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https://www.readbyqxmd.com/read/28506798/evaluation-of-a-semi-automated-software-program-for-the-identification-of-vertebral-fractures-in-children
#1
F F Alqahtani, F Messina, E Kruger, H Gill, M Ellis, I Lang, P Broadley, A C Offiah
AIM: To assess observer reliability and diagnostic accuracy in children, of a semi-automated six-point technique developed for vertebral fracture (VF) diagnosis in adults, which records percentage loss of vertebral body height. MATERIALS AND METHODS: Using a semi-automated software program, five observers independently assessed T4 to L4 from the lateral spine radiographs of 137 children and adolescents for VF. A previous consensus read by three paediatric radiologists using a simplified algorithm-based qualitative technique (i...
May 12, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28505960/normal-aging-of-the-lumbar-spine-in-women
#2
Hulya Kurtul Yildiz, Elif Evrim Ekin
BACKGROUND: Lumbar lordosis is required for bipedalism. OBJECTIVES: To investigate age-related changes in lumbar lordosis and to clarify the relationships between lumbar lordosis and vertebral wedging and disc degeneration. METHODS: A total of 300 women were included in this retrospective study, 50 in each of six age groups (20-, 30-, 40-, 50-, 60- and 70-year-olds). Patients with vertebral collapse, instable fracture or disc sequestration were excluded...
May 5, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28501720/characterization-and-restoration-of-degenerated-ivd-function-with-an-injectable-in-situ-gelling-alginate-hydrogel-an-in-vitro-and-ex-vivo-study
#3
Emily A Growney Kalaf, Meghana Pendyala, J Gary Bledsoe, Scott A Sell
Intervertebral disc (IVD) degeneration is a naturally, irreparable process that causes loss in IVD hydration, cellularity, and, mechanical stability. Invasive surgical attempts to ease back pain and, radiculopathy have shown to cause increased degeneration along the rest, of the spine. Due to its highly tunable mechanical and degradation, properties, alginate is a viable option for a less-invasive injectable, repair for IVD degeneration. This study centers on the characterization, of in situ gelling alginate and subsequent injection into enzymatically, degraded motion segments...
May 7, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28454529/association-of-vertebral-compression-fractures-with-physical-performance-measures-among-community-dwelling-japanese-women-aged-40%C3%A2-years-and-older
#4
Kazuhiko Arima, Yasuyo Abe, Takayuki Nishimura, Takuhiro Okabe, Yoshihito Tomita, Satoshi Mizukami, Mitsuo Kanagae, Kiyoshi Aoyagi
BACKGROUND: Numerous reported studies have shown that vertebral compression fractures are associated with impaired function or disability; however, few examined their association with objective measures of physical performance or functioning. METHODS: We examined the association of vertebral compression fractures with physical performance measures in 556 Japanese women aged 40-89 years. Lateral spine radiographs were obtained and radiographic vertebral compression fractures were assessed by quantitative morphometry, defined as vertebral heights more than 3 SD below the normal mean...
April 28, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28451858/biomechanical-in-vitro-comparison-of-radiofrequency-kyphoplasty-and-balloon-kyphoplasty
#5
Gerhard Achatz, Hans-Joachim Riesner, Benedikt Friemert, Raimund Lechner, Nicolas Graf, Hans-Joachim Wilke
PURPOSE: Balloon kyphoplasty (BK) has emerged as a popular method for treating osteoporosis vertebral compression fractures (OVCFs). In response to several shortcomings of BK, alternative methods have been introduced, among which is radiofrequency kyphoplasty (RFK). Biomechanical comparisons of BK and RFK are very sparse. The purpose of this study was to perform a biomechanical study in which BK and RFK are compared. METHODS: Each of the two study groups comprised six specimens prepared from two functional spinal units (FSUs) cut from fresh-frozen cadaveric spines (3 of T9-T11 and 3 of T12-L2)...
