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Lumbar Disk Degeneration

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https://www.readbyqxmd.com/read/28323703/biomechanical-effects-of-human-lumbar-discography-in-vitro-experiments-and-their-finite-element-validation
#1
Kristen E Lipscomb, Nesrin Sarigul-Klijn, Eric Klineberg, Vivek Mohan
STUDY DESIGN: An experimental and computational finite element analysis of human lumbar spine discography and its resulting effects on disk biomechanics. OBJECTIVE: To characterize the changes in stress and displacement of the human lumbar spine disks after puncture due to discography. SUMMARY OF BACKGROUND DATA: Discography of the intervertebral disk (IVD) may be used to diagnose pathology of the disk and determine whether it may be a source for chronic back pain...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28152249/feasibility-study-for-evaluating-early-lumbar-facet-joint-degeneration-using-axial-t1-%C3%AF-t2-and-t2-mapping-in-cartilage
#2
Jianzhong Hu, Yi Zhang, Chunyue Duan, Xianjing Peng, Ping Hu, Hongbin Lu
PURPOSE: To assess the feasibility of axial T2 , T2*, and T1 ρ mapping of lumbar facet joint (LFJ) cartilage for evaluation of early degeneration. MATERIALS AND METHODS: We examined a total of 176 LFJs from 21 volunteers using axial T2 , T2*, and T1 ρ mapping with a 3.0T magnetic resonance imaging (MRI) scanner. All LFJs were measured and grouped according to the presence of low back pain (LBP), the Weishaupt grading system, and the Pfirrmann grade of the adjacent intervertebral disk (IVD)...
February 2, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28127375/predictors-of-reoperation-after-microdecompression-in-lumbar-spinal-stenosis
#3
Hee-Jong Hwang, Hyung-Ki Park, Gwang-Soo Lee, June-Young Heo, Jae-Chil Chang
OBJECTIVE: The risk factors of reoperation after microdecompression (MD) for lumbar spinal stenosis (LSS) are unclear. In this study, we presented the outcomes of MD for degenerative LSS and investigated the risk factors associated with reoperation. METHODS: A retrospective review was conducted using the clinical records and radiographs of patients with LSS who underwent MD. For clinical evaluation, we used the Japanese Orthopedic Association (JOA) scoring system for low back pain, body mass index, and Charlson comorbidity index...
December 2016: Korean Journal of Spine
https://www.readbyqxmd.com/read/28005616/five-year-reoperation-rates-of-2-level-lumbar-total-disk-replacement-versus-fusion-results-of-a-prospective-randomized-clinical-trial
#4
Kris Radcliff, Jeffrey Spivak, Bruce Darden, Michael Janssen, Thierry Bernard, Jack Zigler
STUDY DESIGN: Long-term analysis of prospective randomized clinical trial data. SUMMARY OF BACKGROUND DATA: Lumbar total disk replacement (TDR) has been found to have equivalent or superior clinical outcomes compared with fusion and decreased radiographic incidence of adjacent level degeneration in single-level cases. OBJECTIVE: The purpose of this particular analysis was to determine the incidence and risk factors for secondary surgery in patients treated with TDR or circumferential fusion at 2 contiguous levels of the lumbar spine...
December 21, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27879508/effect-of-an-annular-closure-device-barricaid-on-same-level-recurrent-disk-herniation-and-disk-height-loss-after-primary-lumbar-discectomy-two-year-results-of-a-multicenter-prospective-cohort-study
#5
Scott L Parker, Gordan Grahovac, Duje Vukas, Milorad Vilendecic, Darko Ledic, Matthew J McGirt, Eugene J Carragee
STUDY DESIGN: A prospective cohort study. OBJECTIVE: To evaluate whether an annular closure device could be implanted safely to reduce same-level recurrent disk herniation, or attenuate disk height loss and improve the outcome after lumbar discectomy. SUMMARY OF BACKGROUND DATA: Same-level recurrent disk herniation, disk height loss, and progressive degeneration are common complications and sequelae after lumbar discectomy. Techniques to reduce these consequences may improve outcomes...
