation (LDH) is rare in children and adolescents. To date, the treatments available for child and adolescent LDH, and the effect of each treatment, have not been fully reviewed. OBJECTIVE: The purpose of this retrospective study is to report the etiology, familial history, presenting symptoms, level of herniation, duration of symptoms, radiological findings, as well as treatment methods and outcome. METHODS: We retrospectively reviewed medical records of all patients with inclusion criteria of being younger than 20 years...
November 11, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27856380/t9-versus-t10-as-the-upper-instrumented-vertebra-for-correction-of-adult-deformity-rationale-and-recommendations
#15
Hwee Weng Dennis Hey, Kimberly-Anne Tan, Christabel Shao-En Neo, Eugene Tze-Chun Lau, Denise Ai-Wen Choong, Leok-Lim Lau, Gabriel Ka-Po Liu, Hee-Kit Wong
BACKGROUND CONTEXT: Adult spinal deformity correction sometimes involves long posterior pedicle screw constructs extending from the lumbosacral spine to the thoracic vertebra. As fusion obliterates motion and places supraphysiological stress on adjacent spinal segments, it is crucial to ascertain the ideal upper instrumented vertebra (UIV) to minimize risk of proximal junctional failure (PJF). The T10 vertebra is often chosen to allow bridging of the thoracolumbar junction into the immobile thoracic vertebrae on the basis that it is the lowest immobile thoracic vertebra strut by the rib cage...
November 14, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27852493/biomechanical-comparison-of-spinopelvic-fixation-constructs-iliac-screw-versus-s2-alar-iliac-screw
#16
Camden B Burns, Karan Dua, Nicholas A Trasolini, David E Komatsu, James M Barsi
STUDY DESIGN: Biomechanical cadaveric study. OBJECTIVE: To compare the biomechanical properties of the iliac and S2-Alar-Iliac (S2AI) screw in a similar spinopelvic fixation construct. SUMMARY OF BACKGROUND DATA: Spinopelvic fixation is used in the correction of pelvic obliquity, high-grade spondylolisthesis, and long spinal fusions. With the development of pedicle screw fixation, the iliac screw has been used as an anchor point to the pelvis...
January 2016: Spine Deformity
https://www.readbyqxmd.com/read/27847726/neuromyelitis-optica-masquerading-as-lumbosacral-radiculopathy-a-case-report
#17
Seungyeon Kim, Bumsun Kwon, Jinwoo Park, Hojun Lee, Hyojun Kim, Dayun Park, Kiyeun Nam
Neuromyelitis optica spectrum disorders (NMOSD) is a demyelinating syndrome of the central nervous system. This case report describes a 31-year-old woman whose electromyography revealed radiculopathy in the left L5-S1 spinal segment without anatomical abnormalities on lumbosacral magnetic resonance imaging (MRI). She was diagnosed with NMOSD based on gadolinium contrast whole spine and brain MRI and anti-aquaporin-4 antibody findings. Her peripheral nervous system might have been damaged during the early course of NMOSD...
October 2016: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/27847575/microsurgical-foraminotomy-via-wiltse-paraspinal-approach-for-foraminal-or-extraforaminal-stenosis-at-l5-s1-level-risk-factor-analysis-for-poor-outcome
#18
Sung-Ik Cho, Chung-Kee Chough, Shu-Chung Choi, Jin-Young Chun
OBJECTIVE: The purpose of this study was to present the outcome of the microsurgical foraminotomy via Wiltse paraspinal approach for foraminal or extraforaminal (FEF) stenosis at L5-S1 level. We investigated risk factors associated with poor outcome of microsurgical foraminotomy at L5-S1 level. METHODS: We analyzed 21 patients who underwent the microsurgical foraminotomy for FEF stenosis at L5-S1 level. To investigate risk factors associated with poor outcome, patients were classified into two groups (success and failure in foraminotomy)...
November 2016: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/27843683/spinal-neuromodulation-as-a-novel-surgical-option-for-failed-back-surgery-syndrome-following-rhbmp-exuberant-bony-growth-in-instrumented-lumbar-fusion-a-case-report-and-literature-review
#19
Ramsis F Ghaly, Alexei Lissounov, Tatiana Tverdohleb, David Kohanchi, Kenneth D Candido, Nebojsa Nick Knezevic
BACKGROUND: Bone morphogenic protein (BMP) for instrumented lumbar fusion was approved in 2002, and since then has led to an increasing incidence of BMP-related neuropathic pain. These patients are usually resistant to conventional medical therapy and frequently undergo multiple surgical revisions without any pain relief. CASE DESCRIPTION: A 58-year-old male was referred to the author's outpatient clinic after four lumbar surgeries did not provide satisfactory pain relief...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27837137/perfecting-the-l5-s1-spot-projection
#20
Susie Moseley
No abstract text is available yet for this article.
November 2016: Radiologic Technology
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