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Lumbar disc rupture

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https://www.readbyqxmd.com/read/28791480/a-more-realistic-disc-herniation-model-incorporating-compression-flexion-and-facet-constrained-shear-a-mechanical-and-microstructural-analysis-part-ii-high-rate-or-surprise-loading
#1
Zhi Shan, Kelly R Wade, Meredith L Schollum, Peter A Robertson, Ashvin Thambyah, Neil D Broom
PURPOSE: Part I of this study explored mechanisms of disc failure in a complex posture incorporating physiological amounts of flexion and shear at a loading rate considerably lower than likely to occur in a typical in vivo manual handling situation. Given the strain-rate-dependent mechanical properties of the heavily hydrated disc, loading rate will likely influence the mechanisms of disc failure. Part II investigates the mechanisms of failure in healthy discs subjected to surprise-rate compression while held in the same complex posture...
August 8, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28781912/nursing-review-section-of-surgical-neurology-international-part-1-lumbar-disc-disease
#2
Nancy E Epstein, Renee D Hollingsworth
BACKGROUND: Patients with lumbar disc disease may present with low back pain, pain that radiates down into the lower extremity (radiculopathy), and leg pain that increases with ambulation (neurogenic claudication). Patients may first undergo diagnostic studies [(magnetic resonance imaging (MRI) and computed tomographic (CT) examinations] to determine whether there is any significant nerve root or thecal sac compression. METHODS: Increasingly, patients with low back pain with/without radiculopathy are being screened by nurses rather than by neurologists or neurosurgeons/orthopedists...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28767602/iatrogenic-rupture-of-the-left-main-bronchus-secondary-to-repeated-surgical-lobe-torsion-during-double-lumen-tube-placement-a-case-report
#3
Zong Ming Jiang, Chu Zhang, Zhong Hua Chen
RATIONALE: Bronchial rupture is a rare but potentially life-threatening complication during double-lumen endobronchial tube placement. The rupture of the left main bronchus resulting from repeated surgical torsion is uncommon. PATIENT CONCERNS: A 70-year-old man with a history of chronic obstructive pulmonary disease (COPD), intermediate emphysema, chronic bronchitis, hypertension, type 2 diabetes mellitus, and L3-L4 lumbar intervertebral disc herniation. Chest x-ray and computed tomography revealed a solitary pulmonary nodule in the left lower lobe...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28764746/percutaneous-endoscopic-lumbar-discectomy-minimally-invasive-technique-for-multiple-episodes-of-lumbar-disc-herniation
#4
Kyung-Chul Choi, Jin-Sung Kim, Dong Chan Lee, Choon-Keun Park
BACKGROUNDS: Although open lumbar discectomy is a gold standard surgical technique for lumbar disc herniation (LDH), surgery-induced tissue injury may actually become a source of postsurgical pain. Percutaneous endoscopic lumbar discectomy (PELD) is introduced as a minimal invasive spinal technique for LDH. The PELD has gained popularity and shown successful results. The authors report the clinical usefulness of the PELD technique in two patients with the serial multilevel LDHs. CASE PRESENTATIONS: A 32-year-old man suffered from radicular pain at the L5 dermatome due to the down migrated soft LDH at the L4-5 level...
