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https://www.readbyqxmd.com/read/28445910/influence-of-contrast-media-on-bone-mineral-density-bmd-measurements-from-routine-contrast-enhanced-mdct-datasets-using-a-phantom-less-bmd-measurement-tool
#1
Andrea Toelly, Constanze Bardach, Michael Weber, Rui Gong, Yanbo Lai, Pei Wang, Yulin Guo, Jan Kirschke, Thomas Baum, Michael Gruber
Aim To evaluate the differences in phantom-less bone mineral density (BMD) measurements in contrast-enhanced routine MDCT scans at different contrast phases, and to develop an algorithm for calculating a reliable BMD value. Materials and Methods 112 postmenopausal women from the age of 40 to 77 years (mean age: 57.31 years; SD 9.61) who underwent a clinically indicated MDCT scan, consisting of an unenhanced, an arterial, and a venous phase, were included. A retrospective analysis of the BMD values of the Th12 to L4 vertebrae in each phase was performed using a commercially available phantom-less measurement tool...
April 26, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28445420/vitamin-d-and-calcium-are-required-during-denosumab-treatment-in-osteoporosis-with-rheumatoid-arthritis
#2
Yukio Nakamura, Takako Suzuki, Tomohiko Yoshida, Hideshi Yamazaki, Hiroyuki Kato
The aim of this 12-month retrospective study was to evaluate differences in the outcomes of denosumab alone or denosumab combined with vitamin D and calcium supplementation in patients having osteoporosis (OP) with rheumatoid arthritis (RA). Patients were divided into the denosumab monotherapy group (denosumab group, 22 cases) or denosumab plus vitamin D supplementation group (combination group, 21 cases). We measured serum bone alkaline phosphatase (BAP), N-terminal propeptide of type 1 collagen (P1NP), tartrate-resistant acid phosphatase (TRACP)-5b, and urinary N-terminal telopeptide of type-I collagen (NTX) at baseline, 1 week, and 1, 2, 4, 6, 8, and 12 months...
April 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28444475/vertebral-abnormality-without-spine-curvature-deformity-on-prenatal-ultrasonography-sonographic-findings-and-postnatal-radiographic-correlations
#3
Mi Jin Song, Young-Hwa Kim
PURPOSE: To evaluate prenatal US features and postnatal radiographic findings of fetuses with a sonographically detected vertebral abnormality (VA) without spine-curvature deformity (SCD). METHODS: Twenty-six fetuses showing a VA without SCD on prenatal US at our ultrasound center for a 5-year period were retrospectively identified and evaluated for sonographic data and coexisting anomalies. Medical records and postnatal radiographs of all 16 live births were reviewed...
April 25, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28444429/hypopharyngeal-and-upper-esophageal-ulceration-after-cervical-spine-radiotherapy-concurrent-with-crizotinib
#4
Marcus H Zimmermann, Gabriele Beckmann, Pius Jung, Michael Flentje
Herein, the authors describe the case of a 31-year-old female patient with primary metastatic adenocarcinoma of the lung referred for radiation therapy of newly diagnosed intramedullary spinal cord metastasis at C4/5 and an adjacent osteolytic lesion. Radiotherapy of the cervical spine level C3 to C5, including the whole vertebra, was performed with 30 Gy in 10 fractions. The patient's systemic therapy with crizotinib 250 mg twice daily was continued. After 8 fractions of radiation the patient developed increasing dysphagia...
April 25, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28443171/a-prospective-study-of-clinical-and-radiological-outcomes-of-zero-profile-cage-screw-implants-for-single-level-anterior-cervical-discectomy-and-fusion-is-segmental-lordosis-maintained-at-2-years
#5
Saumyajit Basu, Sreeramalingam Rathinavelu
STUDY DESIGN: Prospective cohort study. PURPOSE: To study clinicoradiological parameters of zero-profile cage screw used for anterior cervical discectomy and fusion (ACDF). OVERVIEW OF LITERATURE: Radiological parameters of various implants used for ACDF are available, but those for zero-profile cage are sparse. METHODS: Patients with unilateral intractable brachialgia due to single-level cervical disc prolapse between April 1, 2011 and March 31, 2014 were included...
