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https://www.readbyqxmd.com/read/28723934/the-relationship-between-adiposity-and-bone-density-in-u-s-children-and-adolescents
#1
Cecilia Gállego Suárez, Benjamin H Singer, Achamyeleh Gebremariam, Joyce M Lee, Kanakadurga Singer
OBJECTIVE: In adults, obesity has been associated with several health outcomes including increased bone density. Our objective was to evaluate the association between percent body fat and fat mass with bone mineral density (BMD) in a nationally representative population of children and adolescents. STUDY DESIGN: A total of 8,348 participants 8-18 years of age from the National Health and Nutrition Examination Survey (NHANES) 1999-2006 had whole body DXA scans performed...
2017: PloS One
https://www.readbyqxmd.com/read/28723873/total-disc-arthroplasty-and-anterior-interbody-fusion-in-the-lumbar-spine-have-relatively-few-differences-in-readmission-and-short-term-adverse-events
#2
Blake N Shultz, Alexander T Wilson, Nathaniel T Ondeck, Patawut Bovonratwet, Ryan P McLynn, Jonathan J Cui, Jonathan N Grauer
STUDY DESIGN: Retrospective matched cohort study of prospectively collected data. OBJECTIVE: To compare rates of adverse events and readmission between lumbar total disc arthroplasty (TDA) and anterior lumbar interbody fusion (ALIF) using the American College of Surgeons National Surgical Quality Improvement Program (NSQIP) database. SUMMARY OF BACKGROUND DATA: TDA and ALIF may be considered for similar degenerative indications. However, there have been few large-cohort comparison studies of short-term clinical outcomes for these procedures...
July 18, 2017: Spine
https://www.readbyqxmd.com/read/28723774/relationship-between-first-dorsal-sacral-foramen-and-lumbar-facet-joint-connecting-line-in-south-korea-populations-retrospective-study
#3
Young Deog Cha, Jae Kyu Choi, Chun Woo Yang, Hyun Kyoung Lim, Gyoung A Heo, Byung-Gun Kim
The first sacral nerve root block (S1 nerve root block) is a practical procedure for patients with radiating lower back pain. In general, S1 nerve root block is performed under x-ray fluoroscopy. It is necessary to adjust the position of the patient and angle of fluoroscopy to properly visualize the first dorsal sacral foramen (dorsal S1 foramen). The purpose of this study was to analyze the location of dorsal S1 foramen and lumbar facet joint in S1 nerve root block.A total of 388 patients undergoing x-ray fluoroscopy-guided S1 nerve root block in the prone position were examined...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28723772/anatomic-investigation-of-lumbar-transforaminal-fenestration-approach-and-its-clinical-application-in-far-lateral-disc-herniation
#4
Baoshan Xu, Haiwei Xu, Jean Destandau, Xinlong Ma, Jian He, Qun Xia, Ning Ji, Qiang Yang, Yue Liu, Hongfeng Jiang
Treating lumbar disease at the intervertebal foramina is controversial because we lack an approach providing sufficient exposure and preserving spinal stability. The primary objective of this study was to investigate the feasibility of the transforaminal fenestration (TFF) approach for treating lumbar disease involving the intervertebal foramina.In the anatomic study of 30 adult cadaveric lumbar spine specimens, the TFF approach was used from L1 to S1. The scope of resection was measured manually and on 3D CT images...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28723757/comprehensive-comparing-percutaneous-endoscopic-lumbar-discectomy-with-posterior-lumbar-internal-fixation-for-treatment-of-adjacent-segment-lumbar-disc-prolapse-with-stable-retrolisthesis-a-retrospective-case-control-study
#5
Yapeng Sun, Wei Zhang, Suhui Qie, Nan Zhang, Wenyuan Ding, Yong Shen
