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https://www.readbyqxmd.com/read/28528480/full-endoscopic-treatment-of-dural-tears-in-lumbar-spine-surgery
#1
Joachim M Oertel, Benedikt W Burkhardt
PURPOSE: An incidental durotomy is a common complication of spinal surgery. Its treatment remains challenging, especially in endoscopic procedures. The objective of this study is to describe a technique for endoscopic dural closure which is safe and effective. METHODS: From a prospective database all endoscopic spinal procedures with incidental durotomy were identified. Retrospectively, video recordings were analysed with a special reference to the applied technique of dural closure...
May 20, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28507186/zygapophyseal-joint-fusion-in-ankylosing-spondylitis-assessed-by-computed-tomography-associations-with-syndesmophytes-and-spinal-motion
#2
Sovira Tan, Jianhua Yao, John A Flynn, Lawrence Yao, Michael M Ward
OBJECTIVE: Because zygapophyseal joints (ZJ) are difficult to visualize on radiographs, little is known about the relationship of ZJ fusion to other features of spinal damage in ankylosing spondylitis (AS). We used computed tomography (CT) to investigate the concordance of ZJ fusion and syndesmophytes, and examined the contribution of both features to spinal motion. METHODS: We performed thoracolumbar CT scans (T10-T11 to L3-L4) on 55 patients. Two readers scored scans for ZJ fusion, which were compared to syndesmophyte height and extent of bridging, measured by computer algorithm at the same levels...
May 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28505029/treatment-options-for-failed-back-surgery-syndrome-fbss-patients-with-refractory-chronic-pain-an-evidence-based-approach
#3
Kasra Amirdelfan, Lynn Webster, Lawrence Poree, Vishad Sukul, Porter McRoberts
STUDY DESIGN: A significant number of lumbar post-surgical patients continue to suffer persistent pain and limited function and are termed to have "Failed back surgery syndrome" (FBSS). This review evaluates clinical trial data for the treatment of FBSS patients. OBJECTIVE: Using an evidence-based approach to evaluate FBSS treatments will assist clinicians in choosing the most effective options for FBSS patients. Furthermore, reducing the utilization of less effective therapies may result in substantial financial savings for this patient population...
April 12, 2017: Spine
https://www.readbyqxmd.com/read/28484552/isolated-lumbar-intradural-extra-medullary-spinal-cysticercosis-simulating-tarlov-cyst
#4
Sumit Bansal, Ashish Suri, Mehar Chand Sharma, Aanchal Kakkar
Spinal cysticercosis is a very uncommon manifestation of neurocysticercosis, which is caused by the larvae of Taenia solium. Here, we present a rare case of isolated lumbar intradural extramedullary neurocysticercosis, initially thought to be Tarlov cyst. A 40-year-old man, presented with low backache for 1-year with radiation of pain to right leg for 3 months. The patient was treated successfully with the surgical removal of the cyst, followed by medical treatment. Spinal neurocysticercosis should be considered in the differential diagnosis in high-risk populations, with new symptoms suggestive of a spinal mass lesion...
April 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28456675/stability-preserving-decompression-in-degenerative-versus-congenital-spinal-stenosis-demographic-patterns-and-patient-outcomes
#5
Philip K Louie, Justin C Paul, Jonathan Markowitz, Joshua A Bell, Bryce A Basques, Alem Yacob, Howard S An
BACKGROUND: Context: Although lumbar spinal stenosis often presents as a degenerative condition, some patients present with symptoms from lifelong narrowing of the spinal canal. These patients have congenital stenosis (CS) and present with symptoms of stenosis at a younger age. CS patients often have a distinct pathophysiology with fewer degenerative changes but present with multi-level involvement. In the setting of neurological symptoms, decompression-alone while preserving stability, has been proposed for both patient populations...
April 26, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28455623/classification-of-normal-sagittal-spine-alignment-refounding-the-roussouly-classification
#6
Féthi Laouissat, Amer Sebaaly, Martin Gehrchen, Pierre Roussouly
PURPOSE: Although the Roussouly classification of common variants in spinal sagittal alignment is well accepted, no studies have implemented it in an asymptomatic adult population. In addition, no study investigated the radiographic features of asymptomatic patients with an anteverted pelvis. The aim of this prospective radiographic study of 296 asymptomatic adults without spinal pathology was to investigate how the Roussouly classification could include the anteverted pelvis concept...
