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https://www.readbyqxmd.com/read/29786165/comparative-study-of-1-year-clinical-and-radiological-outcomes-using-robot-assisted-pedicle-screw-fixation-and-freehand-technique-in-posterior-lumbar-interbody-fusion-a-prospective-randomized-controlled-trial
#1
Ho-Joong Kim, Kyoung-Tak Kang, Heoung-Jae Chun, Ji Sup Hwang, Bong-Soon Chang, Choon-Ki Lee, Jin S Yeom
BACKGROUND: The purpose of this study was to compare the clinical outcome of surgery using robot-assisted posterior interbody fusion with that using freehand posterior interbody fusion in patients with degenerative spinal disease. METHODS: 78 participants with degenerative spinal disease were randomly allocated (1:1) to the minimally invasive (MIS), posterior lumbar interbody fusion (Robot-PLIF) or conventional, freehand, open-approach, posterior lumbar interbody fusion (Freehand-PLIF)...
May 22, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/29782398/benefit-and-harm-of-adding-epinephrine-to-a-local-anesthetic-for-neuraxial-and-locoregional-anesthesia-a-meta-analysis-of-randomized-controlled-trials-with-trial-sequential-analyses
#2
Clément Tschopp, Martin R Tramèr, Alexis Schneider, Maroun Zaarour, Nadia Elia
BACKGROUND: This systematic review examines the benefit and harm of adding epinephrine to local anesthetics for epidural, intrathecal, or locoregional anesthesia. METHODS: We searched electronic databases to October 2017 for randomized trials comparing any local anesthetic regimen combined with epinephrine, with the same local anesthetic regimen without epinephrine, reporting on duration of analgesia, time to 2 segments regression, or any adverse effects. Trial quality was assessed using the Cochrane risk of bias tool and a random-effects model was used...
May 17, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29777890/cortical-activation-changes-in-hirayama-disease-following-anterior-cervical-decompression-and-fusion
#3
Hongli Wang, Yiwei Wu, Jian Song, Jianyuan Jiang, Feizhou Lu, Xiaosheng Ma, Xinlei Xia
BACKGROUND: Spinal cord injury may cause cortical reconstruction. We, therefore, explored thechanges in cortical activation before and after anterior cervical decompression and fusion surgery in patients with Hirayama disease (HD). METHODS: 17 HD cases were performed anterior cervical decompression and fusion surgery. BOLD-fMRI scan was performed preoperatively, 3 months, 6 months and 1 year after surgery. Activated voxels were compared between both hands after adjusting for head motion, slice timing, spatial normalization and image smoothing...
May 16, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29775762/aortic-vascular-calcification-is-inversely-associated-with-the-trabecular-bone-score-in-patients-receiving-dialysis
#4
Jasna Aleksova, Samantha Kurniawan, Mirna Vucak-Dzumhur, Peter Kerr, Peter R Ebeling, Frances Milat, Grahame J Elder
INTRODUCTION: Progressive chronic kidney disease (CKD) confers a marked increase in risk for vascular calcification, cardiovascular disease, fracture and mortality, with likely contributing factors including dysregulated bone metabolism and mineral homeostasis. In general population studies, increased vascular calcification is directly related to mortality and inversely related to bone mineral density (BMD) measured by dual-energy X-ray absorptiometry (DXA). In patients with CKD, abnormalities in turnover, mineralization and bone volume, reduce the ability of DXA to predict fracture...
May 15, 2018: Bone
https://www.readbyqxmd.com/read/29770586/surgical-infection-after-posterolateral-lumbar-spine-arthrodesis-ct-analysis-of-spinal-fusion
#5
Pablo Andrés-Cano, Ana Cerván, Miguel Rodríguez-Solera, Jose Antonio Ortega, Natividad Rebollo, Enrique Guerado
OBJECTIVE: To determine the incidence of infection after instrumented lumbar spine surgery, the demographic and surgical variables associated with acute infection, and the influence of infection and debridement on the consolidation of spinal fusion. METHODS: After obtaining approval from the hospital ethics committee, an observational study was made on a prospective cohort of consecutive patients surgically treated by posterolateral lumbar spine arthrodesis (n = 139, 2005-2011)...