The study was to comprehensively compare the postoperative outcome and imaging parameter characters in a short/middle period between the percutaneous endoscopic lumbar discectomy (PELD) and the internal fixation of bone graft fusion (the most common form is posterior lumbar interbody fusion [PLIF]) for the treatment of adjacent segment lumbar disc prolapse with stable retrolisthesis after a previous lumbar internal fixation surgery.In this retrospective case-control study, we collected the medical records from 11 patients who received PELD operation (defined as PELD group) for and from 13 patients who received the internal fixation of bone graft fusion of lumbar posterior vertebral lamina decompression (defined as control group) for the treatment of the lumbar disc prolapse combined with stable retrolisthesis at Department of Spine Surgery, the Third Hospital of Hebei Medical University (Shijiazhuang, China) from May 2010 to December 2015...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28722766/comparative-analysis-of-the-radiology-of-osteoporotic-vertebral-fractures-in-women-and-men-cross-sectional-and-longitudinal-observations-from-the-canadian-multicentre-osteoporosis-study-camos
#6
Brian C Lentle, Claudie Berger, Linda Probyn, Jacques P Brown, Lisa Langsetmo, Ben Fine, Kevin Lian, Arvind K Shergill, Jacques Trollip, Stuart Jackson, William D Leslie, Jerilynn C Prior, Stephanie M Kaiser, David A Hanley, Jonathan D Adachi, Tanveer Towheed, K Shawn Davison, Angela M Cheung, David Goltzman
We compared two methods for osteoporotic vertebral fracture (VF) assessment on lateral spine radiographs, the Genant semi-quantitative (GSQ) technique and a modified algorithm-based qualitative (mABQ) approach. We evaluated 4465 women and 1771 men > 50 years old from the Canadian Multicentre Osteoporosis Study with available X-ray images at baseline. Observer agreement was lowest for grade 1 VFs determined by GSQ. Among physician readers, agreement was greater for VFs diagnosed by mABQ [ranging from 0...
July 19, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28721002/mobile-schwannomas-of-lumbar-spine-a-diagnostic-dilemma
#7
Ajay Kothari, Navdeep Singh, Rashid Anjum
Mobile Schwannoma is a very rare entity and is reported sparsely in literature, with most of them occurring in lumbar spine region. We present a case of seventy-year-old male patient who had pain in lower back radiating to ipsilateral thigh. A diagnosis of migratory tumour was made based on findings of plain and contrast MRI preoperatively. We did a two level laminectomy and tumour excision. In this report, we intend to discuss various likely causes of tumour migration and various diagnostic methods to tackle this surgical dilemma, we have also attempted to review the sparse literature available till date on migratory lumber schwannoma...
April 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28720994/early-migration-of-bone-graft-causing-sigmoid-colon-perforation-after-trans-foraminal-lumbar-interbody-fusion
#8
Bhavuk Garg, Amit Singla, Sahil Batra, Senthil Kumar
BACKGROUND: Tran foraminal lumbar interbody fusion (TLIF) is a well accepted and standard technique of achieving spinal fusion using pedicle screws, cage and bone graft. We are presenting here a case of L4-L5 lumbar canal stenosis managed with TLIF that presented with sigmoid colon perforation due to bone graft migration 4 days after surgery. CASE REPORT: A 35 years old female underwent open TLIF (from right side) with decompression for L4-L5 lumbar canal stenosis...
April 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28720993/inserting-pedicle-screws-in-lumbar-spondylolisthesis-the-easy-bone-conserving-way
#9
Hitesh Lal, Lalit Kumar, Ramesh Kumar, Tankeshwar Boruah, Pankaj Kumar Jindal, Vinod Kumar Sabharwal
BACKGROUND: Pedicle screw fixation in high grade lumbar listhetic vertebral body has been nightmare for Orthopaedic and spine surgeons. This is because of abnormally positioned listhetic pedicles and non-visualization of pedicle in conventional image intensifier (C-Arm). This results into increased surgical time, more blood loss, radiation exposure and more chances of infection. To overcome this problem, we have devised a new Technique of putting of pedicle screw fixation in listhetic vertebrae...
