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https://www.readbyqxmd.com/read/29329787/outcomes-of-multisegmental-transforaminal-enlarged-decompression-plus-posterior-pedicle-screw-fixation-for-multilevel-lumbar-spinal-canal-stenosis-associated-with-lumbar-instability
#1
Chao Sun, Wei Ji Tian, Hui Xin Liu, Ping Guo Guan
PURPOSE: The aim of this study was to evaluate the clinical and radiologic results of multisegmental transforaminal enlarged decompression (TED) plus posterior pedicle screw fixation in the treatment of multilevel lumbar spinal canal stenosis (LSCS) with lumbar instability (MLSCSI). METHODS: 113 patients with MLSCSI underwent surgery were recruited in this study. All patients were suffering from symptoms typical of degenerative LSCS and treated with either TED plus fusion (TEDF group) or conventional laminectomy plus fusion (CLF group)...
January 9, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29323806/spine-and-spinal-cord-injuries-after-falls-from-tree-stands-during-the-wisconsin-deer-hunting-season
#2
Kimberly Hamilton, Brandon Rocque, Nathaniel Brooks
BACKGROUND: Deer hunting is popular in much of the United States. In Wisconsin, use of tree stands for hunting is common. Spine surgeons at a Level 1 Trauma Center observed a high incidence of spine and spinal cord injury due to falls from tree stands while hunting. This study's purpose is to systematically characterize and classify those injuries. METHODS: We reviewed the University of Wisconsin Hospital and Clinics' trauma database for tree stand-related injuries from 1999 to 2013...
November 2017: WMJ: Official Publication of the State Medical Society of Wisconsin
https://www.readbyqxmd.com/read/29279751/thoracolumbar-vertebral-injuries-with-neurological-deficit-treated-with-posterior-decompression-short-segment-pedicle-screw-fixation-and-interlaminar-fusion
#3
Sachin Kumar, Satish Kumar, Rajender Kumar Arya, Avinash Kumar
Study Design: Prospective clinical study. Purpose: The purpose of this study was to evaluate the effect of interlaminar fusion and short segment pedicle screw fixation on thoracolumbar vertebral injuries for preventing pain and post-traumatic kyphosis. Overview of Literature: The treatment of thoracolumbar injuries continues to be one of the most controversial areas in spine care. The main aim of surgical treatment is to decompress the spinal cord or nerve roots, realign the spine, and correct or prevent post-traumatic kyphosis...
December 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/29233242/preflight-in-flight-and-postflight-imaging-of-the-cervical-and-lumbar-spine-in-astronauts
#4
Michael F Harrison, Kathleen M Garcia, Ashot E Sargsyan, Douglas Ebert, Roy F Riascos-Castaneda, Scott A Dulchavsky
BACKGROUND: Back pain is a common complaint during spaceflight that is commonly attributed to intervertebral disc swelling in microgravity. Ultrasound (US) represents the only imaging modality on the International Space Station (ISS) to assess its etiology. The present study investigated: 1) The agreement and correlation of spinal US assessments as compared to results of pre- and postflight MRI studies; and 2) the trend in intervertebral disc characteristics over the course of spaceflight to ISS...
January 1, 2018: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29160423/comparison-of-short-segment-monoaxial-and-polyaxial-pedicle-screw-fixation-combined-with-intermediate-screws-in-traumatic-thoracolumbar-fractures-a-finite-element-study-and-clinical-radiographic-review
#5
Hongwei Wang, Yiwen Zhao, Zhongjun Mo, Jianda Han, Yu Chen, Hailong Yu, Qi Wang, Jun Liu, Changqing Li, Yue Zhou, Liangbi Xiang
OBJECTIVES: No studies have compared monoaxial and polyaxial pedicle screws with regard to the von Mises stress of the instrumentation, intradiscal pressures of the adjacent segment and adjacent segment degeneration. METHODS: Short-segment monoaxial/polyaxial pedicle screw fixation techniques were compared using finite element methods, and the redistributed T11-L1 segment range of motion, largest maximal von Mises stress of the instrumentation, and intradiscal pressures of the adjacent segment under displacement loading were evaluated...