May 16, 2018: Orthopaedic Surgery
https://www.readbyqxmd.com/read/29765702/is-radiographic-progression-in-radiographic-axial-spondyloarthritis-related-to-matrix-metalloproteinase-degradation-of-extracellular-matrix
#6
Anne Sofie Siebuhr, Desirée van der Heijde, Anne-C Bay-Jensen, Morten Asser Karsdal, Robert Landewé, Astrid van Tubergen, Sofia Ramiro
Background: Radiographic axial spondyloarthritis (r-axSpA) is associated with extracellular matrix (ECM) remodelling of affected tissues. We investigated whether there was a relationship between biomarkers of ECM remodelling and 2-year radiographic progression in r-axSpA. Methods: Patients from the Outcome in Ankylosing Spondylitis International Study (OASIS) were included if they had serum, clinical and spinal radiographic assessments available at baseline and 2 years later...
2018: RMD Open
https://www.readbyqxmd.com/read/29762340/external-validation-of-the-adult-spinal-deformity-asd-frailty-index-asd-fi-in-the-scoli-risk-1-patient-database
#7
Emily K Miller, Lawrence G Lenke, Brian J Neuman, Daniel M Sciubba, Khaled M Kebaish, Justin S Smith, Yong Qiu, Benny T Dahl, Ferran Pellisé, Yukihiro Matsuyama, Leah Y Carreon, Michael G Fehlings, Kenneth M Cheung, Stephen Lewis, Mark B Dekutoski, Frank J Schwab, Oheneba Boachie-Adjei, Hossein Mehdian, Shay Bess, Christopher I Shaffrey, Christopher P Ames
STUDY DESIGN: Analysis of a prospective multicenter database. OBJECTIVE: To assess the ability of the recently created Adult Spinal Deformity (ASD) Frailty Index (ASD-FI) to predict odds of major complications and length of hospital stay for patients who had more severe preoperative deformity and underwent more invasive ASD surgery compared with patients in the database used to create the index. SUMMARY OF BACKGROUND DATA: Accurate preoperative estimates of risk are necessary given the high complication rates currently associated with ASD surgery...
May 14, 2018: Spine
https://www.readbyqxmd.com/read/29761788/block-based-robust-control-of-stepping-using-intraspinal-microstimulation
#8
Ehsan Rouhani, Abbas Erfanian
OBJECTIVE: The problem of motor control using intraspinal microstimulation (ISMS) can be approached at two levels of the motor system: individual muscles (motor pools) and motor primitives. The major challenges of direct ISMS at the level of individual muscle are the number of electrodes that are required to be implanted in order to recruit all muscles involving the motion and the muscle selectivity. One solution to cope with these problems is the control of movement generated by appropriate combination of the movement primitives...
May 15, 2018: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29752149/tourniquet-pressure-settings-based-on-limb-occlusion-pressure-determination-or-arterial-occlusion-pressure-estimation-in-total-knee-arthroplasty-a-prospective-randomized-double-blind-trial
#9
Bahattin Tuncali, Hakan Boya, Zeynep Kayhan, Sukru Arac
OBJECTIVE: The aim of this study was to compare the limb occlusion pressure (LOP) determination and arterial occlusion pressure (AOP) estimation methods for tourniquet pressure setting in adult patients undergoing knee arthroplasty under combined spinal-epidural anesthesia. METHODS: Ninety-three patients were randomized into two groups. Pneumatic tourniquet inflation pressures were adjusted based either on LOP determination or AOP estimation in Group 1 (46 patients, 38 female and 8 male; mean age: 67...
May 8, 2018: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29746537/kinetic-and-kinematic-variables-affecting-trunk-flexion-during-level-walking-in-patients-with-lumbar-spinal-stenosis
#10
Tatsuya Igawa, Junji Katsuhira, Akira Hosaka, Kenta Uchikoshi, Shinichi Ishihara, Ko Matsudaira
Lumbar spinal stenosis causes cauda equina and nerve root compression, resulting in neurological symptoms. Although trunk flexion during level walking may alleviate these symptoms by enabling spinal canal decompression, some patients do not use this strategy. We aimed to identify the kinetic and kinematic variables that affect trunk flexion in patients during level walking. Gait was recorded in 111 patients using a three-dimensional motion capture system and six force plates. From the data recorded, walking velocity, bilateral step length, cycle time, maximum trunk flexion angle, forward pelvic tilt angle, pelvic rotation angle, maximum and minimum joint angles, and moment and power of the lower limb were calculated...