December 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27826214/clinical-outcome-following-diam-implantation-for-symptomatic-lumbar-internal-disk-disruption-a-3-year-retrospective-analysis
#6
Kang Lu, Po-Chou Liliang, Hao-Kuang Wang, Jui-Sheng Chen, Te-Yuan Chen, Ruyi Huang, Han-Jung Chen
BACKGROUND/OBJECTIVE: Internal disk disruption (IDD), an early event of lumbar disk degeneration, is the most common cause of low back pain. Since increased intradiskal pressure (IDP) is associated with symptoms and progression of disk degeneration, unloading a painful disk with an interspinous process device (IPD) is a rational treatment option. The goal of this study was to evaluate the effectiveness of dynamic stabilization with an IPD in the treatment of symptomatic IDD of the lumbar spine...
2016: Journal of Pain Research
https://www.readbyqxmd.com/read/27807886/the-expression-of-cytokine-and-its-significance-for-the-intervertebral-disks-of-kazakhs
#7
Miao Xiaogang, Hou Quanshan, Zhang Liping, Habaxi Kaken
BACKGROUND: Proinflammatory cytokine IL-6 and anti-inflammatory cytokine IL-10 are expressed in herniated intervertebral disks of Kazakhs, but their significance is not yet understood. METHODS: Specimens of herniated lumbar disk were collected from 30 patients with single disk herniation during lumbar discectomy. As a control, 10 specimens were collected postmortem from the cadavers of individuals who did not die from spinal disease. The clinical symptoms in all cases were evaluated preoperation by the JOA index...
November 3, 2016: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/27755201/radiographic-adjacent-segment-degeneration-at-5-years-after-l4-5-posterior-lumbar-interbody-fusion-with-pedicle-screw-instrumentation-evaluation-by-computed-tomography-and-annual-screening-with-magnetic-resonance-imaging
#8
Shiro Imagama, Noriaki Kawakami, Yuji Matsubara, Taichi Tsuji, Tetsuya Ohara, Yoshito Katayama, Naoki Ishiguro, Tokumi Kanemura
STUDY DESIGN: Retrospective clinical study. OBJECTIVE: To investigate adjacent segment degeneration (ASD) at 5 years after L4/5 posterior lumbar interbody fusion with pedicle screw instrumentation and L4/5 decompression surgery using plain radiographs, computed tomography (CT), and magnetic resonance imaging (MRI), with the evaluation of annual changes on MRI. SUMMARY OF BACKGROUND DATA: Methods of evaluation have been inconsistent among studies of ASD...
November 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27742516/massive-lumbar-disk-herniation-following-therapeutic-water-boiling-of-the-lower-extremities-case-report-and-literature-review
#9
Aldo Spallone, Megi Çelniku
BACKGROUND: Legs burning for treating lumbar radicular pain are still in use nowadays in low socioeconomical environments. They are dangerous as the case we report shows clearly. CLINICAL CASE: A 49-year-old man came to our attention with severe flaccid paraparesis occurred 10 days before, almost immediately after he had immersed his legs in boiling water to treat his severe left lumbocrural pain. This was known to be due to a right L3/4 herniated disk diagnosed by magnetic resonance imaging...
January 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27661661/intervertebral-disc-repair-by-allogeneic-mesenchymal-bone-marrow-cells-a-randomized-controlled-trial
#10
David C Noriega, Francisco Ardura, Ruben Hernández-Ramajo, Miguel Angel Martín-Ferrero, Israel Sánchez-Lite, Borja Toribio, Mercedes Alberca, Veronica García, José Maria Moraleda, Ana Sánchez, Javier García-Sancho
BACKGROUND: Degenerative disc disease often causes severe low-back pain, a public health problem with huge economic and life quality impact. Chronic cases often require surgery, which may lead to biomechanical problems and accelerated degeneration of the adjacent segments. Autologous mesenchymal stromal cells (MSC) treatments have shown feasibility, safety and strong indications of clinical efficacy. We present here a randomized, controlled trial using allogeneic MSC, which are logistically more convenient than autologous cells...