April 27, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28416835/-polymethylmethacrylate-augmentation-of-bone-cement-injectable-cannulated-pedicle-screws-was-used-to-treat-degenerative-lumbar-scoliosis-with-osteoporosis
#6
H L Sun, C D Li, X W Li, X D Yi, H Liu, H L Lu, H Li, Z R Yu, Y Wang
OBJECTIVE: To describe the application of polymethylmethacrylate (PMMA) augmentation of cement-injectable cannulated pedicle screws for the treatment of degenerative lumbar scoliosis with osteoporosis. METHODS: Retrospective cohort study was used to compare cement injectable cannulated pedicle screws (CICPs) group with PMMA augmentation and control group with traditional method in the correction surgery for Lenke-silva level III and level IV degenerative scoliosis cases with osteoporosis...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28398504/degenerative-inter-vertebral-disc-disease-osteochondrosis-intervertebralis-in-europe-prevalence-geographic-variation-and-radiological-correlates-in-men-and-women-aged-50-and-over
#7
Gabriele Armbrecht, Dieter Felsenberg, Melanie Ganswindt, Mark Lunt, Stephen K Kaptoge, Klaus Abendroth, Antonio Aroso Dias, Ashok K Bhalla, Jorge Cannata Andia, Jan Dequeker, Richard Eastell, Krzysztof Hoszowski, George Lyritis, Pavol Masaryk, Joyce van Meurs, Tomasz Miazgowski, Ranuccio Nuti, Gyula Poór, Inga Redlund-Johnell, David M Reid, Helmut Schatz, Christopher J Todd, Anthony D Woolf, Fernando Rivadeneira, Muhammad K Javaid, Cyrus Cooper, Alan J Silman, Terence W O'Neill, Jonathan Reeve
Objectives.: To assess the prevalences across Europe of radiological indices of degenerative inter-vertebral disc disease (DDD); and to quantify their associations with, age, sex, physical anthropometry, areal BMD (aBMD) and change in aBMD with time. Methods.: In the population-based European Prospective Osteoporosis Study, 27 age-stratified samples of men and women from across the continent aged 50+ years had standardized lateral radiographs of the lumbar and thoracic spine to evaluate the severity of DDD, using the Kellgren-Lawrence (KL) scale...
April 7, 2017: Rheumatology
https://www.readbyqxmd.com/read/28374128/cage-deviation-in-the-subaxial-cervical-spine-in-relation-to-implant-position-in-the-sagittal-plane
#8
Klaus Christian Mende, Sven Oliver Eicker, Friedrich Weber
Subsidence of interbody cages is a frequently observed and relevant complication in anterior cervical discectomy and fusion (ACDF). Only a handful of studies concentrated on the modality of subsidence and its clinical impact. We performed a retrospective analysis of ACDF patients from 2004 to 2010. Numeric analog scale (NAS) score pre-op and post-op, Oswestry Disability Index (ODI) on x-rays, endplate (EP) and cage dimensions, implant position, lordotic/kyphotic subsidence patterns (>5°), and cervical alignment were recorded...
April 4, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28299782/a-test-of-a-skeletal-ageing-method-based-on-resorption-of-the-alveolar-crest-following-tooth-loss-using-a-skeletal-population-of-documented-age-at-death
#9
Simon Mays
OBJECTIVES: Resorption of the alveolar process occurs following tooth loss, and appears to continue for a prolonged period. Previous study (Mays, ) with a known-age collection of human remains suggested the potential of this phenomenon for age estimation in remains of adults who have lost one or more molar teeth. This article tests this ageing technique on another known age group, and attempts to evaluate the impact of some extraneous factors on the method. MATERIALS AND METHODS: The study group comprises adult skeletons (N = 110) of documented age at death from 18th to 19th century London...
March 16, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28294643/a-videofluoroscopy-based-tracking-algorithm-for-quantifying-the-time-course-of-human-intervertebral-displacements
#10
Christian Balkovec, Jim H Veldhuis, John W Baird, G Wayne Brodland, Stuart M McGill
The motions of individual intervertebral joints can affect spine motion, injury risk, deterioration, pain, treatment strategies, and clinical outcomes. Since standard kinematic methods do not provide precise time-course details about individual vertebrae and intervertebral motions, information that could be useful for scientific advancement and clinical assessment, we developed an iterative template matching algorithm to obtain this data from videofluoroscopy images. To assess the bias of our approach, vertebrae in an intact porcine spine were tracked and compared to the motions of high-contrast markers...