April 28, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28449965/comparison-of-a-newer-versus-older-protocol-for-circumferential-minimally-invasive-surgical-cmis-correction-of-adult-spinal-deformity-asd-evolution-over-a-10-year-experience
#7
Neel Anand, Jason Ezra Cohen, Ryan Baruch Cohen, Babak Khandehroo, Sheila Kahwaty, Eli Baron
STUDY DESIGN: Retrospective. OBJECTIVES: Compare circumferential minimally invasive surgical (CMIS) correction outcomes of patients treated for adult spinal deformity (ASD) with a newer versus older protocol SUMMARY OF BACKGROUND DATA: CMIS techniques have become increasingly popular. Increasing experience and learning curve may help improve outcomes. METHODS: A prospectively collected database was queried for all patients who underwent CMIS correction of ASD (Cobb angle >20° or sagittal vertical axis [SVA] >50 mm or pelvic incidence-lumbar lordosis mismatch >10) at 3+ levels...
May 2017: Spine Deformity
https://www.readbyqxmd.com/read/28448270/a-new-in-vitro-spine-test-rig-to-track-multiple-vertebral-motions-under-physiological-conditions
#8
Agnes Beckmann, Christian Herren, Marion Mundt, Jan Siewe, Philipp Kobbe, Rolf Sobottke, Hans-Christoph Pape, Marcus Stoffel, Bernd Markert
In vitro pure moment spine tests are commonly used to analyse surgical implants in cadaveric models. Most of the tests are performed at room temperature. However, some new dynamic instrumentation devices and soft tissues show temperature-dependent material properties. Therefore, the aim of this study is to develop a new test rig, which allows applying pure moments on lumbar spine specimens in a vapour-filled chamber at body temperature. As no direct sight is given in the vapour-filled closed chamber, a magnetic tracking (MT) system with implantable receivers was used...
April 27, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28443174/clinical-and-radiological-outcomes-after-microscopic-bilateral-decompression-via-a-unilateral-approach-for-degenerative-lumbar-disease-minimum-5-year-follow-up
#9
Sho Dohzono, Hiromitsu Toyoda, Akira Matsumura, Hidetomi Terai, Akinobu Suzuki, Hiroaki Nakamura
STUDY DESIGN: A retrospective study. PURPOSE: To assess postoperative bone regrowth at surgical sites after lumbar decompression with >5 years of follow-up. Postoperative preservation of facet joints and segmental spinal instability following surgery were also evaluated. OVERVIEW OF LITERATURE: Previous reports have documented bone regrowth after conventional laminectomy or laminotomy and several factors associated with new bone formation...
April 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28441309/trends-complications-and-costs-for-hospital-admission-and-surgery-for-lumbar-spinal-stenosis
#10
Gustavo C Machado, Chris G Maher, Paulo H Ferreira, Ian A Harris, Richard A Deyo, Damien McKay, Qiang Li, Manuela L Ferreira
STUDY DESIGN: Population based health record linkage study. OBJECTIVE: To determine trends in hospital admissions and surgery for lumbar spinal stenosis, as well as complications and resource use in Australia. SUMMARY OF BACKGROUND DATA: In the United States, rates of decompression surgery have declined, whereas those of fusion have increased. It is unclear whether this trend is also happening elsewhere. METHODS: We included patients 18 years and older admitted to a hospital in New South Wales between 2003-2013, who were diagnosed with lumbar spinal stenosis...
April 24, 2017: Spine
https://www.readbyqxmd.com/read/28441307/90-day-readmission-after-lumbar-spinal-fusion-surgery-in-new-york-state-between-2005-and-2014-a-10-year-analysis-of-a-statewide-cohort
#11
Ali A Baaj, Gernot Lang, Wei-Chun Hsu, Mauricio J Avila, Jialin Mao, Art Sedrakyan
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To assess 90-day readmission and evaluate risk factors associated with readmission after lumbar fusion in New York State. SUMMARY OF BACKGROUND DATA: Readmission is becoming an important metric for quality and efficiency of healthcare. Readmission and its predictors following spine surgery are overall poorly understood and limited evidence is available specifically in lumbar fusion. METHODS: The New York Statewide Planning and Research Cooperative System (SPACRS) was utilized to capture patients undergoing lumbar fusion from 2005-2014...