September 21, 2016: Transplantation
https://www.readbyqxmd.com/read/27630802/a-novel-minimally-invasive-approach-to-repair-degenerative-disk-disease-in-an-ovine-model-using-injectable-polymethyl-methacrylate-and-bovine-collagen-pmma-bc
#11
Reid Hoshide, Erica Feldman, Anisha Narayan, William Taylor
BACKGROUND: The natural, inflammatory repair processes of an injured intervertebral degenerative disc can propagate further injury and destruction. While there are many different treatment modalities of the pain related to degenerative disc disease, none are actually reparative in nature. Treatment strategies to repair a degenerative disc without inducing a destructive inflammatory milieu have been elusive.  PURPOSE: The purpose of this experiment is to discover the feasibility of reconstructing an injured intervertebral disc using an injected, inert polymer as the foundation for endogenous collagen growth...
August 8, 2016: Curēus
https://www.readbyqxmd.com/read/27567635/a-prospective-randomized-multicenter-phase-i-ii-clinical-trial-to-evaluate-safety-and-efficacy-of-novocart-disk-plus-autologous-disk-chondrocyte-transplantation-in-the-treatment-of-nucleotomized-and-degenerative-lumbar-disks-to-avoid-secondary-disease-safety
#12
RANDOMIZED CONTROLLED TRIAL
Anja Tschugg, Michael Diepers, Steinert Simone, Felix Michnacs, Sebastian Quirbach, Martin Strowitzki, Hans Jörg Meisel, Claudius Thomé
NOVOCART(®) Disk plus, an autologous cell compound for autologous disk chondrocyte transplantation, was developed to reduce the degenerative sequel after lumbar disk surgery or to prophylactically avoid degeneration in adjacent disks, if present. The NDisc trial is an ongoing multi-center, randomized study with a sequential phase I study within the combined phase I/II trial with close monitoring of tolerability and safety. Twenty-four adult patients were randomized and treated with the investigational medicinal product NDisc plus or the carrier material only...
January 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/27536737/rate-of-lumbar-paravertebral-muscle-fat-infiltration-versus-spinal-degeneration-in-asymptomatic-populations-an-age-aggregated-cross-sectional-simulation-study
#13
Rebecca J Crawford, Thomas Volken, Stephanie Valentin, Markus Melloh, James M Elliott
BACKGROUND: The spinal column including its vertebrae and disks has been well examined and extensively reported in relation to age-aggregated degeneration. In contrast, paravertebral muscles are poorly represented in describing normative degeneration. Increasing evidence points to the importance of paravertebral muscle quality in low back health, and their potential as a modifiable factor in low back pain (LBP). Studies examining normative decline of paravertebral muscles are needed to advance the field's etiological understanding...
2016: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/27505961/-biomechanical-analysis-on-the-correlation-between-iliac-rotation-displacement-and-l-4-5-disc-degeneration
#14
Ning-ning Shi, Guo-quan Shen, Shui-yong He, Ru-bao Guo
OBJECTIVE: To study the biomechanical relationship between iliac rotation displacement and L(4,5) disc degeneration, and to provide clinical evidences for the prevention and treatment of L(4,5) disc degeneration and herniation. METHODS: From March 2012 to February 2014,68 patients with lumbar disc herniation combined with sacroiliac joint disorders were selected. Among them, 42 patients with L(4,5) disc herniation combined with sacroiliac joint disorders included 22 males and 20 females, ranging in age from 19 to 63 years old, with an average of (51...
May 2016: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/27352368/radiologic-factors-associated-with-the-dynamic-change-of-dural-sac-diameter-in-lumbar-spine-a-kinematic-mri-study
#15
Shinji Takahashi, Elizabeth L Lord, Tetsuo Hayashi, Jeremiah R Cohen, Lifeng Lao, Qingqiang Yao, Akinobu Suzuki, Hiroaki Nakamura, Jeffrey C Wang
STUDY DESIGN: This is a cross-sectional radiologic study. OBJECTIVE: The purpose of this study was to assess radiologic features related to dynamic changes of dural sac diameter using kinematic magnetic resonance imaging. SUMMARY OF BACKGROUND DATA: It is well known that the cross-sectional area of the lumbar spinal canal decreases during movement from flexion to extension. However, the radiologic characteristics related to dynamic changes of the lumbar spinal canal have not been elucidated...