August 1, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28727718/quantity-of-disc-removal-and-radiological-outcomes-of-percutaneous-endoscopic-lumbar-discectomy
#5
Ji Han Heo, Chi Heon Kim, Chun Kee Chung, Yunhee Choi, Young-Geun Seo, Dong Hoi Kim, Sung Bae Park, Jung Hyeon Moon, Won Heo, Jong-Myung Jung
BACKGROUND: Herniated intervertebral disc disease (HIVD) is a common cause of lower back and leg pain. Percutaneous endoscopic lumbar discectomy (PELD) is indicated when non-surgical treatments such as medication and interventions are intractable. Ruptured discs and loose fragments inside discs are removed during PELD. Nerve root decompression is usually assessed by visualizing the free movement of the traversing nerve root or epidural fat, the free passage of a probe into the epidural space, the depression of the annulus, and the removal of the expected ruptured discs and loose fragments based on preoperative magnetic resonance images (MRI)...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28535570/a-novel-combination-of-percutaneous-endoscopic-lumbar-discectomy-and-epiduroscopic-laser-neural-decompression-for-down-migrated-disc-herniation
#6
Kyung-Chul Choi, Dong Chan Lee, Choon-Keun Park
Although percutaneous endoscopic lumbar discectomy (PELD) is an effective treatment for herniated discs, its application in a disc with extensive migration is still challenging. As such, epiduroscopic laser neural decompression (ELND) provides a new view of the epidural space as well as an alternative treatment for a herniated disc and epidural fibrosis. In this paper the authors introduce the novel combination of PELD and ELND for high grade down-migrated disc herniation.An 87-year old woman presented with severe pain radiating down her leg due to high grade down-migrated disc herniation at L4-5...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/27284317/expression-levels-of-il-17-and-tnf-%C3%AE-in-degenerated-lumbar-intervertebral-discs-and-their-correlation
#7
Xiao-Gang Liu, Hong-Wei Hou, Yi-Lin Liu
The present study aimed to investigate the expression and roles of interleukin (IL)-17 and tumor necrosis factor (TNF)-α in intervertebral disc degeneration (IDD) and to identify the association between the effects of IL-17 and TNF-α in IDD. This may increase understanding of the pathogenic mechanism underlying IDD, and aid the development of alternative therapies. The experimental group consisted of 40 samples of nucleus pulposus tissue obtained from the intervertebral discs (IVDs) of patients with IDD by surgical intervention, and was further divided into an annulus fibrosus disrupted group, comprising 18 patients in which the external annulus was ruptured, and an annulus fibrosus intact group comprising 22 patients...
June 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/26774625/interleukin-23-may-contribute-to-the-pathogenesis-of-lumbar-disc-herniation-through-the-il-23-il-17-pathway
#8
Hongqiang Jiang, Yao Deng, Tao Wang, Jianxiong Ma, Pengfei Li, Peng Tian, Chao Han, Xinlong Ma
BACKGROUND: Studies have indicated that interleukin 23 (IL-23) plays an important role in many inflammatory- and autoimmune-related diseases. However, there is little knowledge about IL-23 in lumbar disc herniation (LDH). Thus, in this study, we aimed to find out whether IL-23 is expressed in intervertebral discs (IVDs) and what roles it may play. METHODS: Human IVD tissues were collected from 29 LDH patients and 8 vertebral fracture patients (normal control, NC group)...
January 16, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/26153679/the-prevalence-of-degenerative-or-incidental-findings-in-the-lumbar-spine-of-pediatric-patients-a-study-using-magnetic-resonance-imaging-as-a-screening-tool
#9
Julio Urrutia, Tomas Zamora, Carlos Prada
PURPOSE: Several studies using magnetic resonance imaging (MRI) to evaluate the lumbar spine in adults have shown a large prevalence of degenerative changes in asymptomatic subjects; however, studies in pediatric patients are scarce. Those studies have suggested a lower rate of degenerative findings in adolescents than in adults, but the actual prevalence of MRI findings in the pediatric population has not yet been determined. We aimed to determine the prevalence of degenerative changes in the lumbar spine of pediatric patients using abdominal and pelvic MRI as the screening tool...
February 2016: European Spine Journal
https://www.readbyqxmd.com/read/25996716/mesh-smoothing-algorithm-applied-to-a-finite-element-model-of-the-brain-for-improved-brain-skull-interface
#10
Mireille E Kelley, Logan E Miller, Jillian E Urban, Joel D Stitzel
The brain-skull interface plays an important role in the strain and pressure response of the brain due to impact. In this study, a finite element (FE) model was developed from a brain atlas, representing an adult brain, by converting each 1mm isotropic voxel into a single element of the same size using a custom code developed in MATLAB. This model includes the brain (combined cerebrum and cerebellum), cerebrospinal fluid (CSF), ventricles, and a rigid skull. A voxel-based approach to develop a FE model causes the outer surface of each part to be stair-stepped, which may affect the stress and strain measurements at interfaces between parts...
