keyword
MENU ▼
Read by QxMD icon Read
search

Posterior position

keyword
https://www.readbyqxmd.com/read/27933475/how-safe-is-minimally-invasive-pedicle-screw-placement-for-treatment-of-thoracolumbar-spine-fractures
#1
Timo Michael Heintel, Stefan Dannigkeit, Annabel Fenwick, Martin Cornelius Jordan, Hendrik Jansen, Fabian Gilbert, Rainer Meffert
STUDY DESIGN: Prospective analysis of patients who underwent minimally invasive posterior instrumentation. OBJECTIVE: The purpose of this study was to evaluate the safety of minimally invasive pedicle screw placement in patients with unstable thoracic and lumbar spine fractures using the conventional fluoroscopy technique. Although wound infection, haematoma, and new neurological deficit due to screw malplacement remain a common source of morbidity, estimates of their rates of occurrence remain relatively limited...
December 8, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27933139/the-neuromuscular-system-of-pycnophyes-kielensis-kinorhyncha-allomalorhagida-investigated-by-confocal-laser-scanning-microscopy
#2
Andreas Altenburger
BACKGROUND: Kinorhynchs are ecdysozoan animals with a phylogenetic position close to priapulids and loriciferans. To understand the nature of segmentation within Kinorhyncha and to infer a probable ancestry of segmentation within the last common ancestor of Ecdysozoa, the musculature and the nervous system of the allomalorhagid kinorhynch Pycnophyes kielensis were investigated by use of immunohistochemistry, confocal laser scanning microscopy, and 3D reconstruction software. RESULTS: The kinorhynch body plan comprises 11 trunk segments...
2016: EvoDevo
https://www.readbyqxmd.com/read/27932751/-a-case-of-subacute-combined-degeneration-caused-by-vitamin-b-sub-12-sub-deficiency-in-a-cervical-spondylosis-surgery-referral
#3
Kunio Yokoyama, Masahiro Kawanishi, Akira Sugie, Makoto Yamada, Hidekazu Tanaka, Yutaka Ito, Toshihiko Kuroiwa
A 62-year-old man with a 1-year history of numbness of the extremities, clumsiness, and gait disorder was diagnosed with cervical spondylotic myelopathy at a neighboring clinic and referred to our institution for surgery. The patient had undergone a total gastrectomy 6 years previously. Flattening of the cervical cord, associated with diffuse cervical spondylosis and intramedullary intensity change, was observed on magnetic resonance imaging of the cervical spine. Neurological examination revealed decreased vibratory and position sense in all limbs, with posterior funiculus-based neurological symptoms...
December 2016: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/27932168/spindle-cell-lipoma-in-an-end-stage-renal-allograft-case-report
#4
Z Zhao, S Selvarajan, A L S Tiong, T H Lim, L Y Khor
BACKGROUND: Spindle cell lipoma is an uncommon variant of lipoma and usually occurs as a solitary, subcutaneous, and well circumscribed lesion in the posterior neck, shoulders, and back of older men. Primary renal lipomas are rarely reported. Spindle cell lipoma in the kidney has not been previously described in the literature. CASE REPORT: A 60-year-old Chinese man suffered graft failure 10 years after living related donor kidney transplantation. During cancer surveillance, he was found to have a mass in the renal allograft, which increased in size and was suspicious for renal cell carcinoma on computerized tomographic scan...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27930899/the-cingulate-cortex-of-older-adults-with-excellent-memory-capacity
#5
Feng Lin, Ping Ren, Mark Mapstone, Steven P Meyers, Anton Porsteinsson, Timothy M Baran
Memory deterioration is the earliest and most devastating cognitive deficit in normal aging and Alzheimer's disease (AD). Some older adults, known as "Supernormals", maintain excellent memory. This study examined relationships between cerebral amyloid deposition and functional connectivity (FC) within the cingulate cortex (CC) and between CC and other regions involved in memory maintenance between Supernormals, healthy controls (HC), and those at risk for AD (amnestic mild cognitive impairment [MCI]). Supernormals had significantly stronger FC between anterior CC and R-hippocampus, middle CC (MCC) and L-superior temporal gyrus, and posterior CC (PCC) and R-precuneus, while weaker FC between MCC and R-middle frontal gyrus and MCC and R-thalamus than other groups...