May 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28243378/change-of-lumbar-ligamentum-flavum-after-indirect-decompression-using-anterior-lumbar-interbody-fusion
#11
Seiji Ohtori, Sumihisa Orita, Kazuyo Yamauchi, Yawara Eguchi, Yasuchika Aoki, Junichi Nakamura, Masayuki Miyagi, Miyako Suzuki, Gou Kubota, Kazuhide Inage, Takeshi Sainoh, Jun Sato, Kazuki Fujimoto, Yasuhiro Shiga, Koki Abe, Hiroto Kanamoto, Gen Inoue, Kazuhisa Takahashi, Takeo Furuya, Masao Koda
STUDY DESIGN: Retrospective case series. PURPOSE: The purpose of this study was to examine changes in the ligamentum flavum thickness and remodeling of the spinal canal after anterior fusion during a 10-year follow-up. OVERVIEW OF LITERATURE: Extreme lateral interbody fusion provides minimally invasive treatment of the lumbar spine; this anterior fusion without direct posterior decompression, so-called indirect decompression, can achieve pain relief...
February 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28190488/effect-of-a-titanium-cage-as-a-stand-alone-device-on-biomechanical-stability-in-the-lumbosacral-spine-of-canine-cadavers
#12
M Teunissen, A J van der Veen, T H Smit, M A Tryfonidou, B P Meij
Degenerative lumbosacral stenosis is a common disease in dogs characterised by intervertebral disc herniation, loss of disc height and stenosis. Decompressive dorsal laminectomy and partial discectomy can cause spinal instability and worsen foraminal stenosis. Pedicle screw and rod fixation (PSRF) with an intervertebral body cage allows for distraction and restoration of disc height and restores foraminal apertures. The aim of this study was to evaluate the ex vivo biomechanical properties of a titanium intervertebral cage alone and in combination with PSRF in the lumbosacral spine of dogs...
February 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28152193/impact-of-low-weight-severity-and-menstrual-status-on-bone-in-adolescent-girls-with-anorexia-nervosa
#13
Nurgun Kandemir, Kendra Becker, Meghan Slattery, Shreya Tulsiani, Vibha Singhal, Jennifer J Thomas, Kathryn Coniglio, Hang Lee, Karen K Miller, Kamryn T Eddy, Anne Klibanski, Madhusmita Misra
Clinicians currently use different low-weight cut-offs both to diagnose anorexia nervosa (AN) and to determine AN severity in adolescent girls. The purpose of this study was to evaluate the clinical utility of existing cut-offs and severity criteria by determining which are most strongly associated with risk for low bone mineral density (BMD). Height adjusted BMD Z scores were calculated for 352 females: 262 with AN and 90 healthy controls (controls) (12-20.5 years), using data from the BMD in Childhood Study, for the lumbar spine, whole body less head, and total hip...
April 2017: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/28119439/successful-treatment-of-tumour-induced-osteomalacia-after-resection-of-an-oral-peripheral-ossifying-fibroma
#14
Mark Anthony Santiago Sandoval, Majorie Amoroto Palermo, Ryner Carrillo, Rafael Bundoc, Jose Ma Carnate, Romelito Jose Galsim
Tumour-induced osteomalacia is a paraneoplastic syndrome wherein bone is affected by a hormone from a tumour that causes renal phosphate wasting and hypophosphataemia. Here, we present the case of a 31-year-old man who has been suffering from generalised bone pains and a spine deformity that led to loss of height. Pertinent findings are low serum phosphorus, low vitamin D and decreased bone mineral density. These findings led to a diagnosis of osteomalacia. However, the finding of an oral mass raised some questions as to what role it plays in the patient's disease...