April 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28720522/patients-with-non-ambulatory-cerebral-palsy-have-higher-sclerostin-levels-and-lower-bone-mineral-density-than-patients-with-ambulatory-cerebral-palsy
#10
Yoon-Kyum Shin, Young Kwon Yoon, Kyung Bae Chung, Yumie Rhee, Sung-Rae Cho
Bone loss is a serious clinical issue in patients with cerebral palsy (CP). Sclerostin has garnered interest as a key mechanosensor in osteocytes, leading to considerations of the therapeutic utilization of anti-sclerostin medications. This study was undertaken to determine associations among mechanical unloading, sclerostin levels, and bone imbalance in patients with CP. A total of 28 patients with CP participated in this cross-sectional study. The following measurements were taken: anthropometrics, clinical diagnosis of CP subtype and ambulatory status, bone mineral density (BMD) z-scores at the lumbar spine and hip, and blood biochemical markers, including sclerostin, parathyroid hormone (PTH), osteocalcin, C-terminal telopeptide, 25-hydroxyvitamin D, 1,25-dihydroxyvitamin D, creatinine, calcium, and phosphorus...
July 15, 2017: Bone
https://www.readbyqxmd.com/read/28719551/annulus-fibrosus-repair-using-high-density-collagen-gel-an-in-vivo-ovine-model
#11
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/28719446/tophaceous-gout-of-the-lumbar-spine-mimicking-malignancy-on-fdg-pet-ct
#12
Qian Zhao, Aisheng Dong, Yushu Bai, Yang Wang, Changjing Zuo
A 46-year-old man with over a 10-year history of gout complained of progressive bilateral buttock pain with numbness of legs for 4 months. Serum uric acid level was elevated. Lumbar radiographs showed decreased density of the bilateral L4-L5 facet joints. CT showed lytic lesions of the facet joints with hyperdense periarticular lesions. Enhanced MRI showed marked enhancement of these lesions. FDG PET/CT showed avid FDG uptake of the bony and periarticular lesions with SUVmax of 16.8. A decompressive posterior lumbar laminectomy with periarticular lesion resection was performed...
July 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28719143/osteoporotic-vertebral-fracture-prevalence-varies-widely-between-radiological-assessment-methods-the-rotterdam-study
#13
L Oei, F Koromani, S J Breda, J T Schousboe, E M Clark, Jbj van Meurs, M A Ikram, J H Waarsing, Fja van Rooij, M C Zillikens, G P Krestin, Ehg Oei, F Rivadeneira
BACKGROUND: 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 the two most commonly applied assessment methods. METHODS: The quantitative morphometry (QM) 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 non- fracture 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/28718697/pain-drawings-predict-outcome-of-surgical-treatment-for-degenerative-disc-disease-in-the-cervical-spine
#14
Anna MacDowall, Yohan Robinson, Martin Skeppholm, Claes Olerud
INTRODUCTION: Pain drawings have been frequently used in the preoperative evaluation of spine patients. For lumbar conditions comprehensive research has established both the reliability and predictive value, but for the cervical spine most of this knowledge is lacking. The aims of this study were to validate pain drawings for the cervical spine, and to investigate the predictive value for treatment outcome of four different evaluation methods. METHODS: We carried out a post hoc analysis of a randomized controlled trial, comparing cervical disc replacement to fusion for radiculopathy related to degenerative disc disease...
July 18, 2017: Upsala Journal of Medical Sciences
https://www.readbyqxmd.com/read/28717599/improving-the-trajectory-of-transpedicular-transdiscal-lumbar-screw-fixation-with-a-computer-assisted-3d-printed-custom-drill-guide
#15
Zhen-Xuan Shao, Jian-Shun Wang, Zhong-Ke Lin, Wen-Fei Ni, Xiang-Yang Wang, Ai-Min Wu
Transpedicular transdiscal screw fixation is an alternative technique used in lumbar spine fixation; however, it requires an accurate screw trajectory. The aim of this study is to design a novel 3D-printed custom drill guide and investigate its accuracy to guide the trajectory of transpedicular transdiscal (TPTD) lumbar screw fixation. Dicom images of thirty lumbar functional segment units (FSU, two segments) of L1-L4 were acquired from the PACS system in our hospital (patients who underwent a CT scan for other abdomen diseases and had normal spine anatomy) and imported into reverse design software for three-dimensional reconstructions...
