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https://www.readbyqxmd.com/read/28727996/efficacy-and-safety-of-one-stage-posterior-hemivertebral-resection-for-unbalanced-multiple-hemivertebrae-a-more-than-2-year-follow-up
#1
Yong Huang, Ganjun Feng, Yueming Song, Limin Liu, Chunguang Zhou, Lei Wang, Zhongjie Zhou, Xi Yang
OBJECTIVE: One-stage posterior hemivertebral resection has been proven to be an effective, reliable surgical option for treating congenital scoliosis due to a single hemivertebra. To date, however, no studies of treating unbalanced multiple hemivertebrae have appeared. This study evaluated the efficacy and safety of one-stage posterior hemivertebral resection for unbalanced multiple hemivertebrae. PATIENTS AND METHODS: Altogether, we studied 15 patients with unbalanced multiple hemivertebrae who had undergone hemivertebral resection using the one-stage posterior approach with at least 2 years of follow-up...
July 12, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28725909/skeletal-fluorosis-due-to-fluorocarbon-inhalation-from-an-air-dust-cleaner
#2
Katherine Peicher, Naim M Maalouf
Skeletal fluorosis (SF) is an osteosclerotic metabolic bone disorder caused by excessive ingestion or inhalation of fluoride. SF is extremely rare in developed countries. We report a case of SF due to inhalational abuse from a fluoride-containing air dust cleaner. A 33-year-old man with no past medical history presented with progressively worsening low back pain for 2 years. Physical examination was notable for loss of lumbar lordosis and tenderness over the lumbar spine. Radiographs were notable for uniform generalized osteosclerosis in the long bones, entire spine, rib cage, and pelvic bones, and loss of the normal lumbar curvature...
July 20, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28709833/anterior-reduction-and-fusion-for-treatment-of-massive-tear-drop-fracture-of-axis-combining-with-inferior-endplate-serious-traversed-lesion-a-retrospective-study
#3
Tao Jiang, Hong Yin, Xian-Jun Ren, Tong-Wei Chu, Wei-Dong Wang, Chang-Qing Li
BACKGROUND: Tear drop fracture of axis represents a very small percentage of injuries of the cervical spine, but there is controversy about the treatment method for tear drop fracture of axis, especially when a large avulsed fragment is significant displacement, which combined with the inferior endplate serious traversed lesion of axis. OBJECTIVE: To evaluate the clinical outcome of anterior reduction, graft fusion of C2-3 and plate fixation in the management of massive tear drop fracture of axis combining with inferior endplate serious traversed lesion of axis...
July 11, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28708041/microendoscopic-laminotomy-versus-conventional-laminoplasty-for-cervical-spondylotic-myelopathy-5-year-follow-up-study
#4
Akihito Minamide, Munehito Yoshida, Andrew K Simpson, Hiroshi Yamada, Hiroshi Hashizume, Yukihiro Nakagawa, Hiroshi Iwasaki, Shunji Tsutsui, Motohiro Okada, Masanari Takami, Shin-Ichi Nakao
OBJECTIVE The goal of this study was to characterize the long-term clinical and radiological results of articular segmental decompression surgery using endoscopy (cervical microendoscopic laminotomy [CMEL]) for cervical spondylotic myelopathy (CSM) and to compare outcomes to conventional expansive laminoplasty (ELAP). METHODS Consecutive patients with CSM who required surgical treatment were enrolled. All enrolled patients (n = 78) underwent CMEL or ELAP. All patients were followed postoperatively for more than 5 years...
July 14, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28707133/changes-of-spinopelvic-parameters-in-different-positions
#5
Soo-An Park, Dai-Soon Kwak, Ho-Jung Cho, Dong-Uk Min
INTRODUCTION: To observe changes of spinopelvic parameters and the presence of pelvic incidence (PI) variation in different positions, and the accuracy of PI compared with CT scan. MATERIALS AND METHODS: Patients with standing whole-spine radiograph, CT scan of the pelvic bone, and MRI of the lumbar spine done within a few days were included. The pelvic [pelvic tilt (PT), sacral slope (SS), and PI] and spinal [lumbar lordosis (LL)] parameters were measured by two different observers...