January 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28090452/classifying-thoracolumbar-fractures-role-of-quantitative-imaging
#15
REVIEW
Fernando Ruiz Santiago, Pablo Tomás Muñoz, Elena Moya Sánchez, Marta Revelles Paniza, Alberto Martínez Martínez, Antonio Luis Pérez Abela
This article describes different types of vertebral fractures that affect the thoracolumbar spine and the most relevant contributions of the different classification systems to vertebral fracture management. The vertebral fractures types are based on the three columns model of Denis that includes compression, burst, flexion-distraction and fracture-dislocation types. The most recent classifications systems of these types of fractures are reviewed, including the Thoracolumbar Injury Classification and Severity score (TLICS) and the Arbeitsgemeinschaft für Osteosynthesefragen Spine Thoracolumbar Injury Classification and Severity score (AOSpine-TLICS)...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/27863890/normal-values-of-cervical-vertebral-measurements-according-to-age-and-sex-in-ct
#16
Serhad Omercikoglu, Erhan Altunbas, Haldun Akoglu, Ozge Onur, Arzu Denizbasi
INTRODUCTION: Atlantodental interval (ADI), basion-dental interval (BDI) and the thickness of prevertebral soft tissue (TOPST) measured in lateral cervical radiographs were reported to be useful indicators and indirect signs of underlying cervical spine injuries. However, cervical computed tomography (MDCT) is the first method of imaging used in all trauma patients and upper normal limits (UNLs) of cervical distances according to age and sex are undetermined. Therefore, we aimed to calculate these metrics...
March 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27779600/lumbar-spine-paraspinal-muscle-and-intervertebral-disc-height-changes-in-astronauts-after-long-duration-spaceflight-on-the-international-space-station
#17
Douglas G Chang, Robert M Healey, Alexander J Snyder, Jojo V Sayson, Brandon R Macias, Dezba G Coughlin, Jeannie F Bailey, Scott E Parazynski, Jeffrey C Lotz, Alan R Hargens
STUDY DESIGN: Prospective case series. OBJECTIVE: Evaluate lumbar paraspinal muscle (PSM) cross-sectional area and intervertebral disc (IVD) height changes induced by a 6-month space mission on the International Space Station. The long-term objective of this project is to promote spine health and prevent spinal injury during space missions and here on Earth. SUMMARY OF BACKGROUND DATA: National Aeronautics and Space Administration (NASA) crewmembers have a 4...
December 15, 2016: Spine
https://www.readbyqxmd.com/read/27757680/evaluation-of-a-new-approach-to-compute-intervertebral-disc-height-measurements-from-lateral-radiographic-views-of-the-spine
#18
Brett T Allaire, M Clara DePaolis Kaluza, Alexander G Bruno, Elizabeth J Samelson, Douglas P Kiel, Dennis E Anderson, Mary L Bouxsein
PURPOSE: Current standard methods to quantify disc height, namely distortion compensated Roentgen analysis (DCRA), have been mostly utilized in the lumbar and cervical spine and have strict exclusion criteria. Specifically, discs adjacent to a vertebral fracture are excluded from measurement, thus limiting the use of DCRA in studies that include older populations with a high prevalence of vertebral fractures. Thus, we developed and tested a modified DCRA algorithm that does not depend on vertebral shape...
January 2017: European Spine Journal
https://www.readbyqxmd.com/read/27707846/radiographic-changes-in-the-cervical-spine-following-anterior-arthrodesis-a-long-term-analysis-of-166-patients
#19
Raj D Rao, Donald R Gore, Shu-Jie Tang, Brandon J Rebholz, Narayan Yoganandan, Mei Wang
BACKGROUND: Adjacent segment degeneration frequently develops following anterior cervical discectomy and fusion. The objectives of the present study were to characterize the long-term evolution of degenerative radiographic changes at segments adjacent to anterior cervical fusion and to identify factors associated with the development of these changes, including the preoperative condition of the cervical spine and parameters related to arthrodeses. METHODS: One hundred and sixty-six patients who underwent anterior cervical discectomy and fusion for symptomatic cervical spondylosis or disc herniation were followed radiographically for a mean time of 12...
October 5, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27683690/third-generation-percutaneous-vertebral-augmentation-systems
#20
REVIEW
Daniele Vanni, Renato Galzio, Anna Kazakova, Andrea Pantalone, Giovanni Grillea, Marcello Bartolo, Vincenzo Salini, Vincenzo Magliani
Currently, there is no general consensus about the management of osteoporotic vertebral fractures (OVF). In the past, conservative treatment for at least one month was deemed appropriate for the majority of vertebral fractures. When pain persisted after conservative treatment, it was necessary to consider surgical interventions including: vertebroplasty for vertebral fractures with less than 30% loss of height of the affected vertebral body and kyphoplasty for vertebral fractures with greater than 30% loss of height...
March 2016: Journal of Spine Surgery (Hong Kong)
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