October 2017: Clinics
https://www.readbyqxmd.com/read/29112101/thoracolumbar-intervertebral-disc-area-morphometry-in-elderly-chinese-men-and-women-radiographic-quantifications-at-baseline-and-changes-at-year-4-follow-up
#6
Jùn-Qīng Wáng, Zoltán Káplár, Min Deng, James F Griffith, Jason C S Leung, Anthony Wl Kwok, Timothy Kwok, Ping Chung Leung, Yì Xiáng J Wáng
STUDY DESIGN: A population-based radiographic study with longitudinal follow-up. OBJECTIVE: To develop a quantitative index for lumbar disc space narrowing (DSN) evaluation in elderly subjects; to determine how DSN in the elderly is influenced by osteoporosis and gender. SUMMARY OF BACKGROUND DATA: There is paucity of research on quantitative classification of lumbar DSN based on disc areal morphometry. METHODS: With the database of Osteoporotic Fractures in Men (Hong Kong) and Osteoporotic Fractures in Women (Hong Kong) Studies and those who attended the year-4 follow-up (n = 1519 for men and n = 1546 for women), data of 491 women and 592 men were randomly selected...
November 3, 2017: Spine
https://www.readbyqxmd.com/read/29063365/intervertebral-disc-degeneration-an-experimental-and-numerical-study-using-a-rabbit-model
#7
Andrea Calvo-Echenique, José Cegoñino, Laura Correa-Martín, Luciano Bances, Amaya Pérez-Del Palomar
Animal models have been extensively used for the study of degenerative diseases and evaluation of new therapies to stop or even reverse the disease progression. The aim of this study is to reproduce lumbar intervertebral disc degeneration in a rabbit model by performing a percutaneous annular puncture at L4L5 level. The effect of this damage on the spine behaviour was analysed combining three different techniques: imaging processing, mechanical testing and computational modelling. Twenty New Zealand white rabbits were divided into control and experimental groups and followed up during 6 months...
October 23, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29057346/corpectomy-and-expandable-cage-replacement-versus-third-generation-percutaneous-augmentation-system-in-case-of-vertebra-plana-rationale-and-recommendations
#8
Daniele Vanni, Andrea Pantalone, Vincenzo Magliani, Vincenzo Salini, Pedro Berjano
BACKGROUND: To evaluate the role of third generation percutaneous vertebral augmentation systems (Spine Jack(®)) as alternative to the corpectomies and expandable cages replacement (X-Core(®) Adjustable VBR System) in the treatment of vertebra plana (VP) as complication of the osteoporosis vertebral fracture (OVF). METHODS: Spine Jack(®) is a new device for mechanical kyphoplasty (MK). It is a titanium implant designed to restore the height of the vertebral body in OVF, primary or secondary bone tumors, or traumatic fractures...
September 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29019717/adding-vfa-to-dxa-identifies-fracture-risk-in-a-way-not-duplicated-by-other-measures
#9
Jay P Ginther, Ann W Ginther, Lisa D Brodersen
OBJECTIVE: Published studies have demonstrated that adding Vertebral Fracture Assessment (VFA) to Dual-energy X-ray Absorptiometry (DXA) identifies more patients with increased fracture risk than DXA alone. But who needs VFA? This study attempts to determine if some test, other than VFA, could duplicate the additional information obtained by performing VFA on ALL first-time patients. This study looked at FRAX, Height Loss, Age, documented back pain, and Non-vertebral Fragility Fractures (FFs)...
October 11, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28984540/evolution-of-the-postoperative-sagittal-spinal-profile-in-early-onset-scoliosis-is-there-a-difference-between-rib-based-and-spine-based-growth-friendly-instrumentation
#10
Zhonghui Chen, Song Li, Yong Qiu, Zezhang Zhu, Xi Chen, Liang Xu, Xu Sun
OBJECTIVE Although the vertical expandable prosthetic titanium rib (VEPTR) and growing rod instrumentation (GRI) encourage spinal growth via regular lengthening, they can create different results because of their different fixation patterns and mechanisms in correcting scoliosis. Previous studies have focused comparisons on coronal plane deformity with minimal attention to the sagittal profile. In this retrospective study, the authors aimed to compare the evolution of the sagittal spinal profile in early-onset scoliosis (EOS) treated with VEPTR versus GRI...