April 24, 2017: Spine
https://www.readbyqxmd.com/read/28437349/a-new-navigational-tool-for-pedicle-screw-placement-in-patients-with-severe-scoliosis-a-pilot-study-to-prove-feasibility-accuracy-and-identify-operative-challenges
#12
Michael Putzier, Patrick Strube, Riccardo Cecchinato, Claudio Lamartina, Eike K Hoff
STUDY DESIGN: Pilot study. OBJECTIVE: To develop and validate the feasibility and accuracy of a newly designed navigational spinal instrument guiding tool for patient-matched thoracic and lumbar pedicle screw placement in patients with severe scoliosis, and to identify intraoperative challenges that may be relevant. SUMMARY OF BACKGROUND DATA: Pedicle screw placement is challenging in severely rotated scoliotic spine with small diameters and asymmetrical shape of the pedicles and vertebrae...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28437223/exercise-and-peripheral-nerve-grafts-as-a-strategy-to-promote-regeneration-after-acute-or-chronic-spinal-cord-injury
#13
Catherine C Theisen, Rahul Sachdeva, Scarlett Austin, Danielle Kulich, Victoria Kranz, John D Houle
Therapeutic interventions after spinal cord injury (SCI) routinely are designed to address multiple aspects of the primary and/or secondary damage that occurs. Exercise has a demonstrated efficacy for post-SCI complications such as cardiovascular dysfunction, neuropathic pain, and chronic inflammation, yet there is little understanding of the mechanisms by which improvements might result from this non-invasive approach. Here we review several of our observations of molecular and cellular changes within the injured spinal cord following acute or delayed exercise regimens that illustrate the potential for positive effects on neuroprotection and rehabilitation...
May 15, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28427472/optimising-conservative-management-of-chronic-low-back-pain-study-protocol-for-a-randomised-controlled-trial
#14
Katherine J Simson, Clint T Miller, Jon Ford, Andrew Hahne, Luana Main, Timo Rantalainen, Wei-Peng Teo, Megan Teychenne, David Connell, Guy Trudel, Guoyan Zheng, Gary Thickbroom, Daniel L Belavy
BACKGROUND: Lower back pain is a global health issue affecting approximately 80% of people at some stage in their life. The current literature suggests that any exercise is beneficial for reducing back pain. However, as pain is a subjective evaluation and physical deficits are evident in low back pain, using it as the sole outcome measure to evaluate superiority of an exercise protocol for low back pain treatment is insufficient. The overarching goal of the current clinical trial is to implement two common, conservative intervention approaches and examine their impact on deficits in chronic low back pain...
April 20, 2017: Trials
https://www.readbyqxmd.com/read/28412561/metastatic-human-breast-cancer-to-the-spine-produces-mechanical-hyperalgesia-and-gait-deficits-in-rodents
#15
Rachel Sarabia-Estrada, Alejandro Ruiz-Valls, Hugo Guerrero-Cazares, Ana M Ampuero, Ismael Jimenez-Estrada, Samantha De Silva, Lydia J Bernhardt, C Rory Goodwin, A Karim Ahmed, Yuxin Li, Neil A Phillips, Ziya L Gokaslan, Alfredo Quiñones-Hinojosa, Daniel M Sciubba
BACKGROUND CONTEXT: Metastases to the spine are a common source of severe pain in cancer patients. The secondary effects of spinal metastases include pain, bone fractures, hypercalcemia, and neurological deficits. As the disease progresses, pain severity can increase until it becomes refractory to medical treatments and leads to a decreased quality of life for patients. A key obstacle in the study of pain-induced spinal cancer is the lack of reliable and reproducible spine cancer animal models...