November 19, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/27930820/a-bayesian-approach-to-age-at-death-estimation-from-osteoarthritis-of-the-shoulder-in-modern-north-americans
#6
Ashley L Brennaman, Kim R Love, Jonathan D Bethard, James T Pokines
Osteoarthritis (OA) is a marker of degeneration within the skeleton, frequently associated with age. This study quantifies the correlation between OA and age-at-death and investigates the utility of shoulder OA as a forensic age indicator using a modern North American sample of 206 individuals. Lipping, surface porosity, osteophyte formation, eburnation, and percentage of joint surface affected were recorded on an ordinal scale and summed to create composite scores that were assigned a specific phase. Spearman's correlation indicated a positive relationship between each composite score and age (right shoulder = 0...
December 8, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27930470/correction-of-lying-ears-by-augmentation-of-the-conchoscaphal-angle
#7
Sung-Eun Kim, Chi-Ho Yeo, Taegon Kim, Yong-Ha Kim, Jun Ho Lee, Kyu-Jin Chung
Lying ears are defined as ears that protrude less from the head, and in frontal view, are characterized by lateral positioning of antihelical contour relative to the helical rim. These aesthetically displeasing ears require correction in accord with the goals of otoplasty stated by McDowell. The authors present a case of lying ears treated by correcting the conchomastoid angle using Z-plasty, resection of posterior auricular muscle, and correction of the conchoscaphal angle by releasing cartilage using 2 full-thickness incisions and grafting of a conchal cartilage spacer...
December 7, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27930391/the-role-of-c2-c7-angle-in-the-development-of-dysphagia-after-anterior-and-posterior-cervical-spine-surgery
#8
Wei Tian, Jie Yu
STUDY DESIGN: This is a retrospective clinical study. OBJECTIVE: To analyze the relationship between cervical alignment and the development of dysphagia after anterior and posterior cervical (PC) spine surgery [anterior cervical discectomy and fusion (ACDF), cervical disk replacement (CDR), and PC]. SUMMARY OF BACKGROUND DATA: Dysphagia is a known complication of cervical surgery and may be prolonged or occasionally serious. A previous study showed dysphagia after occipitocervical fusion was caused by oropharyneal stenosis resulting from O-C2 (upper cervical lordosis) fixation in a flexed position...
December 7, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27930091/arthroscopic-hip-surgery-frequency-of-postoperative-mr-arthrographic-findings-in-asymptomatic-and-symptomatic-patients
#9
Chan-Hi Olaf Kim, Tobias J Dietrich, Patrick O Zingg, Claudio Dora, Christian W A Pfirrmann, Reto Sutter
Purpose To determine and compare the frequency of imaging abnormalities in asymptomatic and symptomatic patients after arthroscopic hip surgery. Materials and Methods This study was approved by the institutional review board. Informed consent was obtained from all patients. Thirty-four patients (17 asymptomatic and 17 symptomatic patients) underwent 1.5-T magnetic resonance (MR) arthrography of the hip 1 year after arthroscopic treatment of femoroacetabular impingement. Two readers independently analyzed all MR arthrographic images for the presence of abnormal imaging findings, including capsular adhesions at the femoral neck, obliteration of the paralabral sulcus, labral defects, and defects of the hip capsule in several anatomic positions (anterior to posterior)...
December 7, 2016: Radiology
https://www.readbyqxmd.com/read/27929514/evaluation-of-kidney-motion-and-target-localization-in-abdominal-sbrt-patients
#10
Marcus Sonier, William Chu, Nafisha Lalani, Darby Erler, Patrick Cheung, Renee Korol
The purpose of this study was to evaluate bilateral kidney and target translational/rotational intrafraction motion during stereotactic body radiation therapy treatment delivery of primary renal cell carcinoma and oligometastatic adrenal lesions for patients immobilized in the Elekta BodyFIX system. Bilateral kidney motion was assessed at midplane for 30 patients immobilized in a full-body dual-vacuum-cushion system with two patients immobilized via abdominal compression. Intrafraction motion was assessed for 15 patients using kilovoltage cone-beam computed tomography (kV-CBCT) datasets (n = 151) correlated to the planning CT...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27929243/epididymitis-an-overview
#11
John R McConaghy, Bethany Panchal
Inflammation of the epididymis, or epididymitis, is commonly seen in the outpatient setting. Etiology and treatment are based on patient age and the likely causative organisms. Epididymitis presents as the gradual onset of posterior scrotal pain that may be accompanied by urinary symptoms such as dysuria and urinary frequency. Physical findings include a swollen and tender epididymis with the testis in an anatomically normal position. Although the etiology is largely unknown, reflux of urine into the ejaculatory ducts is considered the most common cause of epididymitis in children younger than 14 years...