April 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28443161/surgical-morphometry-of-c1-and-c2-vertebrae-a-three-dimensional-computed-tomography-analysis-of-180-chinese-indian-and-malay-patients
#6
Chee Kean Lee, Tiam Siong Tan, Chris Yin Wei Chan, Mun Keong Kwan
STUDY DESIGN: Clinical imaging study. PURPOSE: To study the surgical morphometry of C1 and C2 vertebrae in Chinese, Indian, and Malay patients. OVERVIEW OF LITERATURE: C1 lateral mass and C2 pedicle screw fixation is gaining popularity. However, there is a lack of C1-C2 morphometric data for the Asian population. METHODS: Computed tomography analysis of 180 subjects (60 subjects each belonging to Chinese, Indian, and Malay populations) using simulation software was performed...
April 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28442646/clinico-pathological-findings-in-a-striped-dolphin-stenella-coeruleoalba-affected-by-rhabdomyolysis-and-myoglobinuric-nephrosis-capture-myopathy
#7
Federico Bonsembiante, Cinzia Centelleghe, Gabriele Rossi, Stefania Giglio, Elena Madeo, Maria Elena Gelain, Sandro Mazzariol
A striped dolphin (Stenella coeruleoalba) calf stranded alive because of a Salter-Harris fracture type 1 of a caudal vertebra and remained in a provisional rehabilitation facility for 3 days where the fracture stabilization was attempted, but he died the day after bandaging. Serum and urine samples were collected during hospitalization (days 1, 2 and 3 serum and day 2 urine). Serum analysis showed increased urea, alanine transaminase, aspartate transaminase, and serum amyloid A values, while creatinine was below the lower limit...
April 21, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28441683/geometric-torsion-in-adolescent-idiopathic-scoliosis-a-new-method-to-differentiate-between-lenke-1-subtypes
#8
Jesse Shen, Samuel Kadoury, Hubert Labelle, Marjolaine Roy-Beaudry, Carl-Éric Aubin, Stefan Parent
STUDY DESIGN: Consecutive case series. OBJECTIVE: To study geometric torsion in thoracic adolescent idiopathic scoliosis (AIS) to propose it as a numerical three-dimensional (3D) parameter that quantifies the scoliosis deformity. SUMMARY OF BACKGROUND DATA: AIS is a 3D deformity of the spine. The most widely accepted and used classification systems, however, still rely on two-dimensional aspects of x-rays. Yet, a 3D classification of AIS remains elusive because there is no widely accepted 3D parameter in the clinical practice...
May 1, 2017: Spine
https://www.readbyqxmd.com/read/28441314/radiologic-parameters-can-affect-the-preoperative-decision-making-of-three-column-spinal-osteotomies-in-the-treatment-of-severe-and-stiff-kyhposcoliosis
#9
Hengwei Fan, Xueshi Li, Zifang Huang, Wenyuan Sui, Jingfan Yang, Yaolong Deng, Chongwen Wang, Chuandong Lang, Junlin Yang
STUDY DESIGN: Retrospective analysis. OBJECTIVE: To evaluate radiologic parameters affect spine surgeon's osteotomy choice on patients with severe and stiff thoracic kyphoscoliosis. SUMMARY OF BACKGROUD DATA: Three-column osteotomies were developed to address severe and stiff kyphoscolisis. Current choice on osteotomies based on the morphology of kyphosis, global balance and locations of the main curvature, however, quantitative basis for decision-making is still lacking...
April 24, 2017: Spine
https://www.readbyqxmd.com/read/28441310/a-dose-response-curve-for-a-gram-negative-spinal-implant-infection-model-in-rabbits
#10
Joseph L Laratta, Jamal N Shillingford, Nathan Hardy, Ronald A Lehman, Lawrence G Lenke, K Daniel Riew
STUDY DESIGN: Randomized complete block animal spinal implant infection model with internal control. OBJECTIVE: To develop a spinal implant animal infection model to simulate postoperative gram-negative wound infection. SUMMARY OF BACKGROUND DATA: Implant-associated surgical site infections (SSI) remain a dreaded complication of spinal surgery. Currently, over 30% of all spine SSIs are secondary to gram-negative bacteria. Traditional animal models have utilized gram-positive inoculums to simulate postoperative infection, but there exists no model in the literature for gram-negative infection in the setting of spinal instrumentation...