2015: Biomedical Sciences Instrumentation
https://www.readbyqxmd.com/read/25803222/-surprise-loading-in-flexion-increases-the-risk-of-disc-herniation-due-to-annulus-endplate-junction-failure-a-mechanical-and-microstructural-investigation
#11
Kelly R Wade, Peter A Robertson, Ashvin Thambyah, Neil D Broom
STUDY DESIGN: Microstructural investigation of compression-induced herniation of the flexed lumbar disc. OBJECTIVE: To provide a microstructural analysis of the mechanisms of annular wall failure in healthy discs subjected to flexion and a rate of compression comparable with the maximum rate at which the muscles of the spinal column can generate a force. SUMMARY OF BACKGROUND DATA: Clinical evidence indicates the involvement of the endplate in herniation...
June 15, 2015: Spine
https://www.readbyqxmd.com/read/25705330/repair-using-conventional-implant-for-ruptured-annulus-fibrosus-after-lumbar-discectomy-surgical-technique-and-case-series
#12
Bo-Gun Suh, Jae-Hyung Uh, Sang-Hyuk Park, Gun Woo Lee
STUDY DESIGN: A retrospective review of annulus fibrosus repair (AR) using a novel technique with a conventional implant. PURPOSE: The purpose of this study was to present the feasibility and clinico-radiological outcomes of a novel AR technique using a conventional implant to minimize recurrence following a lumbar discectomy (LD). OVERVIEW OF LITERATURE: Conventional repair techniques to prevent recurrence following LD have several drawbacks...
February 2015: Asian Spine Journal
https://www.readbyqxmd.com/read/25699118/everyday-memory-in-microsurgically-treated-patients-after-subarachnoid-hemorrhage
#13
Maida Koso, Kemal Dizdarevic, Jasmina Sose-Selimotic
BACKGROUND: Memory declines measured by traditional tests in patients after subarachnoid hemorrhage (SAH) are well documented. Classic examinations of memory problems sometimes do not significantly correlate with memory functions in everyday life. The objective of the study was to assess the specific type of everyday memory loss in patients after microsurgical treatment of ruptured intracranial aneurysm causing SAH. METHODS: The prospective controlled, randomized study was conducted using the specific tests for everyday memory measure with high ecological validity...
April 2015: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/25554584/a-multiscale-structural-investigation-of-the-annulus-endplate-anchorage-system-and-its-mechanisms-of-failure
#14
Samantha A Rodrigues, Ashvin Thambyah, Neil D Broom
BACKGROUND CONTEXT: The annulus-endplate anchorage system performs a critical role in the disc, creating a strong structural link between the compliant annulus and the rigid vertebrae. Endplate failure is thought to be associated with disc herniation, a recent study indicating that this failure mode occurs more frequently than annular rupture. PURPOSE: The aim was to investigate the structural principles governing annulus-endplate anchorage and the basis of its strength and mechanisms of failure...
March 1, 2015: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/25276474/distribution-and-length-of-osteophytes-in-the-lumbar-vertebrae-and-risk-of-rupture-of-abdominal-aortic-aneurysms-a-study-of-dry-bones-from-chiang-mai-thailand
#15
Patcharin Chanapa, Tohno Yoshiyuki, Pasuk Mahakkanukrauh
Vertebral osteophytes are a characteristic feature of intervertebral disc degeneration. In the lumbar spinal region, the two major structures in close proximity anterior to the spine are the inferior vena cava and the abdominal aorta, both of which have been reported to be affected by osteophytes. The purpose of this study was to determine the distribution, classification and lengths of osteophytes in the lumbar vertebrae. One hundred and eighty lumbar columns of 90 males and 90 females from Chiang Mai, Thailand, in the age range 15 to 96 years (mean age, 63 years) were collected...