November 1, 2016: American Family Physician
https://www.readbyqxmd.com/read/27928549/switching-the-rate-and-pattern-of-cell-division-for-neural-tube-closure
#12
Yosuke Ogura, Yasunori Sasakura
The morphogenetic movement associated with neural tube closure (NTC) requires both positive and negative regulations of cell proliferation. The dual requirement of cell division control during NTC underscores the importance of the developmental control of cell division. In the chordate ascidian, midline fusions of the neural ectoderm and surface ectoderm (SE) proceed in the posterior-to-anterior direction, followed by a single wave of asynchronous and patterned cell division in SE. Before NTC, SE exhibits synchronous mitoses; disruption of the synchrony causes a failure of NTC...
2016: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/27928235/diagnostic-accuracy-of-cbct-with-different-voxel-sizes-and-intraoral-digital-radiography-for-detection-of-periapical-bone-lesions-an-ex-vivo-study
#13
Shirin Sakhdari, Ahmad Reza Talaeipour, Maziar Talaeipour, Maryam Pazhutan, Sanaz Heidarkhan Tehrani, Mohammad Javad Kharazifard
OBJECTIVES: This study sought to assess the diagnostic accuracy of cone beam computed tomography (CBCT) with different voxel sizes and intraoral digital radiography with photostimulable phosphor (PSP) plate for detection of periapical (PA) bone lesions. MATERIALS AND METHODS: In this ex vivo diagnostic study, one-millimeter defects were created in the alveolar sockets of 15 bone blocks, each with two posterior teeth. A no-defect control group was also included. Digital PA radiographs with PSP plates and CBCT scans with 200, 250 and 300μ voxel sizes were obtained...
March 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/27927544/assessment-of-lowest-instrumented-vertebra-tilt-on-radiographic-measurements-in-lenke-c-modifier-curves-undergoing-selective-thoracic-fusion-in-adolescent-idiopathic-scoliosis
#14
David L Skaggs, Derek A Seehausen, Kent T Yamaguchi, Raymond J Hah, Margaret L Wright, David B Bumpass, Han J Kim, Lindsay M Andras, Michael G Vitale, Lawrence G Lenke
STUDY DESIGN: Multicenter, retrospective cohort study. OBJECTIVES: The purpose of this study is to determine how the amount of residual lowest instrumented vertebra (LIV) tilt correlates with radiographic measurements. SUMMARY OF BACKGROUND DATA: When performing a selective thoracic posterior spinal fusion for adolescent idiopathic scoliosis (AIS), the LIV may be tilted into the lumbar curve or made horizontal. METHODS: This is a multicenter retrospective study of 33 consecutive patients with AIS, Lenke types 1 to 4, lumbar modifier C, and a minimum follow-up of 2 years, who underwent selective thoracic posterior spinal fusions...
March 2016: Spine Deformity
https://www.readbyqxmd.com/read/27927517/management-of-spinal-implants-in-acute-pediatric-surgical-site-infections-a-multicenter-study
#15
Michael P Glotzbecker, Jaime A Gomez, Patricia E Miller, Michael J Troy, David L Skaggs, Michael G Vitale, John M Flynn, Kody K Barrett, Gregory I Pace, Brittany N Atuahene, Daniel J Hedequist
STUDY DESIGN: A retrospective review of patients who underwent posterior spinal fusion (PSF) and returned within 90 days with an acute infection. OBJECTIVES: The study motive is to identify and understand the risk factors associated with failure of retaining spinal implants and failure to treat acute infection. BACKGROUND: The natural history of early surgical site infection (SSI) (less than 3 months) after PSF is not known and removing the implants early after PSF risks pseudarthrosis and deformity progression...