October 6, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28964824/spine-kinematics-exhibited-during-the-stop-jump-by-physically-active-individuals-with-adolescent-idiopathic-scoliosis-and-spinal-fusion
#11
Rumit Singh Kakar, Yumeng Li, Cathleen N Brown, Seock-Ho Kim, Timothy S Oswald, Kathy J Simpson
BACKGROUND CONTEXT: Individuals with adolescent idiopathic scoliosis post spinal fusion often return to exercise and sport. However, the movements that individuals with spinal fusion for adolescent idiopathic scoliosis (SF-AIS) use to compensate for the loss of spinal flexibility during high-effort tasks are not known. PURPOSE: The objective of this study was to compare the spinal kinematics of the trunk segments displayed during the stop-jump, a maximal effort task, between SF-AIS and healthy control groups...
September 28, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28960820/minimally-invasive-transforaminal-lumbar-interbody-fusion-and-unilateral-fixation-for-degenerative-lumbar-disease
#12
Hui-Wang Wang, Yong-Cheng Hu, Zhan-Yong Wu, Hua-Rong Wu, Chun-Fu Wu, Lian-Suo Zhang, Wei-Kun Xu, Hui-Long Fan, Jin-Sheng Cai, Jian-Qing Ma
OBJECTIVE: To evaluate the clinical effect of the minimally invasive transforaminal lumbar interbody fusion combined with posterolateral fusion and unilateral fixation using a tubular retractor in the management of degenerative lumbar disease. METHODS: A retrospective analysis was conducted to analyze the clinical outcome of 58 degenerative lumbar disease patients who were treated with minimally invasive transforaminal lumbar interbody fusion combined with posterolateral fusion and unilateral fixation during December 2012 to January 2015...
August 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28892125/novel-spondyloepimetaphyseal-dysplasia-due-to-ufsp2-gene-mutation
#13
M Di Rocco, M Rusmini, F Caroli, A Madeo, M Bertamino, G Marre-Brunenghi, I Ceccherini
Beukes Hip Dysplasia is an autosomal dominant disease which has to date been described only in a large South African family of Dutch origin. The patients presented with progressive epiphyseal dysplasia limited to femoral capital epiphysis and their height was not significantly reduced. A unique variant of the ubiquitin-fold modifier 1 (Ufm1)-specific peptidase 2 (UFSP2) gene (c.868T>C) has been reported in all individuals from Beukes family with clinical and radiological diagnosis of Beukes Hip Dysplasia...
September 11, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28822738/a-study-of-the-damage-behaviour-of-porcine-intervertebral-discs-in-a-bioreactor-environment
#14
M Azarnoosh, M Stoffel, B Markert
The intervertebral discs are cartilaginous, articulating structures that lie between vertebral bodies, allowing flexibility, transmission, modification, and also distribution of the forces to the spinal column. Disc degeneration is characterised by progressive loss of disc height and exaggerated radial bulging. Therefore, the spine becomes shorter, stiffer, and less mobile. In the last several decades, there is a strong need for a tissue engineering strategy that alleviates pain and restores spine function by directly addressing the underlying biological causes of disc degeneration...
August 9, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28816975/incidence-and-risk-factors-of-posterior-cage-migration-following-decompression-and-instrumented-fusion-for-degenerative-lumbar-disorders
#15
Hua Li, Hui Wang, Yanbo Zhu, Wenyuan Ding, Qian Wang
The aim of this study was to explore the incidence and risk factors for posterior cage migration (PCM) following decompression and instrumented fusion for degenerative lumbar disorders, and hope to provide references in decision making and surgical planning for spine surgeons.By retrieving the medical records from January 2011 to December 2015, 286 patients were retrospectively reviewed. According to the occurrence of PCM, patients were divided into 2 groups: PCM group and non-PCM (N-PCM). To investigate risk values for PCM, 3 categorized factors were analyzed statistically: patient characteristics: age, sex, body mass index, bone mineral density, duration of disease, diagnosis, comorbidity, smoke; surgical variables: surgery time, blood loss, surgical strategy, cage morphology, cage size, surgical segment, fusion number, source of bone graft, surgeon experience; radiographic parameters: preoperative lumbar lordosis, correction of lumbar lordosis, preoperative lumbar mobility, preoperative intervertebral height, change of intervertebral height, Modic changes, paraspinal muscle degeneration...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28781229/height-loss-was-associated-with-osteoporosis-in-korean-elderly-men-not-in-women-the-korea-national-health-and-nutrition-examination-survey-2008-2010
#16
Kyung-Sik Ahn, Chang Ho Kang, Sung Bum Cho, Kyung-Hwan Cho, Kyung-Do Han, Yong-Gyu Park, Yang-Hyun Kim
The degree of height loss varies among individuals, and excessive height loss can be a vertebral fracture or bone loss manifestation. The objective of this study was to examine the relationships between height loss and bone mineral density (BMD) and to assess the prevalence of osteoporosis according to the height loss quartiles. Data from the Korea National Health and Nutrition Examination Survey were analyzed. A total of 2799 participants more than 60 years old were included and subdivided into quartiles according to height loss (Q1-Q4)...