September 2014: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/25232086/a-regional-assessment-of-medicaid-access-to-outpatient-orthopaedic-care-the-influence-of-population-density-and-proximity-to-academic-medical-centers-on-patient-access
#16
Brendan M Patterson, Reid W Draeger, Erik C Olsson, Jeffrey T Spang, Feng-Chang Lin, Ganesh V Kamath
BACKGROUND: Access to care is limited for patients with Medicaid with many conditions, but data investigating this relationship in the orthopaedic literature are limited. The purpose of this study was to investigate the relationship between health insurance status and access to care for a diverse group of adult orthopaedic patients, specifically if access to orthopaedic care is influenced by population density or distance from academic teaching hospitals. METHODS: Two hundred and three orthopaedic practices within the state of North Carolina were randomly selected and were contacted on two different occasions separated by three weeks...
September 17, 2014: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/25179358/traditional-chinese-medicine-treatment-for-ruptured-lumbar-disc-herniation-clinical-observations-in-102-cases
#17
Peng-fei Yu, Hong Jiang, Jin-tao Liu, Xiao-chun Li, Xiang Qian, Song Han, Zhi-jia Ma
OBJECTIVE: To explore the therapeutic effects of a traditional Chinese medicine (TCM) regimen on patients with ruptured lumbar disc herniation, including assessing its effects on prognosis and protrusion size. METHODS: From June 2008 to December 2011, 102 patients with ruptured lumbar disc herniation who chose conservative treatment with TCM as their first choice were followed up for 2 years to assess their final surgical rate, improvement according to Japanese Orthopaedic Association (JOA) scores, and to calculate the volume and rate of resorption of their protrusions by magnetic resonance imaging (MRI)...
August 2014: Orthopaedic Surgery
https://www.readbyqxmd.com/read/25069717/increase-of-nerve-growth-factor-levels-in-the-human-herniated-intervertebral-disc-can-annular-rupture-trigger-discogenic-back-pain
#18
Yasuchika Aoki, Arata Nakajima, Seiji Ohtori, Hiroshi Takahashi, Fusako Watanabe, Masato Sonobe, Fumiaki Terajima, Masahiko Saito, Kazuhisa Takahashi, Tomoaki Toyone, Atsuya Watanabe, Takayuki Nakajima, Makoto Takazawa, Koichi Nakagawa
INTRODUCTION: Nerve growth factor (NGF) has an important role in the generation of discogenic pain. We hypothesized that annular rupture is a trigger for discogenic pain through the action of NGF. In this study, the protein levels of NGF in discs from patients with disc herniation were examined and compared with those from discs of patients with other lumbar degenerative disc diseases. METHODS: Patients (n = 55) with lumbar degenerative disc disease treated by surgery were included...
2014: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/25000523/emergency-endovascular-aortic-repair-of-a-ruptured-mycotic-aorto-iliac-aneurysm-presenting-with-lumbar-radiculopathy
#19
Ting-Ying Lee, Chien-Sung Tsai, Yi-Ting Tsai, Chih-Yuan Lin, Yi-Chanag Lin, Po-Shun Hsu
Ruptured abdominal aortic aneurysm is life-threatening without immediate management. The initial clinical presentation is non-specific and impending rupture is easily missed, especially without a CT scan. We present a case of a 56-year-old man with low-back pain and left lower-extremity numbness, which was diagnosed as a herniated intervertebral disc (HIVD) with left acute sciatica syndrome. He also complained of persistent fever and abdominal discomfort. Routine blood work-up revealed leukocytosis and decreasing haemoglobin levels...
June 23, 2014: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/24904047/musculoskeletal-symptoms-and-orthopaedic-complications-in-pregnancy-pathophysiology-diagnostic-approaches-and-modern-management
#20
REVIEW
Amit Bhardwaj, Kavitha Nagandla
Low back pain is a common musculoskeletal symptom in pregnancy that can present as lumbar pain or pelvic girdle pain, with significant physical and psychosocial implications. Pelvic girdle pain is more prevalent and results in greater disability than lumbar pain. It is possible to distinguish between these two conditions from a detailed history based on the site of the pain, its intensity, disability and pain provocation tests. Management of low back pain in pregnancy is conservative, with physical exercise for lumbar pain and minimising activities that exacerbate pain, analgesics and bed rest for pelvic girdle pain, as well as avoiding abduction beyond the pain-free zone in labour...
August 2014: Postgraduate Medical Journal
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