June 27, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27220970/de-novo-degenerative-lumbar-scoliosis-a-systematic-review-of-prognostic-factors-for-curve-progression
#16
REVIEW
Sayf S A Faraj, Roderick M Holewijn, Miranda L van Hooff, Marinus de Kleuver, Ferran Pellisé, Tsjitske M Haanstra
PURPOSE: To identify prognostic factors for curve progression in de novo degenerative lumbar scoliosis (DNDLS) by performing a systematic review of the literature. METHODS: Studies were selected for inclusion following a systematic search in the bibliographic databases PubMed and EMBASE prior to September 2015 and hand searches of the reference lists of retrieved articles. Two authors independently assessed methodological quality. Data were extracted and presented according to a best evidence synthesis...
August 2016: European Spine Journal
https://www.readbyqxmd.com/read/27200402/neglected-alkaptonuric-patient-presenting-with-steppage-gait
#17
Babak Mirzashahi, Abbas Tafakhori, Arvin Najafi, Mahmoud Farzan
Even though intervertebral disc degeneration can be found in the natural course of alkaptonuria, detection of the disease by black disc color change in a patient without any other presentation of alkaptonuria is an exceptionally rare condition. We have reported a very rare case of alkaptonuria presented with low back pain and steppage gait in a 51-year-old male with a complaint of chronic low-back pain and steppage gait who was operated on for prolapsed lumbar disc herniation. Intraoperatively his lumbar disk was discovered to be black...
April 2016: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/27168730/diabetes-mellitus-a-new-risk-factor-for-lumbar-spinal-stenosis-a-case-control-study
#18
Leila Asadian, Kaveh Haddadi, Mohsen Aarabi, Amirhossein Zare
OBJECTIVES: This study aimed to determine the prevalence of diabetes mellitus in patients with spinal stenosis and lumbar vertebral disk degeneration, and the correlation of diabetes with these diseases. STUDY DESIGN: This is a cross-sectional study. METHODS: This case-control study was performed during 2012-2014 with 110 patients suffering from lumbar spinal stenosis and 110 patients with lumbar disk herniation, who were diagnosed using clinical and radiological evidences...
2016: Clinical Medicine Insights. Endocrinology and Diabetes
https://www.readbyqxmd.com/read/27152925/lumbar-disc-degeneration-is-an-equally-important-risk-factor-as-lumbar-fusion-for-causing-adjacent-segment-disc-disease
#19
Raghu N Natarajan, Gunnar B J Andersson
Treatment of degenerative spinal disorders by fusion produces abnormal mechanical conditions at mobile segments above or below the site of spinal disorders and is clinically referred to as adjacent segments disc disease (ASDD) or transition syndrome in the case of a previous surgical treatment. The aim of the current study is to understand with the help of poro-elastic finite element models how single or two level degeneration of lower lumbar levels influences motions at adjacent levels and compare the findings to motions produced by single or two level fusions when the adjacent disk has varying degree of degeneration...
January 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27123747/effect-of-annular-defects-on-intradiscal-pressures-in-the-lumbar-spine-an-in-vitro-biomechanical-study-of-diskectomy-and-annular-repair
#20
Richard Bostelmann, Hans-Jakob Steiger, Jan Frederick Cornelius
Background Integrity of intervertebral disks may influence, and be influenced by, the maintenance of hydrostatic pressures inside the nucleus pulposus. Disk degeneration causes decreased pressures, leading to overload and injury of the annulus fibrosus, increasing the risk of disk herniation. Diskectomies to treat disk herniation can cause further loss of hydrostatic pressures resulting in worsening degeneration. This study investigated the impact of opening the annulus on intradiscal pressure and whether implantation of an annular closure device (ACD) can restore physiologic pressures...
April 28, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
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