2018: PloS One
https://www.readbyqxmd.com/read/29745132/monitoring-metabolic-reactions-in-staphylococcus-epidermidis-exposed-to-silicon-nitride-using-in-situ-time-lapse-raman-spectroscopy
#11
Francesco Boschetto, Tetsuya Adachi, Satoshi Horiguchi, Danny Fainozzi, Fulvio Parmigiani, Elia Marin, Wenliang Zhu, Bryan McEntire, Toshiro Yamamoto, Narisato Kanamura, Osam Mazda, Eriko Ohgitani, Giuseppe Pezzotti
Staphylococcus epidermidis (S. epidermidis) is one of the leading nosocomial pathogens, particularly associated with periprosthetic infections of biomedical implants. Silicon nitride (Si3N4), a nonoxide biomaterial widely used in spinal implants, has shown bacteriostatic effects against both gram-positive and gram-negative bacteria; however, the physicochemical interactions between Si3N4 and bacteria yet remain conspicuously unexplored. In situ time-lapse Raman spectroscopic experiments were conducted by exposing S...
May 2018: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29743962/a-comparative-study-between-transcutaneous-electrical-nerve-stimulation-and-fentanyl-to-relieve-shoulder-pain-during-laparoscopic-gynecologic-surgery-under-spinal-anesthesia-a-randomized-clinical-trail
#12
Zahra Asgari, Zahra Tavoli, Reihaneh Hosseini, Masoomeh Nataj, Fatemeh Tabatabaei, Fatemeh Dehghanizadeh, Hosein Haji-Amoo-Assar, Mahdi Sepidarkish, Ali Montazeri
Background: Traditionally, laparoscopic procedures have been performed under general anesthesia. Spinal anesthesia is an effective alternative to general anesthesia. However, one of the intraoperative complications of performing laparoscopic surgery under spinal anesthesia is shoulder pain. This study aimed to compare the effect of transcutaneous electrical nerve stimulation (TENS) with fentanyl on pain relief in patients who underwent gynecologic laparoscopy under spinal anesthesia. Methods: We conducted a prospective randomized clinical trial from May 2016 to March 2017...
2018: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/29738366/effects-of-combined-magnetic-fields-treatment-and-nano-hydroxyapatite-coating-on-porous-biphasic-calcium-phosphate-bone-graft-in-rabbit-spinal-fusion-model
#13
Xianglong Zhuo, Chentian Li, Bing Li, Zhaoyang Li, Hongbin Lv, Jianjun Huang, Daqi Xu, Jianzhong Hu
STUDY DESIGN: An animal experimental study was designed to investigate the efficacy of combined magnetic fields (CMF) treatment and nano-hydroxyapatite (HA) coating in the biphasic calcium phosphate (BCP) graft in posterolateral lumbar fusion. OBJECTIVE: To evaluate the effects of CMF treatment and nano-HA/BCP and their combination effect in posterolateral lumbar fusion. SUMMARY OF BACKGROUND DATA: Enhancement of artificial bone graft bioeffects could improve spinal fusion outcomes...
June 1, 2018: Spine
https://www.readbyqxmd.com/read/29733988/cardiac-related-spinal-cord-tissue-motion-at-the-foramen-magnum-is-elevated-in-type-i-chiari-malformation-patients-and-decreases-post-decompression-surgery
#14
Braden J Lawrence, Mark Luciano, John Tew, Richard G Ellenbogen, John N Oshinski, Francis Loth, Amanda P Culley, Bryn A Martin
OBJECTIVE: Type 1 Chiari malformation (CM-I) is a craniospinal disorder historically defined by cerebellar tonsillar position (TP) greater than 3-5mm below the foramen magnum (FM). This definition has come under question since quantitative measurements of cerebellar herniation do not always correspond with symptom severity. Researchers have proposed several additional radiographic diagnostic criteria based on dynamic motion of fluids and/or tissues. The present study objective was to determine if cardiac-related craniocaudal spinal cord tissue displacement is an accurate indicator of the presence of CM-I and if tissue displacement is altered with decompression...
May 4, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29733774/the-use-of-inferior-vena-cava-filters-in-spine-trauma-a-nationwide-study-using-the-national-trauma-data-bank
#15
Samir Sabharwal, Adam D Fox, Michael J Vives
Objective To determine the prevalence and variation of inferior vena cava filter (IVCF) use in the spine trauma population and evaluate patient and facility level factors associated with their use. Study Design Retrospective cohort. Participants/Outcome Measures Patients with spinal injuries were identified by ICD-9 codes from the National Trauma Data Bank (NTDB), the best validated national trauma database. Patients whose spine injuries were operatively treated and those who received IVCF were identified from procedure description fields...