July 13, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28704907/effect-of-modic-changes-in-cervical-degenerative-disease
#6
Kyung Tag Kang, Dong Wuk Son, Oik Kwon, Su Hun Lee, Jong Uk Hwang, Dong Ha Kim, Jun Seok Lee, Geun Sung Song
OBJECTIVE: Modic changes are signal intensity changes in adjacent vertebral bone marrow on magnetic resonance imaging. Few studies have investigated these changes with regard to the cervical spine. In this study, we investigated the associations between cervical degenerative disease and Modic changes. METHODS: We conducted a retrospective collection of radiological data in patients with neck pain at Pusan National University Yangsan Hospital from January 2010 to December 2014...
June 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/28704331/mis-single-position-lateral-and-oblique-lateral-lumbar-interbody-fusion-and-bilateral-pedicle-screw-fixation-feasibility-and-perioperative-results
#7
Daniel J Blizzard, J Alex Thomas
STUDY DESIGN: Retrospective review of prospectively collected data of the first 72 consecutive patients treated with single-position one- or two-level lateral (LLIF) or oblique lateral interbody fusion (OLLIF) with bilateral percutaneous pedicle screw and rod fixation by a single spine surgeon. OBJECTIVE: To evaluate the clinical feasibility, accuracy, and efficiency of a single-position technique for LLIF and OLLIF with bilateral pedicle screw and rod fixation...
July 12, 2017: Spine
https://www.readbyqxmd.com/read/28698940/radiological-outcome-of-postoperative-sagittal-balance-on-standing-radiographs-in-comparison-to-intraoperative-radiographs-in-prone-position-when-performing-lumbar-spinal-fusion
#8
Felix Greimel, Stefanie Wolkerstorfer, Jan-Frederik Spörrer, Florian Zeman, Patrick Hoffstetter, Joachim Grifka, Achim Benditz
PURPOSE: Aim of this study is to show the outcome of postoperatively measured lumbar lordosis in upright position in comparison to the intraoperatively estimated lumbar lordosis in prone position, as the lumbar lordosis is one of the most important factors for the clinical outcome after spinal fusion. MATERIALS AND METHODS: Eighty-two patients, receiving lumbar fusion were included in this retrospective study. Intraoperative radiographs were scanned. Then radiographs of the whole spine pre- and postoperatively, as well as 1 year after surgery were measured by a spine surgeon and a radiologist...
July 11, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28694217/the-magnitude-of-angular-and-translational-displacement-of-dens-fractures-is-dependent-on-the-sagittal-alignment-of-the-cervical-spine-rather-than-the-force-of-injury
#9
Sabina R Blizzard, Bala Krishnamoorthy, Matthew Shinseki, Marcel Betsch, Jung Yoo
BACKGROUND CONTEXT: Although it is generally believed that the magnitude of dens fracture displacement is proportional to the amount of force applied to the cervical spine during injury, the factors responsible for displacement have not been studied. PURPOSE: Our aim was to determine factors which contribute to horizontal and angular displacement of dens fractures. STUDY DESIGN/SETTING: We conducted a retrospective review of adult patients who were admitted to our level one trauma center between 1/1/2008 and 12/31/2013...
July 7, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28694216/an-analysis-of-radiographic-parameters-comparison-between-lumbar-spine-latericumbent-and-full-length-lateral-standing-radiographs
#10
Zhiwei Yang, Fang Xie, Jianxin Zhang, Zhuowen Liang, Zhe Wang, Xueyu Hu, Zhuojing Luo
BACKGROUND CONTEXT: The lumbar spine latericumbent and full-length lateral standing radiographs are most commonly used to assess lumbar disorder. However, there are few literatures regarding the difference and correlation of the sagittal parameters between the two shooting positions. PURPOSE: To investigate the difference of sagittal parameters in spine lateral radiographs between latericumbent and upright positions, identify the correlation and establish a preliminary linear fitting formula...