2017: PeerJ
https://www.readbyqxmd.com/read/28717058/lumbosacral-transitional-vertebrae-cause-spinal-level-misconception-in-surgeries-for-degenerative-lumbar-spine-disorders
#16
Tomowaki Nakagawa, Ko Hashimoto, Takumi Tsubakino, Takeshi Hoshikawa, Takashi Inawashiro, Yasuhisa Tanaka
Human lumbar spine usually consists of five vertebrae; however, some individuals have vertebral anomalies with four or six lumbar vertebrae because of sacralized fifth lumbar vertebra (L5 sacralization) or lumbarized first sacral vertebra (S1 lumbarization), respectively. These vertebral anomalies are called lumbosacral transitional vertebra (LSTV). Although LSTV is an asymptomatic anomaly, it is known to cause misconception in spinal counts and in spinal level at lumbar spinal surgery. The purpose of this study is to evaluate how LSTV affects the diagnosis and surgeries in lumbar spine disorders...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28716466/chronic-low-back-pain-patients-walk-with-locally-altered-spinal-kinematics
#17
Guillaume Christe, François Kade, Brigitte M Jolles, Julien Favre
Various studies have reported alterations of spinal kinematics in patients with chronic low back pain (CLBP) during gait. However, while recent findings stressed the importance of multi-segment analysis, most of prior gait studies modelled the lumbar spine as one segment, when it was not the entire trunk that was considered as a single segment. Therefore, there is a need for comprehensive multi-segment research that could improve our understanding of CLBP pathomechanism and thus possibly contribute to better care for CLBP...
July 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28716031/a-rare-case-of-intradural-and-extramedullary-epidermoid-cyst-after-repetitive-epidural-anesthesia-case-report-and-review-of-the-literature
#18
Haruki Funao, Norihiro Isogai, Kenshi Daimon, Yuichiro Mima, Hitoshi Sugiura, Takahiro Koyanagi, Masaya Nakamura, Morio Matsumoto, Ken Ishii
BACKGROUND: Spinal epidermoid cysts are benign tumors, which are rarely seen as an intradural extramedullary spinal cord tumor in the conus medullaris region. Acquired spinal epidermoid cysts are mostly caused by iatrogenic procedures, such as lumbar puncture, and the majority of acquired spinal epidermoid cysts have been reported below the L1 level, because lumbar puncture is usually performed around the iliac crest. Here, we report an extremely rare case of an epidermoid cyst that occurred as an intradural and extramedullary spinal cord tumor attached to the conus medullaris after repetitive epidural anesthesia...
July 17, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28715798/bone-mineral-density-in-women-living-with-complete-androgen-insensitivity-syndrome-and-intact-testes-or-removed-gonads
#19
Silvano Bertelloni, Maria C Meriggiola, Elenora Dati, Antonio Balsamo, Giampiero I Baroncelli
Complete androgen insensitivity syndrome (CAIS) is due to complete androgen resistance in androgen-dependent tissues. Since androgens are involved in growth, development, and mass maintenance of the skeleton, bone health may be a relevant clinical issue for improving quality of life of women living with CAIS. Bone mineral density (BMD) in women with CAIS and intact gonads has been reported in a normal range, although exceptions are known showing a low BMD mainly at the lumbar level. In women with CAIS and removed gonads, BMD is usually reduced at both the lumbar spine and femoral neck...
July 18, 2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28715299/test-retest-reliability-of-measurements-of-abdominal-and-multifidus-muscles-using-ultrasound-imaging-in-adults-aged-50-79-years
#20
W A Cuellar, L Blizzard, M L Callisaya, J A Hides, G Jones, C Ding, T M Winzenberg
Test-retest reliability of the combined process of ultrasound imaging (USI) and image measurement of thickness of abdominal and upper lumbar multifidus (MF) muscles and MF cross sectional area (CSA) of older adults has not been established. Imaging muscles of older adults can be challenging due to age-related changes in the spine and skeletal muscle so establishing test-retest reliability in this population is important. This study aimed to evaluate test-retest reliability of USI of abdominal and MF muscle thickness and MF CSA for adults aged 50-79 years...
April 2017: Musculoskeletal Science & Practice
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