August 3, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28778055/the-effect-of-the-ketogenic-diet-on-the-developing-skeleton
#17
Peter J Simm, Jillian Bicknell-Royle, Jock Lawrie, Judy Nation, Kellie Draffin, Karen G Stewart, Fergus J Cameron, Ingrid E Scheffer, Mark T Mackay
The ketogenic diet (KD) is a medically supervised, high fat, low carbohydrate and restricted protein diet which has been used successfully in patients with refractory epilepsy. Only one published report has explored its effect on the skeleton. We postulated that the KD impairs skeletal health parameters in patients on the KD. Patients commenced on the KD were enrolled in a prospective, longitudinal study, with monitoring of Dual-energy X-ray absorptiometry (DXA) derived bone parameters including bone mineral content and density (BMD)...
October 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28719551/annulus-fibrosus-repair-using-high-density-collagen-gel-an-in-vivo-ovine-model
#18
Brenton Pennicooke, Ibrahim Hussain, Connor Berlin, Stephen R Sloan, Brandon Borde, Yu Moriguchi, Gernot Lang, Rodrigo Navarro-Ramirez, Jonathan Cheetham, Lawrence J Bonassar, Roger Härtl
STUDY DESIGN: Ovine in vivo study. OBJECTIVE: To perform lateral approach lumbar surgery in an ovine model to administer an injectable riboflavin (RF) cross-linked high-density collagen (HDC) gel and to assess its ability to mitigate intervertebral disc (IVD) degeneration after induced annulus fibrosus (AF) injury. SUMMARY OF BACKGROUND DATA: Biological-based injectable gels have shown efficacy in restoring biomechanical, radiographic, and histological parameters in IVD-injured animal models...
July 17, 2017: Spine
https://www.readbyqxmd.com/read/28719143/osteoporotic-vertebral-fracture-prevalence-varies-widely-between-qualitative-and-quantitative-radiological-assessment-methods-the-rotterdam-study
#19
Ling Oei, Fjorda Koromani, Stephan J Breda, John T Schousboe, Emma M Clark, Joyce Bj van Meurs, M Arfan Ikram, Jan H Waarsing, Frank Ja van Rooij, Maria C Zillikens, Gabriel P Krestin, Edwin Hg Oei, Fernando Rivadeneira
Accurate diagnosis of vertebral osteoporotic fractures is crucial for the identification of individuals at high risk of future fractures. Different methods for radiological assessment of vertebral fractures exist, but a gold standard is lacking. The aim of our study was to estimate statistical measures of agreement and prevalence of osteoporotic vertebral fractures in the population-based Rotterdam Study, across two assessment methods. The quantitative morphometry assisted by SpineAnalyzer® (QM SA) method evaluates vertebral height loss that affects vertebral shape whereas the algorithm-based qualitative (ABQ) method judges endplate integrity and includes guidelines for the differentiation of vertebral fracture and nonfracture deformities...
July 18, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28694597/management-of-cervical-monoradiculopathy-due-to-prolapsed-intervertebral-disc-an-institutional-experience
#20
Amresh S Bhaganagare, S A Nagesh, B G Shrihari, Vikas Naik, M N Nagarjun, Balaji S Pai
BACKGROUND: Cervical radiculopathy is the common clinical entity, often caused by "wear and tear" changes that occur in the spine. In the younger population, cervical radiculopathy is a result of a disc herniation or an acute injury causing foraminal impingement of an exiting nerve, whereas in the older individuals, it is due to foraminal narrowing from osteophyte formation, decreased disc height, and degenerative changes of the uncovertebral joints anteriorly and of the facet joints posteriorly...
April 2017: Journal of Craniovertebral Junction and Spine
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