July 7, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28690681/modified-technique-of-transforaminal-lumbar-interbody-fusion-for-segmental-correction-of-lumbar-kyphosis-a-safe-alternative-to-osteotomies
#11
Sebastian Weckbach, Heiko Reichel, Michael Kraus, Tugrul Kocak, Friederike Lattig
BACKGROUND: Sagittal rebalancing of a fixated lumbar hypolordosis (kyphosis) is very important to gain satisfactory results. To correct a misalignment vertebral column resection or pedicle subtraction osteotomies are favored, disregarding the relatively high complication rates. The aim of this study was to evaluate the efficiency and safety of a new modified transforaminal lumbar fusion technique as an alternative. METHODS: We conducted a retrospective review (06/2011-06/2015 ) of a prospective database at an University hospital...
2017: Patient Safety in Surgery
https://www.readbyqxmd.com/read/28687252/treatment-of-early-onset-scoliosis-with-a-hybrid-of-a-concave-magnetic-driver-mcgr-and-a-contralateral-passive-sliding-rod-construct-with-apical-control-preliminary-report-on-17-cases
#12
Simon T Skov, Sebastiaan P J Wijdicks, Cody Bünger, René M Castelein, Haisheng Li, Moyo C Kruyt
BACKGROUND CONTEXT: Magnetic controlled growth rods (MCGRs) are increasingly popular for surgical treatment of severe early-onset scoliosis (EOS), because they allow non-invasive extensions with good growth maintenance. We combined a MCGR with a contralateral passive sliding rod construct with apical control on the convex side to improve efficiency in terms of costs and 3D correction. PURPOSE: To investigate the feasibility, 3D correction, spinal growth and complications of the apical control MCGR/sliding rod hybrid...
July 4, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28683929/how-do-we-stand-variations-during-repeated-standing-phases-of-asymptomatic-subjects-and-low-back-pain-patients
#13
Hendrik Schmidt, Maxim Bashkuev, Jeronimo Weerts, Friedmar Graichen, Joern Altenscheidt, Christoph Maier, Sandra Reitmaier
An irreproducible standing posture can lead to mis-interpretation of radiological measurements, wrong diagnoses and possibly unnecessary treatment. This study aimed to evaluate the differences in lumbar lordosis and sacrum orientation in six repetitive upright standing postures of 353 asymptomatic subjects (including 332 non-athletes and 21 athletes - soccer players) and 83 low back pain (LBP) patients using a non-invasive back-shape measurement device. In the standing position, all investigated cohorts displayed a large inter-subject variability in sacrum orientation (∼40°) and lumbar lordosis (∼53°)...
June 21, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28677202/dreadd-induced-silencing-of-the-medial-amygdala-reduces-the-preference-for-male-pheromones-and-the-expression-of-lordosis-in-estrous-female-mice
#14
Elizabeth A McCarthy, Arman Maqsudlu, Matthew Bass, Sofia Georghiou, James A Cherry, Michael J Baum
Sexually naïve estrous female mice seek out male urinary pheromones; however, they initially display little receptive (lordosis) behavior in response to male mounts. Vomeronasal - accessory olfactory bulb inputs to the medial amygdala (Me) regulate courtship in female rodents. We used a reversible inhibitory chemogenetic technique (Designer Receptors Exclusively Activated by Designer Drugs; DREADDs) to assess the contribution of Me signaling to females' preference for male pheromones and improvement in receptivity normally seen with repeated testing...
July 5, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28676316/a-meta-analysis-comparing-alif-plif-tlif-and-llif
#15
REVIEW
Ian Teng, Julian Han, Kevin Phan, Ralph Mobbs
INTRODUCTION: Lumbar interbody fusions have been widely used to treat degenerative lumbar disease that fails to respond to conservative treatment. This procedure is divided according to its approach: anterior lumbar interbody fusion (ALIF), posterior lumbar interbody fusion (PLIF), transforaminal lumbar interbody fusion (TLIF) and lateral lumbar interbody fusion (LLIF). Each approach has its own theoretical advantages and disadvantages; however, there have been no studies that compared these...