April 24, 2017: Spine
https://www.readbyqxmd.com/read/28441308/factors-associated-with-the-development-of-and-revision-for-proximal-junctional-kyphosis-in-440-consecutive-adult-spinal-deformity-patients
#11
Fred H Nicholls, Junseok Bae, Alexander A Theologis, Murat S Eksi, Christopher P Ames, Sigurd H Berven, Shane Burch, Bobby K Tay, Vedat Deviren
STUDY DESIGN: Retrospective review of prospectively collected data OBJECTIVE.: The aim of this study was to examine which radiographic parameters and surgical strategies are most closely associated with proximal junctional kyphosis (PJK) after adult spinal deformity (ASD) surgery, the need for revision surgery for PJK, and whether these differ based on the upper instrumented vertebra (UIV). SUMMARY OF BACKGROUND DATA: Multiple parameters are considered when planning correction of ASD...
April 24, 2017: Spine
https://www.readbyqxmd.com/read/28441307/90-day-readmission-after-lumbar-spinal-fusion-surgery-in-new-york-state-between-2005-and-2014-a-10-year-analysis-of-a-statewide-cohort
#12
Ali A Baaj, Gernot Lang, Wei-Chun Hsu, Mauricio J Avila, Jialin Mao, Art Sedrakyan
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To assess 90-day readmission and evaluate risk factors associated with readmission after lumbar fusion in New York State. SUMMARY OF BACKGROUND DATA: Readmission is becoming an important metric for quality and efficiency of healthcare. Readmission and its predictors following spine surgery are overall poorly understood and limited evidence is available specifically in lumbar fusion. METHODS: The New York Statewide Planning and Research Cooperative System (SPACRS) was utilized to capture patients undergoing lumbar fusion from 2005-2014...
April 24, 2017: Spine
https://www.readbyqxmd.com/read/28439632/a-rat-hysteropexy-model-for-evaluating-adhesion-formation-and-comparison-of-two-different-structured-meshes
#13
Ayse Filiz Gokmen-Karasu, Serdar Aydin, Fatma Cavide Sonmez, Ilknur Adanir, Gulsah Ilhan, Seda Ates
INTRODUCTION AND HYPOTHESIS: Peritonization of mesh during sacrohysteropexy is generally advocated to prevent adhesions to the viscera; however, randomized clinical trials are lacking, and peritonization may not be completely possible in a laparoscopic hysteropexy procedure. Our main objective was to describe a basic experimental rat sacrohysteropexy model. We hypothesized that even when peritoneal closure was omitted, using composite mesh would result in less adhesions to the viscera...
April 24, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28439199/comparison-of-methods-and-formulas-used-in-umbilical-venous-catheter-placement
#14
Mehmet Mutlu, Burcu Küçükalioğlu Parıltan, Yakup Aslan, İlker Eyüpoğlu, Şebnem Kader, Filiz Acar Aktürk
AIM: Central venous access is frequently provided by way of umbilical venous catheter placement in critically ill newborns. This study compared the methods of Dunn, Shukla-Ferrara, and Revised Shukla-Ferrara in determining the appropriate insertion length of umbilical vein catheters. MATERIAL AND METHODS: This prospective observational study was carried out in 121 newborns with umbilical venous catheter, group 1 (n=41) used Dunn method, group 2 (n=40) used the Shukla-Ferrara formula, and group 3 used revised Shukla-Ferrara formula (n=40)...
March 2017: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28438339/mercury-arsenic-cadmium-and-lead-in-two-commercial-shark-species-sphyrna-lewini-and-caraharinus-porosus-in-trinidad-and-tobago
#15
Azad Mohammed, Terry Mohammed
Sharks are long-lived apex predators which can accumulate toxic metals such as mercury and arsenic. Samples of Sphyrna lewini and Carcharinus porosus were collected from two commercial fish landing sites in Trinidad. Heavy metal concentrations were determined in the muscle, dorsal fin, vertebrae and liver using atomic absorption spectrometric. The provisional tolerable weekly intake (PTWI) and target hazard quotient (THQ) were determined to assess the potential health risks to consumers. Mercury levels ranged between 74-1899μg/kg in S...