July 2016: Spine Deformity
https://www.readbyqxmd.com/read/27927035/robotic-partial-nephrectomy-for-posterior-tumors-via-a-retroperitoneal-approach-offers-decreased-length-of-stay-compared-to-the-transperitoneal-approach-a-propensity-matched-analysis
#16
Matthew Joseph Maurice, Jihad Kaouk, Daniel Ramirez, Sam Bhayani, Mohamad E Allaf, Craig G Rogers, Michael D Stifelman
INTRODUCTION: We sought to compare surgical outcomes between transperitoneal and retroperitoneal robotic partial nephrectomy (RPN) for posterior tumors. PATIENTS AND METHODS: Using our multi-institutional RPN database, we reviewed 610 consecutive cases for posterior renal masses treated between 2007-2015. Primary outcomes were complications, operative time, length of stay (LOS), surgical margin status, and eGFR preservation. Secondary outcomes were estimated blood loss, warm ischemia time (WIT), disease recurrence, and disease-specific mortality...
December 7, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27925647/left-ventricular-function-assessed-by-one-point-carotid-wave-intensity-in-newly-diagnosed-untreated-hypertensive-patients
#17
Olga Vriz, Serena Favretto, Joanna Jaroch, Rychard Wojciech, Eduardo Bossone, Caterina Driussi, Francesco Antonini-Canterin, Paolo Palatini, Krystyna Loboz-Grudzien
OBJECTIVES: To investigate whether newly diagnosed untreated hypertensive patients show higher left ventricular (LV) contractility, as assessed by traditional echocardiographic indices and carotid wave intensity (WI) parameters, including amplitude of the peak during early (W1 ) and late systole (W2 ). METHODS: A total of 145 untreated hypertensive patients were compared with 145 age- and sex-matched normotensive subjects. They underwent comprehensive echocardiography and WI analysis...
November 28, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27923929/end-stopping-predicts-curvature-tuning-along-the-ventral-stream
#18
Carlos R Ponce, Till S Hartmann, Margaret S Livingstone
: Neurons in primate inferotemporal cortex are clustered into patches of shared image preferences. Functional imaging has shown that these patches are activated by natural categories (e.g. faces, body parts and places), artificial categories (numerals, words) and geometric features (curvature and real-world size). These domains develop in the same cortical locations across monkeys and humans, which raises the possibility of common innate mechanisms. Although these commonalities could be high-level template-based categories, it is alternatively possible that the domain locations are constrained by low-level properties, such as end-stopping, eccentricity and the shape of the preferred images...
December 6, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27923120/long-oskar-controls-mitochondrial-inheritance-in-drosophila-melanogaster
#19
Thomas Ryan Hurd, Beate Herrmann, Julia Sauerwald, Justina Sanny, Markus Grosch, Ruth Lehmann
Inherited mtDNA mutations cause severe human disease. In most species, mitochondria are inherited maternally through mechanisms that are poorly understood. Genes that specifically control the inheritance of mitochondria in the germline are unknown. Here, we show that the long isoform of the protein Oskar regulates the maternal inheritance of mitochondria in Drosophila melanogaster. We show that, during oogenesis, mitochondria accumulate at the oocyte posterior, concurrent with the bulk streaming and churning of the oocyte cytoplasm...
December 5, 2016: Developmental Cell
https://www.readbyqxmd.com/read/27922719/markov-mixed-effects-modeling-using-electronic-adherence-monitoring-records-identifies-influential-covariates-to-hiv-preexposure-prophylaxis
#20
Kumpal Madrasi, Ayyappa Chaturvedula, Jessica E Haberer, Mark Sale, Michael J Fossler, David Bangsberg, Jared M Baeten, Connie Celum, Craig W Hendrix
Adherence is a major factor in the effectiveness of preexposure prophylaxis (PrEP) for HIV prevention. Modeling patterns of adherence helps to identify influential covariates of different types of adherence as well as to enable clinical trial simulation so that appropriate interventions can be developed. We developed a Markov mixed-effects model to understand the covariates influencing adherence patterns to daily oral PrEP. Electronic adherence records (date and time of medication bottle cap opening) from the Partners PrEP ancillary adherence study with a total of 1147 subjects were used...
December 6, 2016: Journal of Clinical Pharmacology
keyword
keyword
9366
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"