July 1, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28673830/motion-preservation-following-total-lumbar-disc-replacement-at-the-lumbosacral-junction-a-prospective-long-term-clinical-and-radiographic-investigation
#16
Christoph Wuertinger, Raphael Dàgostino Annes, Wolfgang Hitzl, Christoph J Siepe
BACKGROUND CONTEXT: Total lumbar disc replacement (TDR) intends to avoid fusion related negative side effects by means of motion preservation. Despite of their widespread use, the adequate quality and quantity of motion as well as the correlation between radiographic data with the patient's clinical symptomatology remains to be established. Long-term data are lacking in particular. PURPOSE: To perform a clinical and radiographic long-term investigation following TDR with special emphasis on motion preservation assessment and to establish any potential correlation with patient reported outcome parameters...
June 30, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28667786/association-between-vertebral-cross-sectional-area-and-vertebral-wedging-in-children-and-adolescents-a-cross-sectional-analysis
#17
Tishya A L Wren, Skorn Ponrartana, Patricia C Aggabao, Ervin Poorghasamians, Vicente Gilsanz
A small vertebral cross-sectional area (CSA) imparts a mechanical disadvantage that escalates the risk for vertebral fractures in elderly populations. We examined whether a small vertebral CSA is also associated with a greater degree of vertebral wedging in children. Measurements of vertebral CSA, lumbar lordosis (LL) or thoracic scoliosis angle and vertebral wedging were obtained in 100 healthy adolescents (50 boys and 50 girls) and 25 girls with adolescent idiopathic scoliosis (AIS) using magnetic resonance imaging...
July 1, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28667278/anterior-cervical-spondylosis-surgical-interventions-are-associated-with-improved-lordosis-and-neurological-outcomes-at-latest-follow-up-a-meta-analysis
#18
Zengdong Meng, Jing Yu, Chong Luo, Xia Liu, Wei Jiang, Lehua Yu, Rongzhong Huang
Aim of this study was to evaluate the effect of cervical spondylosis surgery on cervical lordosis and to identify factors affecting the change by latest follow-up. Literature search was carried out in electronic databases and study selection followed a priori eligibility criteria. Random effects meta-analyses were performed to estimate effect size/s of change in lordosis after surgery (at latest follow-up) and metaregression analyses were performed to identify factors affecting this change. Nineteen studies (1845 patients; age 55...
June 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28660108/distal-fusion-level-selection-in-scheuermann-s-kyphosis-a-comparison-of-lordotic-disc-segment-versus-the-sagittal-stable-vertebrae
#19
Han Jo Kim, Venu Nemani, Oheneba Boachie-Adjei, Matthew E Cunningham, Justin A Iorio, Kevin O'Neill, Brian J Neuman, Lawrence G Lenke
STUDY DESIGN: Retrospective study. OBJECTIVE: To compare 2 methods of selecting the lowest instrumented vertebra (LIV) on the rates of revision surgery for distal junctional kyphosis (DJK) following treatment for Scheuermann's kyphosis (SK). METHODS: A retrospective review of patients who have undergone surgical treatment for SK was performed. Forty-four patients were divided into 2 groups based on intervention: Group 1 (n = 26) included patients who had an LIV distal to or at the sagittal stable vertebrae (SSV), and Group 2 (n = 18) included patients who had an LIV proximal to the SSV...
May 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28660104/use-of-bivector-traction-for-stabilization-of-the-head-and-maintenance-of-optimal-cervical-alignment-in-posterior-cervical-fusions
#20
Isaac O Karikari, David B Bumpass, Jeffrey Gum, Patrick Sugrue, Todd M Chapman, Aladine A Elsamadicy, K Daniel Riew
STUDY DESIGN: Retrospective analysis of consecutive case series. OBJECTIVE: To introduce a novel method of stabilizing the cranium using bivector traction in posterior cervical fusions. METHODS: A retrospective review of 50 consecutive patients undergoing instrumented posterior cervical arthrodesis was performed. All patients had at least 3 levels of subaxial fusion using the bivector traction apparatus. Patients' demographic data was recorded for the following: pre- and postoperative cervical lordosis, pre- and postoperative cervical sagittal vertical alignment (cSVA), and intraoperative complications from pin placements...
May 2017: Global Spine Journal
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