April 13, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28408761/endothelial-and-astrocytic-support-by-human-bone-marrow-stem-cell-grafts-into-symptomatic-als-mice-towards-blood-spinal-cord-barrier-repair
#16
Svitlana Garbuzova-Davis, Crupa Kurien, Avery Thomson, Dimitri Falco, Sohaib Ahmad, Joseph Staffetti, George Steiner, Sophia Abraham, Greeshma James, Ajay Mahendrasah, Paul R Sanberg, Cesario V Borlongan
Vascular pathology, including blood-CNS barrier (B-CNS-B) damage via endothelial cell (EC) degeneration, is a recently recognized hallmark of Amyotrophic Lateral Sclerosis (ALS) pathogenesis. B-CNS-B repair may be a new therapeutic approach for ALS. This study aimed to determine effects of transplanted unmodified human bone marrow CD34+ (hBM34+) cells into symptomatic G93A mice towards blood-spinal cord barrier (BSCB) repair. Thirteen weeks old G93A mice intravenously received one of three different doses of hBM34+ cells...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28399557/radiological-results-and-clinical-patient-outcome-after-implantation-of-a-hydraulic-expandable-vertebral-body-replacement-following-traumatic-vertebral-fractures-in-the-thoracic-and-lumbar-spine-a-3-year-follow-up
#17
Michael Kreinest, Dorothee Schmahl, Paul A Grützner, Stefan Matschke
STUDY DESIGN: A prospective monocentric study. OBJECTIVE: The aim of the current study was the analysis of patient outcome and radiological results 3 years after implantation of a hydraulic expandable vertebral body replacement (VBR) system. SUMMARY OF BACKGROUND DATA: Around 70% to 90% of all traumatic spinal fractures are located in the thoracic and lumbar spine. Dorso-ventral stabilization is a frequently used procedure in traumatic vertebral body fracture treatment...
April 15, 2017: Spine
https://www.readbyqxmd.com/read/28376780/kinematic-characteristics-of-lumbar-spinous-processes-during-axial-rotation-in-patients-with-lumbar-degenerative-disc-disease-lateral-lumbar-interbody-fusion-and-intervention
#18
BaoLiang Zhang, Wenhan Huang, Hong Xia, Xinglong Feng
BACKGROUND: Data about minimally invasive surgery for the treatment of patients with degenerative disc disease (DDD) has been reported. However, no quantitative knowledge about the biomechanical characteristics of the spinous processes in patients with DDD after operation was reported in the literature. METHODS: Fourteen adult patients with DDD at the L3-4 level were recruited and scanned using computed tomography (CT) to construct three-dimensional (3D) anatomical vertebral models of L2-5...
April 4, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28375425/ct-osteoabsorptiometry-ct-oam-a-new-investigation-technique-in-the-field-of-mummy-research
#19
Anna Christina Hirsch, Gerhard Hotz, Wilfried Rosendahl, Valentin Zumstein, Frank J Rühli, Magdalena Müller-Gerbl
Introduction: The scientific study of mummies provides an insight into the life of past populations. Using CT-Osteoabsorptiometry (CT-OAM), a noninvasive technique based on conventional CT-data sets, it is possible to visualize the mineral density distribution in the subchondral bone plate, representing the long-term loading conditions of the articulation surface. The objective of the current study was to investigate the applicability of CT-OAM on mummies for the load analysis of joints as a new investigation technique in the field of mummy research...
April 4, 2017: Anthropologischer Anzeiger; Bericht über die Biologisch-anthropologische Literatur
https://www.readbyqxmd.com/read/28373604/a-new-concept-of-transforaminal-ventral-facetectomy-including-simultaneous-decompression-of-foraminal-and-lateral-recess-stenosis-technical-considerations-in-a-fresh-cadaver-model-and-a-literature-review
#20
Koichi Sairyo, Kosaku Higashino, Kazuta Yamashita, Fumio Hayashi, Keizo Wada, Toshinori Sakai, Yoichiro Takata, Fumitake Tezuka, Masatoshi Morimoto, Tomoya Terai, Takashi Chikawa, Hiroshi Yonezu, Akihiro Nagamachi, Yoshihiro Fukui
Percutaneous endoscopic surgery for the lumbar spine, which was established in the last decade, requires only an 8-mm skin incision and causes minimal damage to the paravertebral muscles; thus, it is considered to be a minimally invasive technique for spinal surgery. It has been used to perform percutaneous endoscopic discectomy via two main approaches: the TF approach is a posterolateral one through the intervertebral foramen and can be done under local anesthesia; the IL approach is a more traditional one through the interlaminar space and is difficult to perform under local anesthesia...
2017: Journal of Medical Investigation: JMI
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