May 7, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29729005/can-the-positive-association-of-osteocalcin-with-testosterone-be-unmasked-when-the-preeminent-hypothalamic-pituitary-regulation-of-testosterone-production-is-impaired-the-model-of-spinal-cord-injury
#16
A Barbonetti, S D'Andrea, J Samavat, A Martorella, G Felzani, S Francavilla, M Luconi, F Francavilla
PURPOSE: Osteocalcin (OCN), released from the bone matrix during the resorption phase, in its undercarboxylated form, stimulates testosterone (T) biosynthesis in mouse and a loss-of-function mutation of its receptor was associated with hypergonadotropic hypogonadism in humans. Nevertheless, when population-based studies have explored the OCN-T association, conflicting results have been reported. Hypothesizing that the evidence of a positive association between OCN and T could have been hindered by the preeminent role of a well-functioning hypothalamus-pituitary axis in promoting T biosynthesis, we explored this association in men with chronic spinal cord injury (SCI), exhibiting high prevalence of non-hypergonadotropic androgen deficiency...
May 4, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29720934/reticulospinal-systems-for-tuning-motor-commands
#17
REVIEW
Robert M Brownstone, Jeremy W Chopek
The pontomedullary reticular formation (RF) is a key site responsible for integrating descending instructions to execute particular movements. The indiscrete nature of this region has led not only to some inconsistencies in nomenclature, but also to difficulties in understanding its role in the control of movement. In this review article, we first discuss nomenclature of the RF, and then examine the reticulospinal motor command system through evolution. These command neurons have direct monosynaptic connections with spinal interneurons and motoneurons...
2018: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/29705337/cost-effectiveness-of-circumferential-fusion-for-lumbar-spondylolisthesis-propensity-matched-comparison-of-transforaminal-lumbar-interbody-fusion-versus-anterior-posterior-fusion
#18
Ehsan Jazini, Jeffrey L Gum, Steven D Glassman, Charles H Crawford, Mladen Djurasovic, R Kirk Owens, John R Dimar, Katlyn E McGraw, Leah Y Carreon
BACKGROUND CONTEXT: Transforaminal Lumbar Interbody Fusion (TLIF) and dual approach antero-posterior (AP) are common techniques to achieve circumferential fusion for lumbar spondylolisthesis. It is unclear which approach is more cost-effective. PURPOSE: Our goal is to determine the incremental cost-effectiveness ratio (ICER) by calculating the cost per quality-adjusted life year (QALY) for each approach. STUDY DESIGN/SETTING: Propensity matched cost-effectiveness comparison...
April 26, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29705336/does-intrawound-vancomycin-powder-reduce-surgical-site-infection-after-posterior-instrumented-spinal-surgery-a-propensity-score-matched-analysis
#19
Chiaki Horii, Takashi Yamazaki, Hiroyuki Oka, Seiichi Azuma, Satoshi Ogihara, Rentaro Okazaki, Naohiro Kawamura, Yuichi Takano, Jiro Morii, Yujiro Takeshita, Toru Maruyama, Kiyofumi Yamakawa, Motoaki Murakami, Yasushi Oshima, Sakae Tanaka
BACKGROUND CONTEXT: Recent reports suggested that placing vancomycin powder into surgical wounds before closure can prevent surgical site infections (SSIs) in spinal surgery. PURPOSE: To evaluate if intrawound vancomycin powder can prevent SSIs after spinal surgery with posterior instrumentation. STUDY DESIGN: A multi-center retrospective cohort study using propensity score matching. PATIENT SAMPLE: We reviewed all spinal surgeries performed with posterior instrumentation from July 2012 to December 2014 at 11 institutions among patients aged ≥15 years...
April 26, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29703703/assessing-the-utility-of-the-spinal-instability-neoplastic-score-sins-to-predict-fracture-after-conventional-radiation-therapy-rt-for-spinal-metastases
#20
Diana D Shi, Lauren M Hertan, Tai Chung Lam, Sonia Skamene, John H Chi, Michael Groff, Charles H Cho, Marco L Ferrone, Mitchel Harris, Yu-Hui Chen, Tracy A Balboni
PURPOSE: Assessing the stability of spinal metastases is critical for making treatment decisions. The spinal instability neoplastic score (SINS) was developed by the Spine Oncology Study Group to categorize tumor-related lesions; however, data describing its utility in predicting fractures in patients with spinal metastases are limited. The purpose of this study is to assess the validity of SINS in predicting new or worsening fracture after radiation therapy (RT) to spine metastases. METHODS AND MATERIALS: This is a retrospective analysis of patients treated with conventional RT alone (median total dose, 30 Gy; range, 8-47 Gy; median number of fractions, 10; range, 1-25) for spinal metastasis at Dana-Farber/Brigham and Women's Cancer Center from 2006 to 2013...
February 13, 2018: Practical Radiation Oncology
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