April 21, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28437349/a-new-navigational-tool-for-pedicle-screw-placement-in-patients-with-severe-scoliosis-a-pilot-study-to-prove-feasibility-accuracy-and-identify-operative-challenges
#16
Michael Putzier, Patrick Strube, Riccardo Cecchinato, Claudio Lamartina, Eike K Hoff
STUDY DESIGN: Pilot study. OBJECTIVE: To develop and validate the feasibility and accuracy of a newly designed navigational spinal instrument guiding tool for patient-matched thoracic and lumbar pedicle screw placement in patients with severe scoliosis, and to identify intraoperative challenges that may be relevant. SUMMARY OF BACKGROUND DATA: Pedicle screw placement is challenging in severely rotated scoliotic spine with small diameters and asymmetrical shape of the pedicles and vertebrae...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28437340/proximal-junctional-kyphosis-following-posterior-hemivertebra-resection-and-short-fusion-in-children-younger-than-10-years
#17
Yingsong Wang, Noriaki Kawakami, Taichi Tsuji, Tetsuya Ohara, Yoshitaka Suzuki, Toshiki Saito, Ayato Nohara, Ryoji Tauchi, Kazuki Kawakami
STUDY DESIGN: A retrospective study. OBJECTIVE: To investigate whether proximal junctional kyphosis (PJK) or obvious proximal junctional angle (PJA) changes in the sagittal plane develops following short fusion in children younger than 10 years of age with congenital scoliosis, and to investigate the possible risk factors. SUMMARY OF BACKGROUND DATA: PJK following long spinal fusion in adolescents and adults is a serious postoperative complication...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28437338/ponte-osteotomy-during-dekyphosis-for-indirect-posterior-decompression-with-ossification-of-the-posterior-longitudinal-ligament-of-the-thoracic-spine
#18
Kei Ando, Shiro Imagama, Zenya Ito, Kazuyoshi Kobayashi, Junichi Ukai, Akio Muramoto, Ryuichi Shinjo, Tomohiro Matsumoto, Hiroaki Nakashima, Yukihiro Matsuyama, Naoki Ishiguro
STUDY DESIGN: Retrospective clinical study. PURPOSE: To investigate the outcomes after indirect posterior decompression and dekyphosis using multilevel Ponte osteotomies for ossification of the posterior longitudinal ligament (OPLL) of the thoracic spine. SUMMARY OF BACKGROUND DATA: There are no previous reports on the use of Ponte osteotomy to treat thoracic OPLL. METHODS: The subjects were 10 patients with an average age at surgery of 47 years, who underwent indirect posterior decompression and dekyphosis using multilevel Ponte osteotomies at our institute...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28437337/axial-plane-deformity-of-the-shoulder-in-adolescent-idiopathic-scoliosis
#19
Venugopal K Menon, Naveen Tahasildar, Haroon M Pillay, Anbuselvam M
STUDY DESIGN: Prospective observational study. OBJECTIVE: To study axial plane deformation of the shoulder in adolescent idiopathic scoliosis (AIS) and try to correlate it with curve type and surgical correction. SUMMARY OF BACKGROUND DATA: It is established that AIS is a 3-dimensional deformity. The rib hump is the most common manifestation of axial plane deformations; the least common manifestation seems to be upper trunk and shoulder rotation, which has been hitherto undescribed...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28437333/correction-capability-in-the-3-anatomic-planes-of-different-pedicle-screw-designs-in-scoliosis-instrumentation
#20
Xiaoyu Wang, Carl-Eric Aubin, John Coleman, Jeremy Rawlinson
STUDY DESIGN: Computer simulations to compare the correction capabilities of different pedicle screws in adolescent idiopathic scoliosis (AIS) instrumentations. OBJECTIVE: To compare the correction and resulting bone-screw forces associated with different pedicle screws in scoliosis instrumentations. SUMMARY OF BACKGROUND DATA: Pedicle screw fixation is widely used in surgical instrumentation for spinal deformity treatment. Screw design, correction philosophies, and surgical techniques are constantly evolving to achieve better control of the vertebrae and correction of the spinal deformity...
May 2017: Clinical Spine Surgery
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